ever since I have installed Ubuntu 18.04 on my notebook, the system freezes from time to time. Sometimes after 5min, sometimes after 12h. I read already many similar posts here, but nothing could fix this so far. The syslog shows this:
[409.510638] NVRM: GPU at PCI:0000:01:00: GPU-9fa50d45-1ce5-82a4-9edd-436827ce0bb2
[409.510640] NVRM: Xid (PCI:0000:01:00): 79, pid=2976, GPU has fallen off the bus.
[409.510641] NVRM: GPU 0000:01:00.0: GPU has fallen off the bus.
[409.510694] NVRM: A GPU crash dump has been created. If possible, please run
[409.510694] NVRM: nvidia-bug-report.sh as root to collect this data before
[409.510694] NVRM: the NVIDIA kernel module is unloaded.
[421.797707] sysrq: This sysrq operation is disabled.
[421.869714] sysrq: This sysrq operation is disabled.
[422.453723] sysrq: This sysrq operation is disabled.
[422.933751] sysrq: Emergency Sync
[422.935343] Emergency Sync complete
[423.325743] sysrq: Emergency Remount R/O
When this happens I can't do anything. If I press ctrl+s in my current application the file is not saved. I can't open tty. The only things which are working are "REISUB" and "REISUO". So I can't execute nvidia-bug-report.sh before the reboot.
I am running the latest nvidia driver, I had the problem ever since, I guess I started with 440:
+---------------------------------------------+
| NVIDIA-SMI 495.44 Driver Version: 495.44 CUDA Version: 11.5 |
|-------------------------------+----------------------+----------------------+
| 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 P620 Off | 00000000:01:00.0 Off | N/A |
| N/A 49C P3 N/A / N/A | 309MiB / 4042MiB | 0% Default |
| | | N/A |
+-------------------------------+----------------------+----------------------+
+---------------------------------------------+
| Processes: |
| GPU GI CI PID Type Process name GPU Memory |
| ID ID Usage |
|=============================================================================|
| 0 N/A N/A 2066 G /usr/lib/xorg/Xorg 200MiB |
| 0 N/A N/A 2550 G /usr/bin/gnome-shell 40MiB |
| 0 N/A N/A 3205 G ...AAAAAAAAA= --shared-files 66MiB |
+---------------------------------------------+
On this pc I used windows for only very short periods, but I never had a problem there, so I would think it is rather a driver issue than a hardware defect.
Do you think it would make sense to use the intel i7 GPU instead? Is there a simple way to deactivate the nvidia GPU in Ubuntu?
I am happy for any hints.
BR Michael
