VM Aborts when switching to seamless mode

[mdsystems]

I am using Linux Mint 17.3 Cinnamon edition, fully updated and a Linux Mint 17.3 VM, also Cinnamon edition. The proprietary NVida drivers (current version from the repository - 352.63) are in use. The host has a GeForce GTX 670 installed.

If I disable 3D, no problems appear to occur and seamless mode appears to operate. This, however, causes the guest OS to render in software mode, which I imagine is less efficient. Once 3D acceleration is enabled, switching to seamless mode causes the guest to immediately show as "Aborted" in the Virtualbox UI.

The host has 3 monitors and the VM is being displayed on just one of the monitors.

Checking the log, the end shows:

Code: Select all

00:00:11.474822 VMMDev: Guest Additions capability report: (0x0 -> 0x0) seamless: no, hostWindowMapping: no, graphics: no
00:00:11.474927 GUI: UISession::sltAdditionsChange: GA state change event came, notifying listeners.
00:00:11.474937 GUI: UIMachineLogicNormal::sltCheckForRequestedVisualStateType: Requested-state=0, Machine-state=5
00:00:12.358727 VMMDev: Guest Log: VBoxService 5.0.18 r106667 (verbosity: 0) linux.amd64 (Apr 18 2016 15:31:59) release log
00:00:12.358759 VMMDev: Guest Log: 00:00:00.004448 main     Log opened 2016-04-22T14:19:21.258189000Z
00:00:12.358922 VMMDev: Guest Log: 00:00:00.004700 main     OS Product: Linux
00:00:12.358947 VMMDev: Guest Log: 00:00:00.004731 main     OS Release: 3.13.0-37-generic
00:00:12.358966 VMMDev: Guest Log: 00:00:00.004750 main     OS Version: #64-Ubuntu SMP Mon Sep 22 21:28:38 UTC 2014
00:00:12.358988 VMMDev: Guest Log: 00:00:00.004771 main     Executable: /opt/VBoxGuestAdditions-5.0.18/sbin/VBoxService
00:00:12.358992 VMMDev: Guest Log: 00:00:00.004772 main     Process ID: 1819
00:00:12.358994 VMMDev: Guest Log: 00:00:00.004773 main     Package type: LINUX_64BITS_GENERIC
00:00:12.366774 VMMDev: Guest Log: 00:00:00.012526 main     5.0.18 r106667 started. Verbose level = 0
00:00:12.368164 GUI: UISession::sltAdditionsChange: GA state change event came, notifying listeners.
00:00:12.368180 GUI: UIMachineLogicNormal::sltCheckForRequestedVisualStateType: Requested-state=0, Machine-state=5
00:00:12.370050 GUI: UISession::sltAdditionsChange: GA state really changed, notifying listeners.
00:00:12.370070 GUI: UIMachineViewNormal::adjustGuestScreenSize: Adjust guest-screen size if necessary.
00:00:12.370077 GUI: UISession::sltAdditionsChange: GA state change event came, notifying listeners.
00:00:12.370082 GUI: UIMachineLogicNormal::sltCheckForRequestedVisualStateType: Requested-state=0, Machine-state=5
00:00:15.787668 Starting host clipboard service
00:00:15.787699 Shared clipboard: Initializing X11 clipboard backend
00:00:15.788777 Shared clipboard: Starting shared clipboard thread
00:00:15.800826 VMMDev: Guest Additions capability report: (0x0 -> 0x1) seamless: yes, hostWindowMapping: no, graphics: no
00:00:15.800941 GUI: UISession::sltAdditionsChange: GA state really changed, notifying listeners.
00:00:15.800964 GUI: UIMachineViewNormal::adjustGuestScreenSize: Adjust guest-screen size if necessary.
00:00:15.800969 GUI: UISession::sltAdditionsChange: GA state change event came, notifying listeners.
00:00:15.800982 GUI: UIMachineLogicNormal::sltCheckForRequestedVisualStateType: Requested-state=0, Machine-state=5
00:00:15.803816 VBVA: InfoScreen: [0] @0,0 800x600, line 0x15e0, BPP 32, flags 0x1
00:00:15.803848 Display::handleDisplayResize: uScreenId=0 pvVRAM=00007fb2f5121000 w=800 h=600 bpp=32 cbLine=0x15E0 flags=0x1
00:00:15.803873 GUI: UIFrameBufferPrivate::NotifyChange: Screen=0, Origin=0x0, Size=800x600, Sending to async-handler
00:00:15.803921 GUI: UIMachineView::sltHandleNotifyChange: Screen=0, Size=800x600
00:00:15.803933 GUI: UIFrameBufferPrivate::handleNotifyChange: Size=800x600
00:00:15.803943 GUI: UIFrameBufferPrivate::performResize: Size=800x600, Directly using source bitmap content
00:00:15.804043 GUI: UIMachineView::storeGuestSizeHint: Storing guest-screen size-hint for screen 0 as 800x600
00:00:15.804591 VBVA: InfoScreen: [0] @0,0 1400x947, line 0x15e0, BPP 32, flags 0x1
00:00:15.804604 Display::handleDisplayResize: uScreenId=0 pvVRAM=00007fb2f5121000 w=1400 h=947 bpp=32 cbLine=0x15E0 flags=0x1
00:00:15.804616 GUI: UIFrameBufferPrivate::NotifyChange: Screen=0, Origin=0x0, Size=1400x947, Sending to async-handler
00:00:15.806205 GUI: UIMachineView::sltHandleNotifyChange: Screen=0, Size=1400x947
00:00:15.806217 GUI: UIFrameBufferPrivate::handleNotifyChange: Size=1400x947
00:00:15.806223 GUI: UIFrameBufferPrivate::performResize: Size=1400x947, Directly using source bitmap content
00:00:15.807660 GUI: UIMachineView::storeGuestSizeHint: Storing guest-screen size-hint for screen 0 as 1400x947
00:00:16.679521 GUI: UIMediumEnumerator: Machine (or snapshot) event received, ID = e12b5e03-94d8-4a0d-a5e7-14cb607e22f9
00:00:16.679561 GUI: UIMediumEnumerator:  Old usage: 3bd9af4e-a992-4cad-bd69-ec4f4a7644bc, d1112e38-c573-4f39-b024-41f5a8e2e400
