With Nvidia driver 550.120-27.1 on Gnome starting apps on the discrete GPU (Right Click + Launch using Discrete Graphics Card) doesn’t work, app doesn’t show on nvidia-smi like in:
LT-B:~ # nvidia-smi
Fri Oct 4 14:03:21 2024
+-----------------------------------------------------------------------------------------+
| NVIDIA-SMI 550.107.02 Driver Version: 550.107.02 CUDA Version: 12.4 |
|-----------------------------------------+------------------------+----------------------+
| 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 NVIDIA GeForce GTX 960M Off | 00000000:01:00.0 Off | N/A |
| N/A 30C P8 N/A / 200W | 35MiB / 4096MiB | 0% Default |
| | | N/A |
+-----------------------------------------+------------------------+----------------------+
+-----------------------------------------------------------------------------------------+
| Processes: |
| GPU GI CI PID Type Process name GPU Memory |
| ID ID Usage |
|=========================================================================================|
| 0 N/A N/A 3488 G /usr/bin/gnome-shell 1MiB |
| 0 N/A N/A 7789 C+G /usr/bin/gnome-text-editor 27MiB |
+-----------------------------------------------------------------------------------------+
LT-B:~ #
LibreOffice Calc refuses to use OpenCL.
I remember seeing a warning (“Couldn’t run a post-transaction script, see logs…”) during upgrade to 550.120, but couldn’t find anything meaningful in the logs.
Forced reinstall of all Nvidia packages didn’t help either.
Gnome-shell apparently used render offload and GLX apparently worked, so maybe there is some link missing or wrong in the CUDA or OpenCL areas.
Back to 550.107 and locked for the time being.
(Not really a request for help, more a heads-up to interested users)
Thanks for the reference. My problem looks a bit different, but going through the bug report I checked that with 550.107 some nvidia modules are included in the initrd:
while according to Stefan no kernel module should be included with 550.120.
Maybe the exact sequence of uninstall, (update initrd?), upgrade, update initrd (again?) etc. might leave some leftover somewhere and a full uninstall then install upgraded helps…
Currently 550.120 offers no gain to this system, so I’m happy with 550.107 for the time being and will check again with the next nvidia upgrade.
and I’m back to the original post (no openCL, no right-click using dGPU…).
Tried the remedy in post #2 to no avail.
Tried to rebuild the initrd in every known (to me) mode, even removing the original file and building from scratch and naaaay.
GL sort of works, even if glxinfo spits something new to me:
bruno@LT-B:~> DRI_PRIME=1 glxinfo |grep renderer
glx: failed to create dri3 screen
failed to load driver: nouveau
MESA-INTEL: warning: Haswell Vulkan support is incomplete
GLX_MESA_copy_sub_buffer, GLX_MESA_gl_interop, GLX_MESA_query_renderer,
GLX_MESA_query_renderer, GLX_MESA_swap_control, GLX_SGIS_multisample,
Extended renderer info (GLX_MESA_query_renderer):
OpenGL renderer string: zink Vulkan 1.3(NVIDIA GeForce GTX 960M (NVIDIA_PROPRIETARY))
bruno@LT-B:~>
Video HW decoding apparently works.
Nvidia modules are loaded and work, but something changed between 550.107 and 550.120 that Gnome and libreoffice don’t like.
Just seen that Nvidia driver updated to 550.127.05, so “zypper dup” and… still broken.
But this time i tried harder and since clinfo found no available platform due to no libOpenCL1.so being found, I force reinstalled libOpenCL1
LT-B:~ # zypper in --force libOpenCL1
After that clinfo found the Nvidia CUDA platform and Libreoffice Calc was able to use OpenCL again. Darktable also was able to find and use OpenCL, so I’m fine for my current needs.
What is still intriguing is that “Launch with Discrete Graphics Card” in Gnome is still missing.
