- VirtualBox 7.0.12, with matching Extensions/Guest Additions installed
- Windows 11 Host
- Linux Ubuntu Guest (details below)
- VMSVGA displays in VirtualBox, no 3D acceleration. Full Screen. 1-2 monitors, 64 MB Video Memory, Scale Factor 100%
Everything was working fine. When I attempted an upgrade today to the offered 6.5.0-14 kernel...% uname -a
Linux congas 6.2.0-39-generic #40~22.04.1-Ubuntu SMP PREEMPT_DYNAMIC Thu Nov 16 10:53:04 UTC 2 x86_64 x86_64 x86_64 GNU/Linux
% lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 22.04.3 LTS
Release: 22.04
Codename: jammy
...the display took a holiday. Some boot attempts wouldn't allow me to use the cursor (just a purple or black box) or log in, others had the screen flashing/redrawing itself all over the place.The following NEW packages will be installed:
linux-headers-6.5.0-14-generic linux-hwe-6.5-headers-6.5.0-14
linux-image-6.5.0-14-generic linux-modules-6.5.0-14-generic
linux-modules-extra-6.5.0-14-generic
The following packages have been kept back:
transmission-common transmission-gtk
The following packages will be upgraded:
dnsmasq-base libc-bin libc-dev-bin libc6 libc6:i386 libc6-dbg libc6-dev
linux-generic-hwe-22.04 linux-headers-generic-hwe-22.04
linux-image-generic-hwe-22.04 locales python3-update-manager update-manager
update-manager-core
14 upgraded, 5 newly installed, 0 to remove and 2 not upgraded.
10 standard LTS security updates
Need to get 161 MB of archives.
After this operation, 721 MB of additional disk space will be used.
Do you want to continue? [Y/n] yes
There was an error during boot, which is likely of interest. (Sorry, hand typing this in. Any typos are mine. )
I have a picture, but can't get it under 128kb.[ 3.663400] vmwgfx 0000:00:0Z.0 [drm] *ERROR* vmwgfx seems to be running on an unsupported hypervisor.
[ 3.663412] vmwgfx 0000:00:0Z.0 [drm] *ERROR* This configuration is likely broken.
[ 3.663412] vmwgfx 0000:00:0Z.0 [drm] *ERROR* Please switch to a supported graphics device to avoid problems.
...deleted...
[ 3.663412] UBSAN: array-index-out-of-bounds in /tmp/vbox.0/common/log/log.c41
[ 3.663412] index 1 is out of range for type 'uint32-t [1]'
...deleted...
[ 3.663412] UBSAN: array-index-out-of-bounds in /tmp/vbox.0/common/log/log.c:551:41
[ 3.663412] index 32 is out of range for type 'uint32-t [1]'
...deleted...
[ 3.663412] UBSAN: array-index-out-of-bounds in /tmp/vbox.0/common/log/log.c:4161:34
[ 3.663412] index 32 is out of range for type 'uint32-t [1]'
When tried to switch to one of the other display options, the interface complained about invalid settings detected, and the GUI output was much worse.
When I turned on 3D acceleration, the GUI worked normally(?), but still had the boot errors above.
Using `grub`, I was able to downgrade the kernel to 6.2.0-39, and all was right again.
It sounds similar to https://www.reddit.com/r/virtualbox/com ... el_update/ , but there was nothing conclusive in that thread.
The first three lines are apparently from the Linux vmwgfx GPU drivers. https://github.com/torvalds/linux/blob/ ... wgfx_drv.c