Unable to use extermal 10" HDMI Display
I am stuck for a few days googling and searching for a fix.
The LCD works when it is connected to my Mac Book Pro
The Orange Pi 5 HDMI is able to drive a big, Philps 22" 4K monitor
Therefore, hardware wise, they are working.
It is when my OPI is connecte to my 10" small LCD via HDMI. No output.
I trird doing the xrandt stuff but always get an error:
"Can't open display"
doing " export DISPLAY=:0" gets:
Authorization required, but no authorization protocol specified
Can't open display :0