After this update(KDE, kenerl from 5.8 to 5.9.8-2), optimus manager can’t change to hybrid mode or Nvidia mode. Thought some thing wrong with Nvidia driver, what should I do? Currently I can’t change the lightness and can’t light up my second screen which may due to this problem.
What nvidia driver are you using? Think only 450 and 455 are compatible with kernel 5.9, might even just be 455. The screen brightness issue maybe a bug as other people have reported the same issue. If you don’t want to update nvidia drivers then easiest solution is to switch to a LTS kernel like 5.4
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Can you run nvidia-smi? What does systemctl status optimus-manager print out? Without further input I would also remove and re-install the Nvidia drivers, restart, check status again.
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systemctl status optimus-manager
● optimus-manager.service - Optimus Manager Commands Daemon
Loaded: loaded (/usr/lib/systemd/system/optimus-manager.service; enabled; vendor preset: disabled)
Active: active (running) since Thu 2020-11-26 21:33:13 CST; 18min ago
Main PID: 919 (python3)
Tasks: 1 (limit: 19053)
Memory: 14.9M
CGroup: /system.slice/optimus-manager.service
└─919 /usr/bin/python3 -u -m optimus_manager.daemon
Nov 26 21:33:13 bran-t500 python3[761]: _load_module(available_modules, "nvidia", options="NVreg_UsePageAttributeTable=%d" % pat_value)
Nov 26 21:33:13 bran-t500 python3[761]: File "/usr/lib/python3.8/site-packages/optimus_manager/kernel.py", line 175, in _load_module
Nov 26 21:33:13 bran-t500 python3[761]: raise KernelSetupError(
Nov 26 21:33:13 bran-t500 python3[761]: optimus_manager.kernel.KernelSetupError: module nvidia is not available for current kernel. Is the corresponding package installed ?
Nov 26 21:33:13 bran-t500 python3[761]: [227] INFO: Removing /etc/X11/xorg.conf.d/10-optimus-manager.conf (if present)
Nov 26 21:33:13 bran-t500 python3[761]: [228] INFO: Writing state {'type': 'pre_xorg_start_failed', 'switch_id': '20201126T213313', 'requested_mode': 'hybrid'}
Nov 26 21:33:13 bran-t500 systemd[1]: Started Optimus Manager Commands Daemon.
Nov 26 21:33:13 bran-t500 python3[919]: [1] INFO: # Commands daemon
Nov 26 21:33:13 bran-t500 python3[919]: [1] INFO: Opening UNIX socket
Nov 26 21:33:13 bran-t500 python3[919]: [2] INFO: Awaiting commands
I use video-hybrid-intel-nvidia-450xx-prime(from mhwd), before the update , nvidia-smi can recognize the driver, but after updating, it shows:
nvidia-smi
NVIDIA-SMI has failed because it couldn't communicate with the NVIDIA driver. Make sure that the latest NVIDIA driver is installed and running.
SORRY FOR THE LATE REPLY and my poor english, thanks for all your help.
So both are very verbose and straightforward to what is happening, as said above I would remove 450 and install 455, then reboot. Configure Graphics Cards - Manjaro
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when i try to mhwd -i video-hybrid-intel-nvidia-450xx-prime -f before, it cames an error:script failed.
because the ‘cuda’ dependence. Should I remove cuda first ,then remove 450 and install 455 by mhwd -i ?
I would try first removing mhwd -r the 450 drivers, then installing mhwd-i the 455 drivers and see from there.
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sudo mhwd -r pci video-hybrid-intel-nvidia-450xx-prime
Removing video-hybrid-intel-nvidia-450xx-prime...
Sourcing /etc/mhwd-x86_64.conf
Has lib32 support: true
Sourcing /var/lib/mhwd/local/pci/video-hybrid-intel-nvidia-450xx-prime/MHWDCONFIG
Processing classid: 0300
Sourcing /var/lib/mhwd/scripts/include/0300
正在检查依赖关系...
错误：无法准备事务处理 (无法满足依赖关系)// can't deal with the dependency
:: 删除 nvidia-450xx-utils 破坏依赖 'nvidia-utils' （cuda 需要）// this says cuda need depend on nvidia-450xx-utils
Error: pacman failed!
Error: script failed!
it seems than still can’t remove without removing cuda
I just do these commend:
sudo pacman -R cuda
sudo mhwd -r pci video-hybrid-intel-nvidia-450xx-prime
sudo mhwd -i pci video-hybrid-intel-nvidia-455xx-prime
and then I find the nvidia-smi detected the driver. Then should I reboot?
nvidia-smi
Thu Nov 26 23:19:20 2020
+-----------------------------------------------------------------------------+
| NVIDIA-SMI 455.45.01 Driver Version: 455.45.01 CUDA Version: 11.1 |
|-------------------------------+----------------------+----------------------+
| 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 GeForce GTX 1060 Off | 00000000:01:00.0 Off | N/A |
| N/A 53C P0 26W / N/A | 0MiB / 6078MiB | 2% Default |
| | | N/A |
+-------------------------------+----------------------+----------------------+
+-----------------------------------------------------------------------------+
| Processes: |
| GPU GI CI PID Type Process name GPU Memory |
| ID ID Usage |
|=============================================================================|
| No running processes found |
+-----------------------------------------------------------------------------+
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Thank you! The problem now is solved after updating to 455.
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