00:00:16.680291 GUI: UIMediumEnumerator:  New usage: 3bd9af4e-a992-4cad-bd69-ec4f4a7644bc, d1112e38-c573-4f39-b024-41f5a8e2e400
00:00:16.680308 GUI: UIMediumEnumerator:  Items currently in usage: 3bd9af4e-a992-4cad-bd69-ec4f4a7644bc, d1112e38-c573-4f39-b024-41f5a8e2e400
00:00:16.680369 GUI: UIMediumEnumerator: Machine (or snapshot) event processed, ID = e12b5e03-94d8-4a0d-a5e7-14cb607e22f9
00:00:16.689972 GUI: UIMediumEnumerator: Medium-enumeration finished!
00:00:16.757776 OpenGL Info: Render SPU: Opening display :0
00:00:16.786804 OpenGL Info: Render SPU: GL_VENDOR:   NVIDIA Corporation
00:00:16.786823 OpenGL Info: Render SPU: GL_RENDERER: GeForce GTX 670/PCIe/SSE2
00:00:16.786826 OpenGL Info: Render SPU: GL_VERSION:  4.5.0 NVIDIA 352.63
00:00:16.786828 OpenGL Info: Render SPU: GL_EXTENSIONS: GL_AMD_multi_draw_indirect GL_AMD_seamless_cubemap_per_texture GL_ARB_arrays_of_arrays GL_ARB_base_instance GL_ARB_bindless_texture GL_ARB_blend_func_extended GL_ARB_buffer_storage GL_ARB_clear_buffer_object GL_ARB_clear_texture GL_ARB_clip_control GL_ARB_color_buffer_float GL_ARB_compatibility GL_ARB_compressed_texture_pixel_storage GL_ARB_conservative_depth GL_ARB_compute_shader GL_ARB_compute_variable_group_size GL_ARB_conditional_render_inverted GL_ARB_copy_buffer GL_ARB_copy_image GL_ARB_cull_distance GL_ARB_debug_output GL_ARB_depth_buffer_float GL_ARB_depth_clamp GL_ARB_depth_texture GL_ARB_derivative_control GL_ARB_direct_state_access GL_ARB_draw_buffers GL_ARB_draw_buffers_blend GL_ARB_draw_indirect GL_ARB_draw_elements_base_vertex GL_ARB_draw_instanced GL_ARB_enhanced_layouts GL_ARB_ES2_compatibility GL_ARB_ES3_compatibility GL_ARB_ES3_1_compatibility GL_ARB_explicit_attrib_location GL_ARB_explicit_uniform_location GL_ARB_fragment_coord_conventions GL_ARB_fragment_layer_viewport GL_ARB_fragment_program GL_ARB_fragment_program_shadow GL_ARB_fragment_shader GL_ARB_framebuffer_no_attachments GL_ARB_framebuffer_object GL_ARB_framebuffer_sRGB GL_ARB_geometry_shader4 GL_ARB_get_program_binary GL_ARB_get_texture_sub_image GL_ARB_gpu_shader5 GL_ARB_gpu_shader_fp64 GL_ARB_half_float_pixel GL_ARB_half_float_vertex GL_ARB_imaging GL_ARB_indirect_parameters GL_ARB_instanced_arrays GL_ARB_internalformat_query GL_ARB_internalformat_query2 GL_NV_internalformat_sample_query GL_ARB_invalidate_subdata GL_ARB_map_buffer_alignment GL_ARB_map_buffer_range GL_ARB_multi_bind GL_ARB_multi_draw_indirect GL_ARB_multisample GL_ARB_multitexture GL_ARB_occlusion_query GL_ARB_occlusion_query2 GL_ARB_pipeline_statistics_query GL_ARB_pixel_buffer_object GL_ARB_point_parameters GL_ARB_point_sprite GL_ARB_program_interface_query GL_ARB_provoking_vertex GL_ARB_robust_buffer_access_behavior GL_ARB_robustness GL_ARB_sample_shading GL_ARB_sampler_objects GL_ARB_seamless_cube_map GL_ARB_seamless_cubemap_per_texture GL_ARB_separate_shader_objects GL_ARB_shader_atomic_counters GL_ARB_shader_bit_encoding GL_ARB_shader_draw_parameters GL_ARB_shader_group_vote GL_ARB_shader_image_load_store GL_ARB_shader_image_size GL_ARB_shader_objects GL_ARB_shader_precision GL_ARB_query_buffer_object GL_ARB_shader_storage_buffer_object GL_ARB_shader_subroutine GL_ARB_shader_texture_image_samples GL_ARB_shader_texture_lod GL_ARB_shading_language_100 GL_ARB_shading_language_420pack GL_ARB_shading_language_include GL_ARB_shading_language_packing GL_ARB_shadow GL_ARB_sparse_buffer GL_ARB_sparse_texture GL_ARB_stencil_texturing GL_ARB_sync GL_ARB_tessellation_shader GL_ARB_texture_barrier GL_ARB_texture_border_clamp GL_ARB_texture_buffer_object GL_ARB_texture_buffer_object_rgb32 GL_ARB_texture_buffer_range GL_ARB_texture_compression GL_ARB_texture_compression_bptc GL_ARB_texture_compression_rgtc GL_ARB_texture_cube_map GL_ARB_texture_cube_map_array GL_ARB_texture_env_add GL_ARB_texture_env_combine GL_ARB_texture_env_crossbar GL_ARB_texture_env_dot3 GL_ARB_texture_float GL_ARB_texture_gather GL_ARB_texture_mirror_clamp_to_edge GL_ARB_texture_mirrored_repeat GL_ARB_texture_multisample GL_ARB_texture_non_power_of_two GL_ARB_texture_query_levels GL_ARB_texture_query_lod GL_ARB_texture_rectangle GL_ARB_texture_rg GL_ARB_texture_rgb10_a2ui GL_ARB_texture_stencil8 GL_ARB_texture_storage GL_ARB_texture_storage_multisample GL_ARB_texture_swizzle GL_ARB_texture_view GL_ARB_timer_query GL_ARB_transform_feedback2 GL_ARB_transform_feedback3 GL_ARB_transform_feedback_instanced GL_ARB_transform_feedback_overflow_query GL_ARB_transpose_matrix GL_ARB_uniform_buffer_object GL_ARB_vertex_array_bgra GL_ARB_vertex_array_object GL_ARB_vertex_attrib_64bit GL_ARB_vertex_attrib_binding GL_ARB_vertex_buffer_object GL_ARB_vertex_program GL_ARB_vertex_shader GL_ARB_vertex_type_10f_11f_11f_rev GL_ARB_vertex_type_2_10_10_10_rev GL_ARB_viewport_array GL_ARB_window_pos GL_ATI_draw_buffers GL_ATI_texture_float GL_ATI_texture_mirror_once GL_S3_s3tc GL_EXT_texture_env_add GL_EXT_abgr GL_EXT_bgra GL_EXT_bindable_uniform GL_EXT_blend_color GL_EXT_blend_equation_separate GL_EXT_blend_func_separate GL_EXT_blend_minmax GL_EXT_blend_subtract GL_EXT_compiled_vertex_array GL_EXT_Cg_shader