Fresh install of Ubuntu 19 keeps crashing with the message NVRM: Xid (PCI:0000:01:00): 79, GPU has fallen off the bus. appearing in the logs. $ lspci | grep -E "VGA|3D" 00:02.0 VGA compatible controller: Intel Corporation UHD Graphics 630 (Mobile) 01:00.0 VGA compatible controller: NVIDIA Corporation GP107GLM [Quadro P1000 Mobile] (rev a1) Currently running nvidia-driver-418. When i am choosing to use the Intel GPU then the system does not crash but i would like to use an external monitor as well so I am trying to make the Nvidia work. When in prime i am switching to use the Nvidia GPU the system will eventually crash after some random time. I have tried the instructions from here, because i could not use the external monitor after the first install. Additionally I have tried setting the GPU in persistent mode by sudo nvidia-smi -pm 1 and also setting the grub option pcie_aspm=off which did nothing at the end. i am unsure on how to proceed and any information would be helpful. EDIT: I have dual boot with Windows and in Windows everything works fine without any problem! nvidia-bug-report.log.gz (95.4 KB) [Superposition_Benchmark_v1.1_3253_1563787506.png] nvidiatemp.log (36.5 KB) NEWnvidia-bug-report.log.gz (1.1 MB)

Some reasons for an XID 79 on a notebook are bios problems, overheating or defective gpu. Please check for a bios update, then check if it works when using Windows, otherwise RMA.

On Windows, the nvidia gpu is normally off, did you check running e.g. an Unigine demo explicitly on the nvidia gpu to test? Otherwise, please run nvidia-bug-report.sh as root and attach the resulting .gz file to your post. Hovering the mouse over an existing post of yours will reveal a paperclip icon. [url]https://devtalk.nvidia.com/default/topic/1043347/announcements/attaching-files-to-forum-topics-posts/[/url]

I have attached to the first post the results from running Unigine using Windows. Everything works fine there and the external monitor works properly as well. I have also attached the result from running the nvidia-bur-report.sh tool. Thank you for your time in helping me.

There’s a bios update available, you should consider trying that. The gpu falling off the bus seems to happen rather spontaneously, maybe this model is a dual fan design and there’s a problem with the second fan in Linux. Please create a temperature log using nvidia-smi -q -l 2 -d TEMPERATURE -f nvidiatemp.log while switch to nvidia profile until it crashes. After reboot, please attach the file.

i have updated the BIOS to the latest version and after it crashed i generated the nvidiatemp.log file as you specified above and I have attached it to the initial post.

Temperatures are fine, so it isn’t overheating, either. Please check if the latest driver changes anything by adding the Ubuntu graphics ppa and installing the 430 driver from that. Also, please create a new nvidia-bug-report.log while switched to the nvidia profile and the gpu still running so I can see the gpu’s settings.

I have just switched to driver 430 and attached to the first post the new logs(NEWnvidia-bug-report.log.gz) while on the nvidia profile. System is running for 5 minutes using an external monitor as well and still stable, will update further later on.

Nothing changed with the driver 430. System keeps crashing.

Maybe this is some kind of power problem. Please try limiting the clocks using sudo nvidia-smi -i 0 --lock-gpu-clocks=139,1200 and check if the system becomes stable.

NVRM: Xid (PCI:0000:01:00): 79, GPU has fallen off the bus - HP Studio G5

Graphics / Linux Linux

vaslion13 July 22, 2019, 8:45am 3

thank you for your answer. I have to say that i am using dual boot with windows and on windows everything is fine without the slightest problem.

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NVRM: Xid (PCI:0000:01:00): 79, GPU has fallen off the bus - HP Studio G5

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