Can you post the EDID of the display? "edid-decode /sys/class/drm/card1-HDMI-A-1/edid" will decode it as well.
My last reading of the EDID spec limited the max width and height to 4095, so displays had to do weird things for more than that. The ultrawide modes often seem to be DisplayPort only, not HDMI.
The registers for the display pipeline appear to support widths up to 16383.
Max pixel clock is 600MHz. 3840x2160@60 uses 594MHz, so is only just under the max. It may not be many more pixels, but you may exceed that for your 5k display (what's the height?).
It is possible to use "kmstest -r ...." to produce arbitrary display timings, so if you know the timings, then you can always try it. (Boot to the console so that kmstest can be in control of the display pipeline).
My last reading of the EDID spec limited the max width and height to 4095, so displays had to do weird things for more than that. The ultrawide modes often seem to be DisplayPort only, not HDMI.
The registers for the display pipeline appear to support widths up to 16383.
Max pixel clock is 600MHz. 3840x2160@60 uses 594MHz, so is only just under the max. It may not be many more pixels, but you may exceed that for your 5k display (what's the height?).
It is possible to use "kmstest -r ...." to produce arbitrary display timings, so if you know the timings, then you can always try it. (Boot to the console so that kmstest can be in control of the display pipeline).
Statistics: Posted by 6by9 — Thu Nov 07, 2024 11:46 am