GL_EXT_depth_bounds_test GL_EXT_direct_state_access GL_EXT_draw_buffers2 GL_EXT_draw_instanced GL_EXT_draw_range_elements GL_EXT_fog_coord GL_EXT_framebuffer_blit GL_EXT_framebuffer_multisample GL_EXTX_framebuffer_mixed_formats GL_EXT_framebuffer_multisample_blit_scaled GL_EXT_framebuffer_object GL_EXT_framebuffer_sRGB GL_EXT_geometry_shader4 GL_EXT_gpu_program_parameters GL_EXT_gpu_shader4 GL_EXT_multi_draw_arrays GL_EXT_packed_depth_stencil GL_EXT_packed_float GL_EXT_packed_pixels GL_EXT_pixel_buffer_object GL_EXT_point_parameters GL_EXT_polygon_offset_clamp GL_EXT_provoking_vertex GL_EXT_rescale_normal GL_EXT_secondary_color GL_EXT_separate_shader_objects GL_EXT_separate_specular_color GL_EXT_shader_image_load_store GL_EXT_shader_integer_mix GL_EXT_shadow_funcs GL_EXT_stencil_two_side GL_EXT_stencil_wrap GL_EXT_texture3D GL_EXT_texture_array GL_EXT_texture_buffer_object GL_EXT_texture_compression_dxt1 GL_EXT_texture_compression_latc GL_EXT_texture_compression_rgtc GL_EXT_texture_compression_s3tc GL_EXT_texture_cube_map GL_EXT_texture_edge_clamp GL_EXT_texture_env_combine GL_EXT_texture_env_dot3 GL_EXT_texture_filter_anisotropic GL_EXT_texture_integer GL_EXT_texture_lod GL_EXT_texture_lod_bias GL_EXT_texture_mirror_clamp GL_EXT_texture_object GL_EXT_texture_shared_exponent GL_EXT_texture_sRGB GL_EXT_texture_sRGB_decode GL_EXT_texture_storage GL_EXT_texture_swizzle GL_EXT_timer_query GL_EXT_transform_feedback2 GL_EXT_vertex_array GL_EXT_vertex_array_bgra GL_EXT_vertex_attrib_64bit GL_EXT_x11_sync_object GL_EXT_import_sync_object GL_IBM_rasterpos_clip GL_IBM_texture_mirrored_repeat GL_KHR_context_flush_control GL_KHR_debug GL_KHR_robust_buffer_access_behavior GL_KHR_robustness GL_KTX_buffer_region GL_NV_bindless_multi_draw_indirect GL_NV_bindless_multi_draw_indirect_count GL_NV_bindless_texture GL_NV_blend_equation_advanced GL_NV_blend_square GL_NV_command_list GL_NV_compute_program5 GL_NV_conditional_render GL_NV_copy_depth_to_color GL_NV_copy_image GL_NV_depth_buffer_float GL_NV_depth_clamp GL_NV_draw_texture GL_NV_ES1_1_compatibility GL_NV_ES3_1_compatibility GL_NV_explicit_multisample GL_NV_fence GL_NV_float_buffer GL_NV_fog_distance GL_NV_fragment_program GL_NV_fragment_program_option GL_NV_fragment_program2 GL_NV_framebuffer_multisample_coverage GL_NV_geometry_shader4 GL_NV_gpu_program4 GL_NV_gpu_program4_1 GL_NV_gpu_program5 GL_NV_gpu_program5_mem_extended GL_NV_gpu_program_fp64 GL_NV_gpu_shader5 GL_NV_half_float GL_NV_light_max_exponent GL_NV_multisample_coverage GL_NV_multisample_filter_hint GL_NV_occlusion_query GL_NV_packed_depth_stencil GL_NV_parameter_buffer_object GL_NV_parameter_buffer_object2 GL_NV_path_rendering GL_NV_pixel_data_range GL_NV_point_sprite GL_NV_primitive_restart GL_NV_register_combiners GL_NV_register_combiners2 GL_NV_shader_atomic_counters GL_NV_shader_atomic_float GL_NV_shader_buffer_load GL_NV_shader_storage_buffer_object GL_NV_texgen_reflection GL_NV_texture_barrier GL_NV_texture_compression_vtc GL_NV_texture_env_combine4 GL_NV_texture_multisample GL_NV_texture_rectangle GL_NV_texture_shader GL_NV_texture_shader2 GL_NV_texture_shader3 GL_NV_transform_feedback GL_NV_transform_feedback2 GL_NV_uniform_buffer_unified_memory GL_NV_vdpau_interop GL_NV_vertex_array_range GL_NV_vertex_array_range2 GL_NV_vertex_attrib_integer_64bit GL_NV_vertex_buffer_unified_memory GL_NV_vertex_program GL_NV_vertex_program1_1 GL_NV_vertex_program2 GL_NV_vertex_program2_option GL_NV_vertex_program3 GL_NVX_conditional_render GL_NVX_gpu_memory_info GL_NVX_nvenc_interop GL_NV_shader_thread_group GL_NV_shader_thread_shuffle GL_KHR_blend_equation_advanced GL_SGIS_generate_mipmap GL_SGIS_texture_lod GL_SGIX_depth_texture GL_SGIX_shadow GL_SUN_slice_accum 
00:00:20.307940 OpenGL Info: Render SPU: GL_VENDOR:   NVIDIA Corporation
00:00:20.307965 OpenGL Info: Render SPU: GL_RENDERER: GeForce GTX 670/PCIe/SSE2
00:00:20.307977 OpenGL Info: Render SPU: GL_VERSION:  4.5.0 NVIDIA 352.63
00:00:20.307979 OpenGL Info: Render SPU: GL_EXTENSIONS: GL_AMD_multi_draw_indirect GL_AMD_seamless_cubemap_per_texture GL_ARB_arrays_of_arrays GL_ARB_base_instance GL_ARB_bindless_texture GL_ARB_blend_func_extended GL_ARB_buffer_storage GL_ARB_clear_buffer_object GL_ARB_clear_texture GL_ARB_clip_control GL_ARB_color_buffer_float GL_ARB_compatibility GL_ARB_compressed_texture_pixel_storage GL_ARB_conservative_depth GL_ARB_compute_shader GL_ARB_compute_variable_group_size GL_ARB_conditional_render_inverted GL_ARB_copy_buffer GL_ARB_copy_image GL_ARB_cull_distance GL_ARB_debug_output GL_ARB_depth_buffer_float GL_ARB_depth_clamp GL_ARB_depth_texture GL_ARB_derivative_control GL_ARB_direct_state_access GL_ARB_draw_buffers GL_ARB_draw_buffers_blend GL_ARB_draw_indirect GL_ARB_draw_elements_base_vertex GL_ARB_draw_instanced GL_ARB_enhanced_layouts GL_ARB_ES2_compatibility GL_ARB_ES3_compatibility GL_ARB_ES3_1_compatibility GL_ARB_explicit_attrib_location GL_ARB_explicit_uniform_location GL_ARB_fragment_coord_conventions GL_ARB_fragment_layer_viewport GL_ARB_fragment_program