Black window with glxgears and `__NV_PRIME_RENDER_OFFLOAD=1 __GLX_VENDOR_LIBRARY_NAME=nvidia`

Graphics / Linux Linux
, ,
1

Hi,

Running __NV_PRIME_RENDER_OFFLOAD=1 __GLX_VENDOR_LIBRARY_NAME=nvidia glxgears randomly either shows a black window or the gears graphics (black window most of the time). Runnig glxgears always shows the gears graphics. I am connected to a Linux server from my Windows desktop through the Remote Desktop Connection application.

Settings of Linux server:

  • Ubuntu 20.04.6 LTS
  • cat /proc/driver/nvidia/version
NVRM version: NVIDIA UNIX x86_64 Kernel Module  570.133.20  Sun Apr 13 04:50:56 UTC 2025
GCC version:  gcc version 9.4.0 (Ubuntu 9.4.0-1ubuntu1~20.04.2)
  • glxinfo | grep OpenGL
OpenGL vendor string: Mesa/X.org
OpenGL renderer string: llvmpipe (LLVM 12.0.0, 256 bits)
OpenGL core profile version string: 4.5 (Core Profile) Mesa 21.2.6
OpenGL core profile shading language version string: 4.50
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile
OpenGL core profile extensions:
OpenGL version string: 3.1 Mesa 21.2.6
OpenGL shading language version string: 1.40
OpenGL context flags: (none)
OpenGL extensions:
OpenGL ES profile version string: OpenGL ES 3.2 Mesa 21.2.6
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.20
OpenGL ES profile extensions:
  • __NV_PRIME_RENDER_OFFLOAD=1 __GLX_VENDOR_LIBRARY_NAME=nvidia glxinfo | grep OpenGL
OpenGL vendor string: NVIDIA Corporation
OpenGL renderer string: Quadro P6000/PCIe/SSE2
OpenGL core profile version string: 4.6.0 NVIDIA 570.133.20
OpenGL core profile shading language version string: 4.60 NVIDIA
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile
OpenGL core profile extensions:
OpenGL version string: 4.6.0 NVIDIA 570.133.20
OpenGL shading language version string: 4.60 NVIDIA
OpenGL context flags: (none)
OpenGL profile mask: (none)
OpenGL extensions:
OpenGL ES profile version string: OpenGL ES 3.2 NVIDIA 570.133.20
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.20
OpenGL ES profile extensions:
  • nvidia-smi
+-----------------------------------------------------------------------------------------+
| NVIDIA-SMI 570.133.20             Driver Version: 570.133.20     CUDA Version: 12.8     |
|-----------------------------------------+------------------------+----------------------+
| GPU  Name                 Persistence-M | Bus-Id          Disp.A | Volatile Uncorr. ECC |
| Fan  Temp   Perf          Pwr:Usage/Cap |           Memory-Usage | GPU-Util  Compute M. |
|                                         |                        |               MIG M. |
|=========================================+========================+======================|
|   0  Quadro P6000                   Off |   00000000:21:00.0 Off |                  Off |
| 36%   69C    P0             30W /  250W |    5833MiB /  24576MiB |     0%      Default |
|                                         |                        |                  N/A |
+-----------------------------------------+------------------------+----------------------+
                                                                                         
+-----------------------------------------------------------------------------------------+
| Processes:                                                                              |
|  GPU   GI   CI              PID   Type   Process name                        GPU Memory |
|        ID   ID                                                               Usage      |
|=========================================================================================|
+-----------------------------------------------------------------------------------------+
  • lsmod | grep nvidia
nvidia_uvm           1773568  18
nvidia_drm            110592  4
nvidia_modeset       1536000  6 nvidia_drm
nvidia              89915392  302 nvidia_uvm,nvidia_modeset
drm_kms_helper        311296  3 nvidia_drm
drm                   618496  8 drm_kms_helper,nvidia,nvidia_drm
  • ls -l /usr/share/X11/xorg.conf.d/
total 84
drwxr-xr-x 2 root root  4096 Apr 23  2020 app-defaults
drwxr-xr-x 2 root root  4096 Apr 23  2020 cursors
-rw-r--r-- 1 root root    15 Apr 23  2020 default-display-manager
drwxr-xr-x 4 root root  4096 Apr 23  2020 fonts
-rw-r--r-- 1 root root 17394 Jan 20  2017 rgb.txt
drwxr-xr-x 2 root root  4096 Nov 19  2020 xinit
drwxr-xr-x 2 root root  4096 Feb 29  2020 xkb
drwxr-xr-x 2 root root  4096 Jul 31  2020 xrdp
-rwxr-xr-x 1 root root   709 Jan 20  2017 Xreset
drwxr-xr-x 2 root root  4096 Apr 23  2020 Xreset.d
drwxr-xr-x 2 root root  4096 Apr 23  2020 Xresources
-rwxr-xr-x 1 root root  3730 Dec 14  2018 Xsession
drwxr-xr-x 2 root root  4096 May 27 15:58 Xsession.d
-rw-r--r-- 1 root root   265 Jan 20  2017 Xsession.options
drwxr-xr-x 2 root root  4096 Apr 23  2020 xsm
-rw-r--r-- 1 root root    13 Feb 29  2020 XvMCConfig
-rw-r--r-- 1 root root   630 Apr 23  2020 Xwrapper.config
  • ls -l /usr/share/X11/xorg.conf.d/
total 28
-rw-r--r-- 1 root root   92 Aug 24  2022 10-amdgpu.conf
-rw-r--r-- 1 root root  206 Apr 13 10:03 10-nvidia.conf
-rw-r--r-- 1 root root 1350 Mar  4 06:35 10-quirks.conf
-rw-r--r-- 1 root root   92 Oct 22  2019 10-radeon.conf
-rw-r--r-- 1  201  201  475 Jun 22  2023 20-vmware-hid.conf
-rw-r--r-- 1 root root 1429 Aug 13  2019 40-libinput.conf
-rw-r--r-- 1 root root 3458 Mar 11  2020 70-wacom.conf
  • cat /usr/share/X11/xorg.conf.d/10-nvidia.conf
Section "OutputClass"
    Identifier "nvidia"
    MatchDriver "nvidia-drm"
    Driver "nvidia"
    Option "AllowEmptyInitialConfiguration"
    ModulePath "/usr/lib/x86_64-linux-gnu/nvidia/xorg"
EndSection
  • xrandr --listproviders
Providers: number : 0
  • __NV_PRIME_RENDER_OFFLOAD=1 __GLX_VENDOR_LIBRARY_NAME=nvidia xrandr --listproviders
Providers: number : 0
2

Using an X11 server (e.g. MobaXterm) with X11-forwarding solves the problem. [Connecting with ssh -X did not work though.] It now consistently shows the gears graphics, no black window anymore.

3

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