Hey everyone! I'm a total newbie to Linux and just made the jump from Windows. I'm dealing with a really irritating issue regarding my dual monitor setup. My primary monitor works great, but my secondary one is giving me headaches. It can handle 1080p fine on Windows, but in Linux, no matter which distro I try, it only recognizes at 1024x768 resolution.
I started off with Bazzite OS using KDE Plasma, hoping it was just a fluke, but then I switched to CachyOS, and the same problem still happens. I've tried exporting the EDID from Windows and applying it to both distros, which improved the resolution slightly to 1280x720, but that's still nowhere near 1080p. When I try to force 1920x1080, the NVIDIA driver refuses it, stating that my user-defined mode isn't supported. I've swapped between X11 and Wayland, and while X11 detects it at 1600x900, I still can't get it to full resolution. Has anyone else faced something similar with NVIDIA drivers, especially on RTX 30 series? Any tips or tricks to help me solve this would be awesome. Thanks!
3 Answers
I actually use CachyOS on Wayland with multiple monitors, and I've never had any issues with resolution. It seems like this might be a unique problem with your setup. Have you double-checked the display settings in your system? Make sure your faulty monitor isn't accidentally set to a 4:3 ratio. If it's a firmware issue, perhaps check out subreddits related to monitor firmware for expert advice.
What model is your secondary monitor? I had similar issues with an Asus monitor. Sometimes, the EDID data can be poorly written by the manufacturer. If it’s a common brand like LG, maybe some others have faced this too and can help.
It’s an older LG model, the E2360.
I totally get your frustration! I used an EDID emulator dongle once to fix a monitor that just wouldn’t cooperate. It worked wonders for me. You might want to check that out!
In the settings, it only gives me options for 4:3, and 1024x768 is the max resolution. I don’t think it’s a monitor issue since it works fine on Windows.