GL_ARB_fragment_program_shadow GL_ARB_fragment_shader GL_ARB_framebuffer_no_attachments GL_ARB_framebuffer_object GL_ARB_framebuffer_sRGB GL_ARB_geometry_shader4 GL_ARB_get_program_binary GL_ARB_get_texture_sub_image GL_ARB_gpu_shader5 GL_ARB_gpu_shader_fp64 GL_ARB_half_float_pixel GL_ARB_half_float_vertex GL_ARB_imaging GL_ARB_indirect_parameters GL_ARB_instanced_arrays GL_ARB_internalformat_query GL_ARB_internalformat_query2 GL_NV_internalformat_sample_query GL_ARB_invalidate_subdata GL_ARB_map_buffer_alignment GL_ARB_map_buffer_range GL_ARB_multi_bind GL_ARB_multi_draw_indirect GL_ARB_multisample GL_ARB_multitexture GL_ARB_occlusion_query GL_ARB_occlusion_query2 GL_ARB_pipeline_statistics_query GL_ARB_pixel_buffer_object GL_ARB_point_parameters GL_ARB_point_sprite GL_ARB_program_interface_query GL_ARB_provoking_vertex GL_ARB_robust_buffer_access_behavior GL_ARB_robustness GL_ARB_sample_shading GL_ARB_sampler_objects GL_ARB_seamless_cube_map GL_ARB_seamless_cubemap_per_texture GL_ARB_separate_shader_objects GL_ARB_shader_atomic_counters GL_ARB_shader_bit_encoding GL_ARB_shader_draw_parameters GL_ARB_shader_group_vote GL_ARB_shader_image_load_store GL_ARB_shader_image_size GL_ARB_shader_objects GL_ARB_shader_precision GL_ARB_query_buffer_object GL_ARB_shader_storage_buffer_object GL_ARB_shader_subroutine GL_ARB_shader_texture_image_samples GL_ARB_shader_texture_lod GL_ARB_shading_language_100 GL_ARB_shading_language_420pack GL_ARB_shading_language_include GL_ARB_shading_language_packing GL_ARB_shadow GL_ARB_sparse_buffer GL_ARB_sparse_texture GL_ARB_stencil_texturing GL_ARB_sync GL_ARB_tessellation_shader GL_ARB_texture_barrier GL_ARB_texture_border_clamp GL_ARB_texture_buffer_object GL_ARB_texture_buffer_object_rgb32 GL_ARB_texture_buffer_range GL_ARB_texture_compression GL_ARB_texture_compression_bptc GL_ARB_texture_compression_rgtc GL_ARB_texture_cube_map GL_ARB_texture_cube_map_array GL_ARB_texture_env_add GL_ARB_texture_env_combine GL_ARB_texture_env_crossbar GL_ARB_texture_env_dot3 GL_ARB_texture_float GL_ARB_texture_gather GL_ARB_texture_mirror_clamp_to_edge GL_ARB_texture_mirrored_repeat GL_ARB_texture_multisample GL_ARB_texture_non_power_of_two GL_ARB_texture_query_levels GL_ARB_texture_query_lod GL_ARB_texture_rectangle GL_ARB_texture_rg GL_ARB_texture_rgb10_a2ui GL_ARB_texture_stencil8 GL_ARB_texture_storage GL_ARB_texture_storage_multisample GL_ARB_texture_swizzle GL_ARB_texture_view GL_ARB_timer_query GL_ARB_transform_feedback2 GL_ARB_transform_feedback3 GL_ARB_transform_feedback_instanced GL_ARB_transform_feedback_overflow_query GL_ARB_transpose_matrix GL_ARB_uniform_buffer_object GL_ARB_vertex_array_bgra GL_ARB_vertex_array_object GL_ARB_vertex_attrib_64bit GL_ARB_vertex_attrib_binding GL_ARB_vertex_buffer_object GL_ARB_vertex_program GL_ARB_vertex_shader GL_ARB_vertex_type_10f_11f_11f_rev GL_ARB_vertex_type_2_10_10_10_rev GL_ARB_viewport_array GL_ARB_window_pos GL_ATI_draw_buffers GL_ATI_texture_float GL_ATI_texture_mirror_once GL_S3_s3tc GL_EXT_texture_env_add GL_EXT_abgr GL_EXT_bgra GL_EXT_bindable_uniform GL_EXT_blend_color GL_EXT_blend_equation_separate GL_EXT_blend_func_separate GL_EXT_blend_minmax GL_EXT_blend_subtract GL_EXT_compiled_vertex_array GL_EXT_Cg_shader GL_EXT_depth_bounds_test GL_EXT_direct_state_access GL_EXT_draw_buffers2 GL_EXT_draw_instanced GL_EXT_draw_range_elements GL_EXT_fog_coord GL_EXT_framebuffer_blit GL_EXT_framebuffer_multisample GL_EXTX_framebuffer_mixed_formats GL_EXT_framebuffer_multisample_blit_scaled GL_EXT_framebuffer_object GL_EXT_framebuffer_sRGB GL_EXT_geometry_shader4 GL_EXT_gpu_program_parameters GL_EXT_gpu_shader4 GL_EXT_multi_draw_arrays GL_EXT_packed_depth_stencil GL_EXT_packed_float GL_EXT_packed_pixels GL_EXT_pixel_buffer_object GL_EXT_point_parameters GL_EXT_polygon_offset_clamp GL_EXT_provoking_vertex GL_EXT_rescale_normal GL_EXT_secondary_color GL_EXT_separate_shader_objects GL_EXT_separate_specular_color GL_EXT_shader_image_load_store GL_EXT_shader_integer_mix GL_EXT_shadow_funcs GL_EXT_stencil_two_side GL_EXT_stencil_wrap GL_EXT_texture3D GL_EXT_texture_array GL_EXT_texture_buffer_object GL_EXT_texture_compression_dxt1 GL_EXT_texture_compression_latc GL_EXT_texture_compression_rgtc GL_EXT_texture_compression_s3tc GL_EXT_texture_cube_map GL_EXT_texture_edge_clamp GL_EXT_texture_env_combine GL_EXT_texture_env_dot3 GL_EXT_texture_filter_anisotropic GL_EXT_texture_integer GL_EXT_texture_lod GL_EXT_texture_lod_bias GL_EXT_texture_mirror_clamp GL_EXT_texture_object GL_EXT_texture_shared_exponent GL_EXT_texture_sRGB GL_EXT_texture_sRGB_decode GL_EXT_texture_storage GL_EXT_texture_swizzle GL_EXT_timer_query GL_EXT_transform_feedback2 GL_EXT_vertex_array GL_EXT_vertex_array_bgra GL_EXT_vertex_attrib_64bit GL_EXT_x11_sync_object GL_EXT_import_sync_object GL_IBM_rasterpos_clip GL_IBM_texture_mirrored_repeat GL_KHR_context_flush_control GL_KHR_debug GL_KHR_robust_buffer_access_behavior GL_KHR_robustness GL_KTX_buffer_region GL_NV_bindless_multi_draw_indirect GL_NV_bindless_multi_draw_indirect_count GL_NV_bindless_texture