Custom Resolution Utility (CRU)

[ToastyX]

(02-14-2020 04:08 PM)Seneral Wrote:  Sure, sorry didn't think of it, here's the full output of xrandr --verbose on the linux rig where it works.
It's this exact LCD with the standard HDMI to MIPI bridge, no audio. It says LS055R1SX03 there, even though CRU says LS055R1SX01, so maybe they silently switched versions in the one year I had it (edit: no, definitely LS055R1SX03, LS055R1SX01 is 6"... guess it makes not much difference but already tells alot about how the board is set up. Might want to try to edit the firmware on the board).
Here's the export of CRU, not sure how this is related to proper EDID. Have failed to parse either of them using an online edid parser, will try offline.

I don't know what "export of CRU" is because CRU doesn't output that format and it's missing the extension block that is shown in your screen shot.

I see the problem now. The HDMI data block is missing the maximum TMDS clock. This causes AMD's driver to limit HDMI to 165 MHz pixel clock, which causes it to ignore all the resolutions. Just import this file: https://www.monitortests.com/download/dat/hdmi.dat