Ubuntu 18.04 guest, Windows 10 host 3D acceleration problems

[KevinM1]

When I try using VMSVGA with 3D Acceleration checked, I get a black screen. When I try using VboxSVGA, Cinnamon tells me that it's running in software rendering mode rather than using 3D acceleration. When checking in VboxSVGA, I get the following:

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$ lsmod | grep vbox
vboxvideo              36864  2
ttm                   106496  1 vboxvideo
drm_kms_helper        172032  1 vboxvideo
drm                   401408  5 drm_kms_helper,vboxvideo,ttm
vboxguest             335872  4

Guest Additions are installed:

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$ VBoxControl -version
6.0.12r133076

My physical machine is a bit older, but it does have a GeForce GTX 660 with the latest drivers installed, so it should be able to handle 3D acceleration just fine.

I'd like to upload my logs, but the forum is telling me they're too big (each are ~167 KiB while the forum has a limit of 128). Any suggestions on where I should host them?

[socratis]

When I try using VMSVGA with 3D Acceleration checked, I get a black screen

Just on a hunch, is your "VM Settings" » "Display" » "Screen" » "Video Memory" maxed out at 128 MB?

When checking in VboxSVGA, I get the following

Same here, I don't see all the kernel modules that I was expecting, because I don't believe that you have any VirtualBox Shared Folders loaded. This is what I get from my 18.04 VM:

socratis@VB-Ubuntu-1804:~$ lsmod | grep vbox
vboxsf                 77824  1
vboxvideo              36864  3
ttm                   106496  1 vboxvideo
drm_kms_helper        172032  1 vboxvideo
drm                   401408  6 drm_kms_helper,vboxvideo,ttm
vboxguest             344064  7 vboxsf
socratis@VB-Ubuntu-1804:~$

I'd like to upload my logs, but the forum is telling me they're too big

Ever considered the "ZIP the logs" option?

[KevinM1]

Ah, yes, my video memory is maxed out at 128 MB. I'm guessing it shouldn't be.

Zipping files... what kind of new, fancy pants technology is that?

EDIT: I'm a bit confused by what you mean about shared folders in this context.

[socratis]

00:00:02.777745 [/Devices/ahci/0/LUN#0/Config/Parent/Parent/Parent/Parent/Parent/Parent/Parent/Parent/Parent/]
                (level 14)

Read "Snapshot basics" to get a better picture of what snapshots are, how they operate, and why it's not the greatest idea in the world to have them piling up.

Other than that, I don't really see anything out of the ordinary in your log. The only reason I could see that sort of behavior would be if your GPU drivers were rejected due to a hardening error, but I don't even see that...

Re: Shared Folders. I have an extra "vboxsf" kernel module loaded in my configuration and you don't. That's because I do in fact use a VirtualBox Shared Folder, and you don't. Expected...