GL_NV_blend_equation_advanced GL_NV_blend_square GL_NV_command_list GL_NV_compute_program5 GL_NV_conditional_render GL_NV_copy_depth_to_color GL_NV_copy_image GL_NV_depth_buffer_float GL_NV_depth_clamp GL_NV_draw_texture GL_NV_ES1_1_compatibility GL_NV_ES3_1_compatibility GL_NV_explicit_multisample GL_NV_fence GL_NV_float_buffer GL_NV_fog_distance GL_NV_fragment_program GL_NV_fragment_program_option GL_NV_fragment_program2 GL_NV_framebuffer_multisample_coverage GL_NV_geometry_shader4 GL_NV_gpu_program4 GL_NV_gpu_program4_1 GL_NV_gpu_program5 GL_NV_gpu_program5_mem_extended GL_NV_gpu_program_fp64 GL_NV_gpu_shader5 GL_NV_half_float GL_NV_light_max_exponent GL_NV_multisample_coverage GL_NV_multisample_filter_hint GL_NV_occlusion_query GL_NV_packed_depth_stencil GL_NV_parameter_buffer_object GL_NV_parameter_buffer_object2 GL_NV_path_rendering GL_NV_pixel_data_range GL_NV_point_sprite GL_NV_primitive_restart GL_NV_register_combiners GL_NV_register_combiners2 GL_NV_shader_atomic_counters GL_NV_shader_atomic_float GL_NV_shader_buffer_load GL_NV_shader_storage_buffer_object GL_NV_texgen_reflection GL_NV_texture_barrier GL_NV_texture_compression_vtc GL_NV_texture_env_combine4 GL_NV_texture_multisample GL_NV_texture_rectangle GL_NV_texture_shader GL_NV_texture_shader2 GL_NV_texture_shader3 GL_NV_transform_feedback GL_NV_transform_feedback2 GL_NV_uniform_buffer_unified_memory GL_NV_vdpau_interop GL_NV_vertex_array_range GL_NV_vertex_array_range2 GL_NV_vertex_attrib_integer_64bit GL_NV_vertex_buffer_unified_memory GL_NV_vertex_program GL_NV_vertex_program1_1 GL_NV_vertex_program2 GL_NV_vertex_program2_option GL_NV_vertex_program3 GL_NVX_conditional_render GL_NVX_gpu_memory_info GL_NVX_nvenc_interop GL_NV_shader_thread_group GL_NV_shader_thread_shuffle GL_KHR_blend_equation_advanced GL_SGIS_generate_mipmap GL_SGIS_texture_lod GL_SGIX_depth_texture GL_SGIX_shadow GL_SUN_slice_accum 
00:00:20.701482 OpenGL Info: Render SPU: GL_VENDOR:   NVIDIA Corporation
00:00:20.701504 OpenGL Info: Render SPU: GL_RENDERER: GeForce GTX 670/PCIe/SSE2
00:00:20.701508 OpenGL Info: Render SPU: GL_VERSION:  4.5.0 NVIDIA 352.63
00:00:20.701510 OpenGL Info: Render SPU: GL_EXTENSIONS: GL_AMD_multi_draw_indirect GL_AMD_seamless_cubemap_per_texture GL_ARB_arrays_of_arrays GL_ARB_base_instance GL_ARB_bindless_texture GL_ARB_blend_func_extended GL_ARB_buffer_storage GL_ARB_clear_buffer_object GL_ARB_clear_texture GL_ARB_clip_control GL_ARB_color_buffer_float GL_ARB_compatibility GL_ARB_compressed_texture_pixel_storage GL_ARB_conservative_depth GL_ARB_compute_shader GL_ARB_compute_variable_group_size GL_ARB_conditional_render_inverted GL_ARB_copy_buffer GL_ARB_copy_image GL_ARB_cull_distance GL_ARB_debug_output GL_ARB_depth_buffer_float GL_ARB_depth_clamp GL_ARB_depth_texture GL_ARB_derivative_control GL_ARB_direct_state_access GL_ARB_draw_buffers GL_ARB_draw_buffers_blend GL_ARB_draw_indirect GL_ARB_draw_elements_base_vertex GL_ARB_draw_instanced GL_ARB_enhanced_layouts GL_ARB_ES2_compatibility GL_ARB_ES3_compatibility GL_ARB_ES3_1_compatibility GL_ARB_explicit_attrib_location GL_ARB_explicit_uniform_location GL_ARB_fragment_coord_conventions GL_ARB_fragment_layer_viewport GL_ARB_fragment_program GL_ARB_fragment_program_shadow GL_ARB_fragment_shader GL_ARB_framebuffer_no_attachments GL_ARB_framebuffer_object GL_ARB_framebuffer_sRGB GL_ARB_geometry_shader4 GL_ARB_get_program_binary GL_ARB_get_texture_sub_image GL_ARB_gpu_shader5 GL_ARB_gpu_shader_fp64 GL_ARB_half_float_pixel GL_ARB_half_float_vertex GL_ARB_imaging GL_ARB_indirect_parameters GL_ARB_instanced_arrays GL_ARB_internalformat_query GL_ARB_internalformat_query2 GL_NV_internalformat_sample_query GL_ARB_invalidate_subdata GL_ARB_map_buffer_alignment GL_ARB_map_buffer_range GL_ARB_multi_bind GL_ARB_multi_draw_indirect GL_ARB_multisample GL_ARB_multitexture GL_ARB_occlusion_query GL_ARB_occlusion_query2 GL_ARB_pipeline_statistics_query GL_ARB_pixel_buffer_object GL_ARB_point_parameters GL_ARB_point_sprite GL_ARB_program_interface_query GL_ARB_provoking_vertex GL_ARB_robust_buffer_access_behavior GL_ARB_robustness GL_ARB_sample_shading GL_ARB_sampler_objects GL_ARB_seamless_cube_map GL_ARB_seamless_cubemap_per_texture GL_ARB_separate_shader_objects GL_ARB_shader_atomic_counters GL_ARB_shader_bit_encoding GL_ARB_shader_draw_parameters GL_ARB_shader_group_vote GL_ARB_shader_image_load_store GL_ARB_shader_image_size GL_ARB_shader_objects GL_ARB_shader_precision GL_ARB_query_buffer_object GL_ARB_shader_storage_buffer_object GL_ARB_shader_subroutine GL_ARB_shader_texture_image_samples GL_ARB_shader_texture_lod GL_ARB_shading_language_100 GL_ARB_shading_language_420pack GL_ARB_shading_language_include GL_ARB_shading_language_packing GL_ARB_shadow GL_ARB_sparse_buffer GL_ARB_sparse_texture GL_ARB_stencil_texturing GL_ARB_sync GL_ARB_tessellation_shader GL_ARB_texture_barrier GL_ARB_texture_border_clamp GL_ARB_texture_buffer_object GL_ARB_texture_buffer_object_rgb32 GL_ARB_texture_buffer_range GL_ARB_texture_compression GL_ARB_texture_compression_bptc