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est921
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Joined: 20 Dec 2015
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PostPosted: Thu Oct 18, 2018 7:23 pm    Post subject: Can't get 3d accelleration to work Reply with quote

I have followed the wiki to the best of my ability but 3d acceleration does not work. Glxinfo only returns
Code:
name of display: :0
Error: couldn't find RGB GLX visual or fbconfig


I used eselect opengl to set the opengl interface to nvidia but I must have missed something else, not sure what.

My Xorg.0.log is here: https://paste.pound-python.org/show/KMbALqvj4123Wkn5ao7j/

To me, the most interesting line is
Code:

[  2664.917] (II) NVIDIA GLX Module  410.57  Tue Sep 18 23:27:13 CDT 2018
[  2664.917] (EE) Can't find the server GLX vendor interface.

But using google I only find people on the legacy drivers who run into that message.
Also, the graphics information section in the nvidia-settings program is completely empty.
Does anyone know what is wrong?
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log_null
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Joined: 28 Nov 2011
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PostPosted: Thu Oct 18, 2018 9:52 pm    Post subject: Reply with quote

You can get more information enabling libgl debug to get more clues:

Code:

LIBGL_DEBUG=verbose


Verify if your Xorg is loading the correct libglx ( sometimes the installer can leave more than one version ).
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est921
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PostPosted: Fri Oct 19, 2018 3:57 pm    Post subject: Reply with quote

Where am I supposed to set the LIBGL_DEBUG variable? Before starting X? Before runnig glxinfo? Neither seems to do anything. The only glx I can see references to in the Xorg log is the nvidia one, are there any other log files I could check?
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Jaglover
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PostPosted: Fri Oct 19, 2018 4:07 pm    Post subject: Reply with quote

FWIW, 410.57 is tagged as beta, 410.66 is not.
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est921
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PostPosted: Fri Oct 19, 2018 6:05 pm    Post subject: Reply with quote

I updated to the 410.66 drivers but unfortunately nothing has changed
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Hu
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PostPosted: Fri Oct 19, 2018 10:35 pm    Post subject: Reply with quote

est921 wrote:
Where am I supposed to set the LIBGL_DEBUG variable?
LIBGL_DEBUG is a Mesa construct. Non-Mesa OpenGL implementations may or may not react to it.
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est921
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PostPosted: Sun Oct 21, 2018 11:55 am    Post subject: Reply with quote

Oh, ok. Do you know if nvidia has some sort of equivalent?
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Hu
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PostPosted: Sun Oct 21, 2018 6:07 pm    Post subject: Reply with quote

I do not use the proprietary nVidia drivers. Can you reproduce the problem when using the open source driver?
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est921
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PostPosted: Mon Oct 22, 2018 1:19 pm    Post subject: Reply with quote

No, things worked fine on the Nouveau. However I also managed to solve the problem by downgrading to Xorg-server 1.19.5-r2. So i guess I'll stay on Xorg 1.19.x for now and see if the problem has been fixed when 1.19 gets removed from gentoo
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Skotlex
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PostPosted: Tue Dec 25, 2018 10:38 pm    Post subject: Reply with quote

Not to bump, but I also ran into this bug recently, and also downgrading from Xorg-server 1.20.3 to 1.19.5-r2 worked.

However, I was running on version 1.20.3 for a few weeks, and it was working, but that was before upgrading my kernel to 4.14.83 (from 4.14.65) and my nvidia-drivers to 415.18 (I don't know which was the stable driver version before this one).

So it might be a particular issue between the drivers 415.18 and xorg 1.20.3. Since the X log is not more informative, nor is the nvidia-driver, there isn't much to go along to figure out what's causing this issue.
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est921
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PostPosted: Sun Dec 30, 2018 8:26 pm    Post subject: Reply with quote

Interesting, as I wrote before I had problems with 410.x drivers. I'm a bit hesitant about updating in case things break again and now <xorg-server-1.20 appears to be masked in portage. Did you figure out what was actually causing the problems or any workarounds on the affected drivers? I can't find much on google
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Skotlex
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PostPosted: Sun Apr 28, 2019 3:41 am    Post subject: Reply with quote

est921 wrote:
Interesting, as I wrote before I had problems with 410.x drivers. I'm a bit hesitant about updating in case things break again and now <xorg-server-1.20 appears to be masked in portage. Did you figure out what was actually causing the problems or any workarounds on the affected drivers? I can't find much on google


Today update world upgraded my xorg-server to version 1.20.4, I had forgotten about this bug until it came back. Worse, now I can't rollback to a previous xorg version as portage only has the ebuilds for versions 1.20.3 and 1.20.4

I have no idea what to do, and I find it weird that there hasn't been more bug reports about this. Since it's an unsupported package, we may be stuck, need to change to wayland, or change to nouveau?
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Pearlseattle
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PostPosted: Sun Apr 28, 2019 6:08 pm    Post subject: Reply with quote

Did you upgrade as well your nvidia-drivers?
I see that your GTX 780 should be supported as well by the 415.x and 418.x drivers (and 390.x) => maybe it's worth trying them all out.

https://www.nvidia.com/Download/driverResults.aspx/141847/en-us
https://www.nvidia.com/Download/driverResults.aspx/145182/en-us

I will soon have to upgrade as well (GTX 760)... :?

EDIT: maybe this is related https://bbs.archlinux.org/viewtopic.php?id=237045
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Skotlex
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PostPosted: Mon Apr 29, 2019 1:35 am    Post subject: Reply with quote

Pearlseattle wrote:
Did you upgrade as well your nvidia-drivers?
I see that your GTX 780 should be supported as well by the 415.x and 418.x drivers (and 390.x) => maybe it's worth trying them all out.

Of course it was updated as well. Today, while trying to setup wayland to see if that'd help, I figured out a workaround. My xorg-server only fails to load the NVIDIA glx module when it was compiled with the minimal USE flag. I removed minimal from xorg-server and it works again just fine.

Code:

> emerge -pv xorg-server nvidia-drivers

These are the packages that would be merged, in reverse order:

Calculating dependencies... done!
[ebuild   R    ] x11-drivers/nvidia-drivers-418.56:0/418::gentoo  USE="X acpi driver gtk3 kms multilib tools -compat -static-libs -uvm -wayland" ABI_X86="(64) -32 (-x32)" 0 KiB
[ebuild   R    ]  x11-base/xorg-server-1.20.4:0/1.20.4::gentoo  USE="ipv6 suid udev xorg -debug -dmx -doc -elogind -glamor -kdrive -libressl -minimal (-selinux) -static-libs -systemd -unwind -wayland -xcsecurity -xephyr -xnest -xvfb" 0 KiB


This might actually be an xorg-server bug then, if it only happens when compiling with the minimum USE flag.
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