To be double sure I forced reinstall switcheroo-control too:
LT-B:~ # zypper in --force switcherooctl
To be fair, it is possible to launch “foreign” apps like Firefox on the dGPU, but no way with “native” Gnome apps like totem, gnome-text-editor, nautilus, gnome-maps… none of them shows up as using the dGPU:
bruno@LT-B:~> nvidia-smi
Sat Oct 26 16:34:54 2024
+-----------------------------------------------------------------------------------------+
| NVIDIA-SMI 550.127.05 Driver Version: 550.127.05 CUDA Version: 12.4 |
|-----------------------------------------+------------------------+----------------------+
| 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 NVIDIA GeForce GTX 960M Off | 00000000:01:00.0 Off | N/A |
| N/A 37C P8 N/A / 200W | 216MiB / 4096MiB | 0% Default |
| | | N/A |
+-----------------------------------------+------------------------+----------------------+
+-----------------------------------------------------------------------------------------+
| Processes: |
| GPU GI CI PID Type Process name GPU Memory |
| ID ID Usage |
|=========================================================================================|
| 0 N/A N/A 3437 G /usr/bin/gnome-shell 1MiB |
| 0 N/A N/A 7107 C ...b64/libreoffice/program/soffice.bin 27MiB |
| 0 N/A N/A 8023 C /usr/bin/darktable 28MiB |
| 0 N/A N/A 8225 G /usr/lib64/firefox/firefox 152MiB |
+-----------------------------------------------------------------------------------------+
bruno@LT-B:~>
OpenGL (glxinfo etc.) and even video decoding apparently work.
I’m not going to force-reinstall the whole Gnome DE just for the sake of testing, given that the apps I definitely need are OK now, but better insight from experts will be appreciated.
@OrsoBruno Hi, that’s because GNOME automatically detects the dGPU (Nvidia/Cuda) and should be using it for compute.
Now I use the beta open driver, but I also still see launch with discrete gpu, but it starts but not visible, needs some Wayland variable foo…
nvidia-smi
Sat Oct 26 10:48:29 2024
+-----------------------------------------------------------------------------------------+
| NVIDIA-SMI 565.57.01 Driver Version: 565.57.01 CUDA Version: 12.7 |
|-----------------------------------------+------------------------+----------------------+
| 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 NVIDIA T400 Off | 00000000:02:00.0 Off | N/A |
| 50% 43C P8 N/A / 31W | 23MiB / 2048MiB | 0% Default |
| | | N/A |
+-----------------------------------------+------------------------+----------------------+
+-----------------------------------------------------------------------------------------+
| Processes: |
| GPU GI CI PID Type Process name GPU Memory |
| ID ID Usage |
|=========================================================================================|
| 0 N/A N/A 2678 G /usr/bin/gnome-shell 1MiB |
| 0 N/A N/A 64595 C+G /usr/bin/gnome-text-editor 17MiB |
+-----------------------------------------------------------------------------------------+
Vs normal launch
+-----------------------------------------------------------------------------------------+
| Processes: |
| GPU GI CI PID Type Process name GPU Memory |
| ID ID Usage |
|=========================================================================================|
| 0 N/A N/A 2678 G /usr/bin/gnome-shell 1MiB |
| 0 N/A N/A 64937 C+G /usr/bin/gnome-text-editor 2MiB |
+-----------------------------------------------------------------------------------------+
+-----------------------------------------------------------------------------------------+
| Processes: |
| GPU GI CI PID Type Process name GPU Memory |
| ID ID Usage |
|=========================================================================================|
| 0 N/A N/A 3437 G /usr/bin/gnome-shell 1MiB |
| 0 N/A N/A 20248 G gnome-text-editor 13MiB |
+-----------------------------------------------------------------------------------------+
So nothing is broken.
But the “plain” invocation spits:
bruno@LT-B:~> gnome-text-editor
MESA-INTEL: warning: Haswell Vulkan support is incomplete
MESA-INTEL: warning: ../src/intel/vulkan_hasvk/anv_formats.c:752: FINISHME: support YUV colorspace with DRM format modifiers
MESA-INTEL: warning: ../src/intel/vulkan_hasvk/anv_formats.c:783: FINISHME: support more multi-planar formats with DRM modifiers
So everything works as intended, but maybe the new GTK 4.16 default is a bit ahead of my HW?
+-----------------------------------------------------------------------------------------+
| Processes: |
| GPU GI CI PID Type Process name GPU Memory |
| ID ID Usage |
|=========================================================================================|
| 0 N/A N/A 28947 G /usr/bin/gnome-shell 1MiB |
| 0 N/A N/A 30156 G /usr/bin/gnome-text-editor 13MiB |
+-----------------------------------------------------------------------------------------+
