So I gave my dad my old 4K monitor, and I did read that the V4900 is supposed to have DisplayPort 1.1, which is supposed to support 4K. For some reason, the top right corner appears to be fritzing or something.
Is it supposed to be capable of handling 4K? Am I missing a specific driver?
He’s on Ubuntu 22.04
kernel 5.15
using radeon driver
LLVM 15.0.7
Also, how can I make an Xorg.conf file for AMD GPU?
Issue disappears when he switches to 1440p, however, but it looks so fuzzy, and a waste of 4K potential.
On a different note, only reason why he got my old 4K is cuz I’m reducing stuff.
The. 4900 is from 2011, when 1080p was considered high end
They probably didn’t design it with 4k in mind
Dp 1.1 only rated for 4k 30hz and your 4k was probably not designed to run 4k at such an old spec
Maybe spend 14$ and get a better card
R7 250 should be roughly same performance and newer display standards
It could honestly also be the cable, many DP cables suck and work fine for a time and suddenly not work anymore for whatever reason.
Or in this case you might be running into signaling problems because of a not so good cable.
