[kalle2000]

ok, activated debugging.

libreelec_8.2.1 (fresh install)

milhouse (fresh upgrade)

in v18 log says tv screen is connected via DP1, however its connected through hdmi.

xrandr output:

Screen 0: minimum 8 x 8, current 3840 x 2160, maximum 32767 x 32767
DP1 connected primary 3840x2160+0+0 (normal left inverted right x axis y axis) 1100mm x 620mm
   3840x2160     60.00*+  30.00    25.00    24.00    29.97    23.98  
   4096x2160     24.00    23.98  
   1920x1080     60.00    50.00    59.94    30.00    25.00    24.00    29.97    23.98  
   1920x1080i    60.00    50.00    48.04    59.94  
   1600x1200     60.00  
   1680x1050     59.88  
   1400x1050     59.95  
   1280x1024     75.02    60.02  
   1440x900      59.90  
   1280x960      60.00  
   1280x800      59.91  
   1152x864      75.00  
   1280x720      60.00    50.00    59.94  
   1024x768      75.03    70.07    60.00  
   832x624       74.55  
   800x600       72.19    75.00    60.32    56.25  
   720x576       50.00  
   720x480       60.00    59.94  
   640x480       75.00    72.81    60.00    59.94  
   720x400       70.08  
DP2 disconnected (normal left inverted right x axis y axis)
HDMI1 disconnected (normal left inverted right x axis y axis)
HDMI2 disconnected (normal left inverted right x axis y axis)
VIRTUAL1 disconnected (normal left inverted right x axis y axis)