Unblanking the screen fails
echo 1 > /sys/class/graphics/fb0/blank ; sleep 1; echo 0 > /sys/class/graphics/fb0/blank
brings the backlight back on but no output. From quick look it seems the issue is not in the panel driver but somewhere further up since a panel reset doesn't change anything (which reruns the full init sequence and can recover about everthing).
Edited by Guido Gunther