GL_ARB_texture_compression_rgtc GL_ARB_texture_cube_map GL_ARB_texture_cube_map_array GL_ARB_texture_env_add GL_ARB_texture_env_combine GL_ARB_texture_env_crossbar GL_ARB_texture_env_dot3 GL_ARB_texture_float GL_ARB_texture_gather GL_ARB_texture_mirror_clamp_to_edge GL_ARB_texture_mirrored_repeat GL_ARB_texture_multisample GL_ARB_texture_non_power_of_two GL_ARB_texture_query_levels GL_ARB_texture_query_lod GL_ARB_texture_rectangle GL_ARB_texture_rg GL_ARB_texture_rgb10_a2ui GL_ARB_texture_stencil8 GL_ARB_texture_storage GL_ARB_texture_storage_multisample GL_ARB_texture_swizzle GL_ARB_texture_view GL_ARB_timer_query GL_ARB_transform_feedback2 GL_ARB_transform_feedback3 GL_ARB_transform_feedback_instanced GL_ARB_transform_feedback_overflow_query GL_ARB_transpose_matrix GL_ARB_uniform_buffer_object GL_ARB_vertex_array_bgra GL_ARB_vertex_array_object GL_ARB_vertex_attrib_64bit GL_ARB_vertex_attrib_binding GL_ARB_vertex_buffer_object GL_ARB_vertex_program GL_ARB_vertex_shader GL_ARB_vertex_type_10f_11f_11f_rev GL_ARB_vertex_type_2_10_10_10_rev GL_ARB_viewport_array GL_ARB_window_pos GL_ATI_draw_buffers GL_ATI_texture_float GL_ATI_texture_mirror_once GL_S3_s3tc GL_EXT_texture_env_add GL_EXT_abgr GL_EXT_bgra GL_EXT_bindable_uniform GL_EXT_blend_color GL_EXT_blend_equation_separate GL_EXT_blend_func_separate GL_EXT_blend_minmax GL_EXT_blend_subtract GL_EXT_compiled_vertex_array GL_EXT_Cg_shader GL_EXT_depth_bounds_test GL_EXT_direct_state_access GL_EXT_draw_buffers2 GL_EXT_draw_instanced GL_EXT_draw_range_elements GL_EXT_fog_coord GL_EXT_framebuffer_blit GL_EXT_framebuffer_multisample GL_EXTX_framebuffer_mixed_formats GL_EXT_framebuffer_multisample_blit_scaled GL_EXT_framebuffer_object GL_EXT_framebuffer_sRGB GL_EXT_geometry_shader4 GL_EXT_gpu_program_parameters GL_EXT_gpu_shader4 GL_EXT_multi_draw_arrays GL_EXT_packed_depth_stencil GL_EXT_packed_float GL_EXT_packed_pixels GL_EXT_pixel_buffer_object GL_EXT_point_parameters GL_EXT_polygon_offset_clamp GL_EXT_provoking_vertex GL_EXT_rescale_normal GL_EXT_secondary_color GL_EXT_separate_shader_objects GL_EXT_separate_specular_color GL_EXT_shader_image_load_store GL_EXT_shader_integer_mix GL_EXT_shadow_funcs GL_EXT_stencil_two_side GL_EXT_stencil_wrap GL_EXT_texture3D GL_EXT_texture_array GL_EXT_texture_buffer_object GL_EXT_texture_compression_dxt1 GL_EXT_texture_compression_latc GL_EXT_texture_compression_rgtc GL_EXT_texture_compression_s3tc GL_EXT_texture_cube_map GL_EXT_texture_edge_clamp GL_EXT_texture_env_combine GL_EXT_texture_env_dot3 GL_EXT_texture_filter_anisotropic GL_EXT_texture_integer GL_EXT_texture_lod GL_EXT_texture_lod_bias GL_EXT_texture_mirror_clamp GL_EXT_texture_object GL_EXT_texture_shared_exponent GL_EXT_texture_sRGB GL_EXT_texture_sRGB_decode GL_EXT_texture_storage GL_EXT_texture_swizzle GL_EXT_timer_query GL_EXT_transform_feedback2 GL_EXT_vertex_array GL_EXT_vertex_array_bgra GL_EXT_vertex_attrib_64bit GL_EXT_x11_sync_object GL_EXT_import_sync_object GL_IBM_rasterpos_clip GL_IBM_texture_mirrored_repeat GL_KHR_context_flush_control GL_KHR_debug GL_KHR_robust_buffer_access_behavior GL_KHR_robustness GL_KTX_buffer_region GL_NV_bindless_multi_draw_indirect GL_NV_bindless_multi_draw_indirect_count GL_NV_bindless_texture GL_NV_blend_equation_advanced GL_NV_blend_square GL_NV_command_list GL_NV_compute_program5 GL_NV_conditional_render GL_NV_copy_depth_to_color GL_NV_copy_image GL_NV_depth_buffer_float GL_NV_depth_clamp GL_NV_draw_texture GL_NV_ES1_1_compatibility GL_NV_ES3_1_compatibility GL_NV_explicit_multisample GL_NV_fence GL_NV_float_buffer GL_NV_fog_distance GL_NV_fragment_program GL_NV_fragment_program_option GL_NV_fragment_program2 GL_NV_framebuffer_multisample_coverage GL_NV_geometry_shader4 GL_NV_gpu_program4 GL_NV_gpu_program4_1 GL_NV_gpu_program5 GL_NV_gpu_program5_mem_extended GL_NV_gpu_program_fp64 GL_NV_gpu_shader5 GL_NV_half_float GL_NV_light_max_exponent GL_NV_multisample_coverage GL_NV_multisample_filter_hint GL_NV_occlusion_query GL_NV_packed_depth_stencil GL_NV_parameter_buffer_object GL_NV_parameter_buffer_object2 GL_NV_path_rendering GL_NV_pixel_data_range GL_NV_point_sprite GL_NV_primitive_restart GL_NV_register_combiners GL_NV_register_combiners2 GL_NV_shader_atomic_counters GL_NV_shader_atomic_float GL_NV_shader_buffer_load GL_NV_shader_storage_buffer_object GL_NV_texgen_reflection GL_NV_texture_barrier GL_NV_texture_compression_vtc GL_NV_texture_env_combine4 GL_NV_texture_multisample GL_NV_texture_rectangle GL_NV_texture_shader GL_NV_texture_shader2 GL_NV_texture_shader3 GL_NV_transform_feedback GL_NV_transform_feedback2 GL_NV_uniform_buffer_unified_memory GL_NV_vdpau_interop GL_NV_vertex_array_range GL_NV_vertex_array_range2 GL_NV_vertex_attrib_integer_64bit GL_NV_vertex_buffer_unified_memory GL_NV_vertex_program GL_NV_vertex_program1_1 GL_NV_vertex_program2 GL_NV_vertex_program2_option GL_NV_vertex_program3 GL_NVX_conditional_render GL_NVX_gpu_memory_info GL_NVX_nvenc_interop GL_NV_shader_thread_group GL_NV_shader_thread_shuffle GL_KHR_blend_equation_advanced GL_SGIS_generate_mipmap GL_SGIS_texture_lod GL_SGIX_depth_texture GL_SGIX_shadow GL_SUN_slice_accum 
