title, I’m running an external display off displayport from my laptop running eos kde wayland, and the main monitor just wont run at 144hz, strangely, running glxgears on the external monitor gives me 71fps on said display. It shows up as selected in KDE Settings (even the monitor OSD says its on 144hz). changing refresh rates below 60 does seem to take effect though, almost like its capped. Ive already tried the most common said “fixes” for this such as modifying kwinrc entries (MaxFps=144). Maybe it has something to do with NVIDIA? I don’t really know.
Additionally, audio over DP doesn’t work either as it doesn’t appear in the KDE Settings menu.
What version is your display port cable. Maybe check that and try a better quality cable that is certified to meet the standards. Lots of cables are inferior. Also you have nvidia and amd graphics. It is running on amdgpu currently not nvidia.
It is my understanding that the integrated Radeon graphics drive the built in screen. The nvidia gpu drives all external ports. i.e. HDMI, DP, USB-C. Most laptops switch to the nvidia when connecting an external monitor. You should be able to get 144 Hz with the right cable and if the monitor supports it. Some laptops use the type-c display port output and it automatically switches to nvidia. I don’t know your hardware. The output shows it using amdgpu.
Are there any options in the UEFI Bios to switch to dedicated graphics?
Just F.Y.I you are currently running on the amdgpu using eDP-1
Are you wanting to do 144Hz on that display because the ouput shows it can’t. You need to switch to nvidia output in order to that on display port using the nvidia graphics on the external monitor.
while switching to nvidia with optimus on xorg does seem to work fine, on wayland it remains the same. Honestly i dont know what else to try to make it work on my specific case on wayland and its such a shame because otherwise everything else went fine (ex: manjaro didnt even recognize the second screen to begin with)
I guess ill live with it on xorg for now and if anyone has any clue as to how to fix it be free to help, aditiionally, any clues as to how do i get audio over dp working? the nvidia-settings panel says audio over displayport is avaliable but it doesnt seem to work, all i can see on the kde settings panel is “HDA Nvidia” showing up under the “Inactive Cards” section (audio did work under windows) Thanks in advance