I’m not sure if this is the best community to post in, but I just bought a used computer and slotted in an RX480 as the GPU. I installed KDE Neon 5.27 on it, and it worked flawlessly for 2 days.
Then, even though it was working earlier today, it slept and then would not wake up. So I turned off the power and turned it back on again, and was greeted with this error screen:
The only prior error message I’d gotten from the system was when I tried to install wine for one application, it told me some packages weren’t up to date, without a way to fix it. I can enter the BIOS just fine.
What is going on? How do I fix this?
Before doing anything, if your screen allows it, swap DP to HDMI or HDMI to DP as output, that may fix this to the point of being able to actually boot and further fix the issue.
I’ve had this before with drivers where suddenly it would fail on either port but would still run on one of the others.