00:00:26.979187 GUI: UIMultiScreenLayout::update: GUI/AutomountGuestScreens is disabled
00:00:26.980496 Display::handleDisplayResize: uScreenId=0 pvVRAM=00007fb2f5121000 w=1400 h=947 bpp=32 cbLine=0x15E0 flags=0x1
00:00:26.980537 GUI: UIFrameBufferPrivate::NotifyChange: Screen=0, Origin=0x0, Size=1400x947, Sending to async-handler
00:00:26.982959 OpenGL: Set 3D content scale factor to (10000, 10000), multiplier 10000 (rc=VINF_SUCCESS)
00:00:26.983080 OpenGL: Set OpenGL scale policy on HiDPI displays (fUnscaledHiDPI=0)
00:00:27.020677 GUI: UIMachineViewSeamless::adjustGuestScreenSize: Adjust guest-screen size if necessary.
00:00:27.020699 GUI: UIMachineView::sltPerformGuestResize: Sending guest size-hint to screen 0 as 1920x1175
00:00:27.020739 VMMDev: SetVideoModeHint: Got a video mode hint (1920x1175x32)@(0x0),(1;0) at 0
00:00:27.021635 GUI: UIMediumEnumerator: Machine (or snapshot) event received, ID = e12b5e03-94d8-4a0d-a5e7-14cb607e22f9
00:00:27.021666 GUI: UIMediumEnumerator:  Old usage: 3bd9af4e-a992-4cad-bd69-ec4f4a7644bc, d1112e38-c573-4f39-b024-41f5a8e2e400
00:00:27.022776 OpenGL Warning: glXMakeCurrent(00007fb30450ca00, 0x4c00003, 00007fb3049db840) failed! (winId 2, ctxId 2)
00:00:27.022934 OpenGL Warning: glXMakeCurrent(00007fb30450ca00, 0x4c00005, 00007fb30451d1d0) failed! (winId 3, ctxId 1)
00:00:27.024247 GUI: UIMediumEnumerator:  New usage: 3bd9af4e-a992-4cad-bd69-ec4f4a7644bc, d1112e38-c573-4f39-b024-41f5a8e2e400
00:00:27.024288 GUI: UIMediumEnumerator:  Items currently in usage: 3bd9af4e-a992-4cad-bd69-ec4f4a7644bc, d1112e38-c573-4f39-b024-41f5a8e2e400
00:00:27.024383 GUI: UIMediumEnumerator: Machine (or snapshot) event processed, ID = e12b5e03-94d8-4a0d-a5e7-14cb607e22f9
00:00:27.024525 GUI: UIMachineView::sltHandleNotifyChange: Screen=0, Size=1400x947
00:00:27.024536 GUI: UIFrameBufferPrivate::handleNotifyChange: Size=1400x947
00:00:27.024549 GUI: UIFrameBufferPrivate::performResize: Size=1400x947, Directly using source bitmap content
00:00:27.025169 GUI: UIMachineView::sltPerformGuestResize: Sending guest size-hint to screen 0 as 1920x1175
00:00:27.025211 VMMDev: SetVideoModeHint: Got a video mode hint (1920x1175x32)@(0x0),(1;0) at 0
00:00:27.032546 GUI: UIMediumEnumerator: Medium-enumeration finished!
00:00:27.033922 VBVA: InfoScreen: [0] @0,0 1400x947, line 0x1e00, BPP 32, flags 0x1
00:00:27.033969 Display::handleDisplayResize: uScreenId=0 pvVRAM=00007fb2f5121000 w=1400 h=947 bpp=32 cbLine=0x1E00 flags=0x1
00:00:27.034030 GUI: UIFrameBufferPrivate::NotifyChange: Screen=0, Origin=0x0, Size=1400x947, Sending to async-handler
00:00:27.034109 GUI: UIMachineView::sltHandleNotifyChange: Screen=0, Size=1400x947
00:00:27.034123 GUI: UIFrameBufferPrivate::handleNotifyChange: Size=1400x947
00:00:27.034140 GUI: UIFrameBufferPrivate::performResize: Size=1400x947, Directly using source bitmap content
00:00:27.035915 VBVA: InfoScreen: [0] @0,0 1920x1175, line 0x1e00, BPP 32, flags 0x1
00:00:27.035961 Display::handleDisplayResize: uScreenId=0 pvVRAM=00007fb2f5121000 w=1920 h=1175 bpp=32 cbLine=0x1E00 flags=0x1
00:00:27.035990 GUI: UIFrameBufferPrivate::NotifyChange: Screen=0, Origin=0x0, Size=1920x1175, Sending to async-handler
00:00:27.036014 GUI: UIMachineView::sltHandleNotifyChange: Screen=0, Size=1920x1175
00:00:27.036026 GUI: UIFrameBufferPrivate::handleNotifyChange: Size=1920x1175
00:00:27.036037 GUI: UIFrameBufferPrivate::performResize: Size=1920x1175, Directly using source bitmap content
00:00:27.096909 OpenGL Warning: glXMakeCurrent(00007fb30450ca00, 0x4c00003, 00007fb3049db840) failed! (winId 2, ctxId 2)
00:00:27.097017 OpenGL Warning: glXMakeCurrent(00007fb30450ca00, 0x4c00005, 00007fb30451d1d0) failed! (winId 3, ctxId 1)
00:00:27.097088 OpenGL Warning: glXMakeCurrent(00007fb30450ca00, 0x4c00003, 00007fb3049db840) failed! (winId 2, ctxId 2)
00:00:27.097126 OpenGL Warning: glXMakeCurrent(00007fb30450ca00, 0x4c00005, 00007fb30451d1d0) failed! (winId 3, ctxId 1)
00:00:27.097160 OpenGL Warning: glXMakeCurrent(00007fb30450ca00, 0x4c00003, 00007fb3049db840) failed! (winId 2, ctxId 2)
00:00:27.097189 OpenGL Warning: glXMakeCurrent(00007fb30450ca00, 0x4c00005, 00007fb30451d1d0) failed! (winId 3, ctxId 1)
00:00:27.097219 OpenGL Warning: glXMakeCurrent(00007fb30450ca00, 0x4c00003, 00007fb3049db840) failed! (winId 2, ctxId 2)
00:00:27.097247 OpenGL Warning: glXMakeCurrent(00007fb30450ca00, 0x4c00005, 00007fb30451d1d0) failed! (winId 3, ctxId 1)
00:00:27.097257 OpenGL Warning: FBO status(0x0) isn't complete
00:00:27.097261 OpenGL Warning: FBO status(0x0) isn't complete
00:00:27.097265 OpenGL Warning: Assertion failed: mural->aidColorTexs[CR_SERVER_FBO_FB_IDX(mural)]=0, file /home/vbox/vbox-5.0.18/src/VBox/HostServices/SharedOpenGL/crserverlib/server_muralfbo.cpp, line 615
00:00:27.097576 OpenGL Warning: glXMakeCurrent(00007fb30450ca00, 0x4c00005, 00007fb30451d1d0) failed! (winId 3, ctxId 1)
00:00:27.109541 OpenGL Warning: GenFramebuffersEXT failed!

