I'm trying to use a 5.7" LCD screen with Beaglebone Black. I connected the
pins and it's working but there is a problem. LCD's resolution is 640x480
and doesn't have an EEPROM. So Beaglebone is setting itself to its defualt
resolution, which is 1280x720. I'm trying to change the resolution with:
am display-size 640x480
But it doesn't realy change the resolution. It just configure the
resolution to look like a 640x480 in a 1280x720 screen. When I look at
it gives me:
*init=1280x720 160dpi* base=640x480 160dpi cur=640x480 .......
I think I need to change that init value. I think that value is being set
by communicating with LCD's EEPROM. Because when I connect a LCD3 Cape
dumpsys window gives init=320x240. Or if LCD doesn't have an EEPROM
Beaglebone set itself to its default resolution. I need to change that
default resolution. Is there a adb or shell command I can use? Or should I
change something in kernel?