[tredman]

Right the odd problem I had with 4k display has returned.

If I connect my Chromebox to the display from boot I get nothing displayed, xrandr via SSH shows no display.

Connecting after boot occasionally triggers the display to work correctly, but not always. Likewise sometimes a reboot triggers the display to work.

Chromebox works perfectly on a 1080p TV and display in LE is manually forced to 1080p50. I'm running latest 7.90 005 LE.

Any ideas how I can fix this, I'd really like to keep the box but this is a right PITA.

sounds like a situation that's a candidate for force-loading the EDID at startup. There are instructions on the LE wiki for doing so, which I linked a few pages back. Just be sure to capture/extract the EDID when it's actually working

Good shout. I have a Pi2 I could use.

In any case it will be the very same EDID

Tried running the edid command on my pi to try and grab it then move to the Chromebox. However I just get:

Code:

##############################################
#                 LibreELEC                  #
#            http://libreelec.tv             #
##############################################

LibreELEC (community) Version: 7.90.005
Kitchen:~ # ls /sys/class/drm
ls: /sys/class/drm: No such file or directory
Kitchen:~ # cat /sys/class/drm/card0-HDMI-A-1/status
cat: can't open '/sys/class/drm/card0-HDMI-A-1/status': No such file or directory
Kitchen:~ # grep ": connected" /var/log/Xorg.0.log | head -n 1grep: /var/log/Xorg.0.log: No such file or directory
Kitchen:~ #

Any ideas?