I have cut out the rest of the log for brevity, but can include more if anything relevant is missing. I am assuming that a code assertion may be failing and causing the crash, but there is nothing in the log (what is above does include the end of the log) to explain in more detail. Any ideas?

I note the first line shows:

Code: Select all

Guest Additions capability report: (0x0 -> 0x0) seamless: no, hostWindowMapping: no, graphics: no

Which would imply that seamless mode is not supported. It would be good to know why this is the case, but even so the VM should not crash when seamless mode is enabled.

[mpack]

Partial (pasted) logs are not very useful. Please post a complete VM log file.

With the VM fully shut down, right click and "Show Log" in the GUI, save "VBox.log" (ONLY) to a zip, and attach the zip here.

[mdsystems]

Thank you for taking the time to comment. As requested, the full log is attached.

[mpack]

00:00:01.298469 VRamSize <integer> = 0x0000000000c00000 (12 582 912, 12 MB)

12MB is rather a small amount of graphics RAM. Surely VirtualBox is giving you warnings about this in the settings dialogs?

12MB may not be enough to handle seamless or fullscreen graphics modes. ISTM that on a host with 30GB available RAM you can easily afford 256MB simulated VRAM for the guest, plus one or two GBs RAM for the guest OS.

If you still get problems then the next thing to try is to disable 3D acceleration.

[mdsystems]

Thanks for the response.

Without 3d acceleration it works fine (as mentioned in the initial post). I tried a number of settings, peaking at the maximum 128MB and it survives the transition into seamless mode a little longer, but fails when switched back. In case there is additional information, I have attached the most recent log.

[mpack]

128MB is probably fine, but the trick for getting 256MB is to select two monitors, select 256MB, then switch back to one monitor.

As to the crash: the likely options were bug in host OpenGL drivers, or insufficient RAM (the crash is also a bug, but a reasonable one: nobody expects a modern graphics card to have 12MB VRAM). If we now exclude VRAM as the (sole) explanation then we're left with buggy host drivers. You might want to check for updates to the latter.

[mdsystems]

Setting 2 monitors does not let me increase the RAM beyond 128MB. I have taken a look at the drivers in use on the Linux VM and for some reason it looks as though version 4 drivers are currently active, even though the latest guest utilities were installed (the ones matching the installation of Virtualbox). I am going to look into why this is the case, as I imagine the difference in version numbers is more likely to be the cause of issues.

Will update this post once I have checked.

Thanks again for your further assistance.

[mpack]

I referred to host graphics drivers, not guest drivers. The guest drivers are provided by the GAs.

[mdsystems]

Yes, I appreciate that. However, if for some reason the VM is using mismatched or out-of-date drivers I would imagine it could also cause a problem. I am going to check what version drivers are actually installed and operational before I go any further.

[mdsystems]

Having checked again, the drivers do appear to be current so it is not that. I think the easiest option for what I want to achieve will be to use X11 forwarding. I have tried it and it works just fine. Waiting until either the Mint distro provides updated NVidia drivers or Virtualbox addresses the issue is not really an option, nor is using software rendering in Cinnamon.

Thanks for trying to help, mpack. Much appreciated.