Unable to get my dGPU -> TB DP Alt Mode -> TV setup working in gamemode
Hi. I am trying to get around the AMD HDMI limitation, by leveraging TB4 ports on my motherboard with DP Alt mode. Plasma session works perfectly, however gamescope session seems to be having issues. according to drm driver, the DP connection is routed through the iGPU (even tho i have 7800x3d, so no igpu). by default gamescope will pick this up and appear to work, but reports in log that it chose the vulkan device for the intergrated gpu, leaving me stranded at verifying installation. attempting a
gamescope -- glxgears in TTY however, works. if i modify GAMESCOPECMD to include --prefer-vk-device of my dGPU, it will attempt to find a connected port on it and doesnt find any. Is there a way to get this to work? like specify it to use the output card0-DP-3 while using card1 for rendering? the way Plasma works?0 Replies