Ultrawide Monitor has Garbled Image at Correct Resolution
I recently got a LG 25UM58 ultrawide monitor, which is 2560 by 1080 resolution. When I switch to this resolution on Fedora 27 (gnome) the image becomes all messed up.
I'll try my best to get a good photo:
At other resolutions (1920x1080), the image seems to act as it would normally; the image is stretched, but there's no weird fuzzy garbled image.
I've also noticed that when at 2560x1080, the monitor thinks that the image is only 1920x1080:
I'm using a Radeon RX460 over HDMI. I know that the hardware should be fine, since it works fine on my windows install.
I've done some searching for this problem, but the closest thing I could find was this bug report on redhat.
Could anyone shed a bit of light on this problem?
I am seeing the same problem. Radeon RX550 / HDMI / Samsung 34UM61 UltraWide Monitor.
I was able to do an install using basic graphics mode, but I can't seem to enable 2560 x 1080 now that I have a working system using the open source AMD drivers. The official AMD drivers require an older version of RHEL.
Were you ever able to get this working?