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While I'm working on the computer, the monitor sometimes suddenly goes black and it starts outputting lines like below in ~7 seconds intervals.

[  127.759539] NVRM: Xid (PCI:0000:01:00): 16, Head 00000001 Count 00002a11
[  135.955830] NVRM: Xid (PCI:0000:01:00): 16, Head 00000001 Count 00002a12
[  144.148118] NVRM: Xid (PCI:0000:01:00): 16, Head 00000001 Count 00002a13

enter image description here

It goes on forever and I can't really get back to the system unless I reboot the computer.

Once I reboot it everything works fine for a couple of days, but eventually it shows up again.

Does anybody have an idea to what it is and how I can solve this?

Using Debian 9

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    Is your NVIDIA graphics card overheating? What are you doing when this happens? – Kusalananda Jan 14 at 16:54
  • @Kusalananda It usually happens within 20-30 minutes of turning my computer on, so I don't suspect overheating. I also run Windows from this computer (for playing games) and I've never had any issues from Windows – Daniel Jan 14 at 17:20
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    Accorting to XID Errors Table, Xid (PCI:0000:01:00): 16 means Display engine hung. IMHO, this seems a driver problem. Which driver are you using? NVIDIA proprietary or open source one? Latest version? What does it happen if you change driver source? – andcoz Jan 14 at 17:35
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    Binary NVIDIA driver is quick, but it is a crap. If you don't need 3D gaming, use nouveau (opensource nvidia drivers). – peterh Jan 14 at 19:52

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