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[Worked around] 3D acceleration not working on Centos7 guest after 6.0 upgrade

PostPosted: 20. Feb 2019, 11:57
by L-B
Hello all,

After the upgrade to VirtualBox 6, 3D acceleration is not working anymore in Cinnamon running on CentOS 7.6. Sadly, I can't pinpoint exactly when that happened, since I had to use Xfce right after the 6.0.0 upgrade from 5, due to an unrelated issue in EPEL repositories.
I'm currently running 6.0.4, the guest additions installed fine, the 3D tick box is checked in the VM configuration, and using VboxVGA (VboxSVGA doesn't work for me).
The host is running Windows 7.

I'm attaching the log if it helps, anything else I can do to diagnose the issue?

Thanks in advance,

Laurent

Re: 3D acceleration not working on Centos7 guest after 6.0 upgrade

PostPosted: 24. Feb 2019, 10:22
by socratis
00:00:02.910322 OpenGL Info: Render SPU: GL_VENDOR:   Intel
00:00:02.910338 OpenGL Info: Render SPU: GL_RENDERER: Intel(R) HD Graphics 2500
00:00:02.910347 OpenGL Info: Render SPU: GL_VERSION: 4.0.0 - Build 10.18.10.5059
That's the only thing I could find marginally wrong with your setup. I couldn't see anything else...

BTW, for future reference, you should completely shut down the VM before grabbing the VBox.log, or any other log.

Speaking of logs, can you ZIP and attach the VBoxHardening.log from a complete VM run? Start the VM from cold boot/log in/shut down the VM completely, then grab the log...

Re: 3D acceleration not working on Centos7 guest after 6.0 upgrade

PostPosted: 25. Feb 2019, 11:30
by L-B
socratis wrote:That's the only thing I could find marginally wrong with your setup. I couldn't see anything else...

Wrong in that it's old? Agreed, the replacement process has been protracted. But it used to work, and wouldn't the GUI tell me if it were insufficient?

BTW, for future reference, you should completely shut down the VM before grabbing the VBox.log, or any other log.

Good point, sorry about that.

Speaking of logs, can you ZIP and attach the VBoxHardening.log from a complete VM run? Start the VM from cold boot/log in/shut down the VM completely, then grab the log...

I'm attaching both files, freshly generated.

Thanks,

Laurent

Re: 3D acceleration not working on Centos7 guest after 6.0 upgrade

PostPosted: 6. Jun 2019, 10:36
by L-B
FWIW: after my host workstation was *finally* upgraded to something more recent running Windows 10, it started to work, as in, Cinnamon is not complaining anymore of lack of 3D acceleration.
So, it seems to be a case of Virtualbox not being able to use my hardware because it was too old, but failing to report it.

Though honestly, now that acceleration is supposedly enabled, it's barely faster. I know it's still only an integrated Intel GPU, but I'm not trying to play an AAA game here, just running a desktop, and that feels slow, with window redraws sometimes taking seconds.
Even the FPS shown by glxgears are just the same as before.
Anyhow, using a terminal is better though, so that's good enough at this point to keep working.

Laurent

Re: 3D acceleration not working on Centos7 guest after 6.0 upgrade

PostPosted: 6. Jun 2019, 10:57
by socratis
L-B wrote:as in, Cinnamon is not complaining anymore of lack of 3D acceleration.
Cool, I'll mark this as [Resolved] then...

L-B wrote:So, it seems to be a case of Virtualbox not being able to use my hardware because it was too old, but failing to report it.
No, I think you got it wrong; VirtualBox *did* find your hardware and *did* report it. The fact that the hardware was crappy was the problem...

L-B wrote:with window redraws sometimes taking seconds.
Unless you're talking about a 3D application, that observation is moot...

Re: 3D acceleration not working on Centos7 guest after 6.0 upgrade

PostPosted: 6. Jun 2019, 17:23
by L-B
socratis wrote:Cool, I'll mark this as [Resolved] then...

I've taken the liberty to modify that to [worked around], since really, I don't consider than an hardware change is a fix to a regression.

socratis wrote:No, I think you got it wrong; VirtualBox *did* find your hardware and *did* report it. The fact that the hardware was crappy was the problem...

It's still a behaviour specific to VirtualBox 6, since as I said, that happened only after I upgraded, So, no, I don't believe I got it wrong. At the *very least*, it's now reporting it differently than the previous version did.

socratis wrote:Unless you're talking about a 3D application, that observation is moot...

Both glxgears and Cinnamon are 3D applications, yes.

Re: [Worked around] 3D acceleration not working on Centos7 guest after 6.0 upgrade

PostPosted: 6. Jun 2019, 19:00
by socratis
L-B wrote:I've taken the liberty to modify that to [worked around]
It's not one of the "standard" resolutions that I use ([FalsePositive], [NotSupported], [NotSupported/Working], [HowTo], [Fixed], [Invalid], [Resolved], [WorksForMe], [Solved]), but I guess there's always room for improvement... ;)

L-B wrote:since really, I don't consider than an hardware change is a fix to a regression
L-B wrote:that happened only after I upgraded
Can you downgrade and see if the issue goes away? That would be really a big surprise, and that definitely would require more actions, like a ticket!

L-B wrote:At the *very least*, it's now reporting it differently than the previous version did.
I'm not sure I follow this. What's being reported differently? The GPU in the VBox.log?