I'm not sure what's caused it. I haven't changed any system settings. The only thing I've done that may have broken something is updating my software.
My update was:
upgrade linux-generic-hwe-20.04:amd64 220.127.116.11.54~20.04.32 18.104.22.168.55~20.04.33 upgrade linux-image-generic-hwe-20.04:amd64 22.214.171.124.54~20.04.32 upgrade linux-headers-generic-hwe-20.04:amd64 126.96.36.199.54~20.04.32 upgrade linux-image-extra-virtual:amd64 188.8.131.52.73 184.108.40.206.74 upgrade linux-image-generic:amd64 220.127.116.11.73 18.104.22.168.74 upgrade linux-libc-dev:amd64 5.4.0-70.78 5.4.0-71.79 upgrade libseccomp2:amd64 2.4.3-1ubuntu3.20.04.3 2.5.1-1ubuntu1~20.04.1 upgrade nomachine:amd64 7.3.2-3 7.4.1-3```
Removing nomachine did not solve the problem.
It was far worse before, I'm not sure how to describe exactly, but my entire screen's UI was glitching out. So I rebooted and that stopped, but now the terminal text looks like this:
I haven't changed any terminal settings. This seems to be occurring in the entire OS. Here is another example:
Not sure how to go about troubleshooting this? I don't have the time to reinstall the OS, nor do I think I should have to because this is just ridiculous and shouldn't happen. I'm not aware of anything I've done to make the system unstable.
Earlier I also tried booting the PC. It failed and got stuck on some command in a terminal (didn't manage to take a photo of what it said).
So I rebooted into recovery mode with both available kernels. I was getting strange glitches like this:
That didn't work. So I rebooted the PC normally, and now I somehow logged in fine. Now I'm getting popups saying to report a system error. It says this:
- Ubuntu 20.04.2 LTS
- GNOME 3.36.8
sudo lshw -class display *-display description: VGA compatible controller product: Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller vendor: Intel Corporation physical id: 2 bus info: pci@0000:00:02.0 version: 06 width: 64 bits clock: 33MHz capabilities: msi pm vga_controller bus_master cap_list rom configuration: driver=i915 latency=0 resources: irq:33 memory:f7800000-f7bfffff memory:e0000000-efffffff ioport:f000(size=64) memory:c0000-dffff
I also did MemTest86, which passed with 0 errors.
Let me know if more details are required.