Thanks for the bug report. A few thoughts:
1. xserver-xorg-video-intel is old and not supported. Please uninstall
it to make sure you're using the newer default driver ('modesetting').
2. Your kernel log shows constant hardware errors from the 'Intel
Corporation 8 Series PCI Express Root Port 3':
[ 69.485800] pcieport 0000:00:1c.0: AER: Corrected error received:
0000:00:1c.0
[ 69.485812] pcieport 0000:00:1c.0: AER: PCIe Bus Error: severity=Corrected,
type=Data Link Layer, (Transmitter ID)
[ 69.485817] pcieport 0000:00:1c.0: AER: device [8086:9c14] error
status/mask=00001000/00002000
[ 69.485821] pcieport 0000:00:1c.0: AER: [12] Timeout
I don't know if that's a real hardware problem or a kernel bug. So
please try some older kernels like: https://kernel.ubuntu.com/~kernel-
ppa/mainline/v5.4.92/
3. Please check the system for non-kernel crashes using these
instructions:
https://wiki.ubuntu.com/Bugs/Responses#Missing_a_crash_report_or_having_a_.crash_attachment
** Summary changed:
- Last few kernel updates, video crashes, system freezes
+ [i915] Last few kernel updates, video crashes, system freezes
** Package changed: xorg (Ubuntu) => linux (Ubuntu)
** Changed in: linux (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1912898
Title:
[i915] Last few kernel updates, video crashes, system freezes
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