Hello! I'm running LibreELEC on an old laptop with a Pentium processor, connected to my receiver through a USB-C hub over HDMI. After following the instructions on the wiki/forum for creating/updating the edid info and sysconfig files I was able to get it to display only on the external display.
The issue I am facing is that it seems the OS is only recognizing up to 1280x800p. This is the same on another USB-C dock as well (included edid update), and I have also completely reinstalled and re-set up LibreELEC from scratch.
With Windows installed on the device I was able to get a 4K resolution on my TV with the same set up, so I'd love to try to get this working here too! Any help would be greatly appreciated, thanks!