nvidia card not responding after turning off with bbswitch
by naikin from LinuxQuestions.org on (#6PAJJ)
I am using bbswitch and bumblebee on my laptop to turn my nvidia GPU on and off to save battery.
The problem is that after turning off the GPU off with bbswitch, the GPU stops responding and can't be turned on again. I am turning it off with:
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Afterwards, I turn it on with
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The commands complete fine, the status inside /proc/acpi/bbswitch says ON, but if I run nvidia-smi I get
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. Similarly I can't run any process on the GPU.
Checking dmesg I can see an obvious problem
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dmesg also reports some errors related to turning off the GPU. The log is quite long so I pasted it here
After reboot, the GPU works fine.
How do I fix this so I can turn the GPU on and off without reboot?
Extra info
Laptop: Dell XPS 15 9530
GPU: Nvidia RTX4060
OS version: Slackware-current
NVIDIA driver version: 550.78
kernel version: 6.9.8 (didn't work with earlier kernels either)
bbswitch version: 0.8
The problem is that after turning off the GPU off with bbswitch, the GPU stops responding and can't be turned on again. I am turning it off with:
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| sudo rmmod nvidia_drm sudo rmmod nvidia_uvm sudo rmmod nvidia_modeset sudo rmmod nvidia sudo tee /proc/acpi/bbswitch <<<OFF |
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| sudo tee /proc/acpi/bbswitch <<<ON sudo modprobe nvidia sudo modprobe nvidia_modeset sudo modprobe nvidia_drm sudo modprobe nvidia_uvm sudo /usr/bin/nvidia-modprobe -c 0 -u |
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| No devices were found |
Checking dmesg I can see an obvious problem
Quote:
| [939155.445439] bbswitch: enabling discrete graphics [939156.023420] pci 0000:01:00.0: Unable to change power state from D3cold to D0, device inaccessible [939156.182302] nvidia-nvlink: Nvlink Core is being initialized, major device number 505 [939156.182309] NVRM: loading NVIDIA UNIX x86_64 Kernel Module 550.78 Sun Apr 14 06:35:45 UTC 2024 [939156.261562] nvidia-modeset: Loading NVIDIA Kernel Mode Setting Driver for UNIX platforms 550.78 Sun Apr 14 06:23:31 UTC 2024 [939156.287232] [drm] [nvidia-drm] [GPU ID 0x00000100] Loading driver [939156.287236] [drm] Initialized nvidia-drm 0.0.0 20160202 for 0000:01:00.0 on minor 1 [939156.312090] nvidia_uvm: module uses symbols nvUvmInterfaceDisableAccessCntr from proprietary module nvidia, inheriting taint. [939156.340007] nvidia-uvm: Loaded the UVM driver, major device number 503. [939161.399609] NVRM: GPU 0000:01:00.0: RmInitAdapter failed! (0x24:0x72:1556) [939161.399679] NVRM: GPU 0000:01:00.0: rm_init_adapter failed, device minor number 0 |
After reboot, the GPU works fine.
How do I fix this so I can turn the GPU on and off without reboot?
Extra info
Laptop: Dell XPS 15 9530
GPU: Nvidia RTX4060
OS version: Slackware-current
NVIDIA driver version: 550.78
kernel version: 6.9.8 (didn't work with earlier kernels either)
bbswitch version: 0.8