Android 4.4.2 Blank Screen Recovery Problem

[sinane...@gmail.com]

Hello,

I'm dealing with Radxa Rock Pro and Android 4.4.2. I'm using an 10" 24bit lcd display(LVDS) and it is works greate when normal boot. After "reboot recovery" command, it boots in recovery mode with a blank screen and it is not a backlight problem. 

One more thing; if I enable fb0 from sysfs ("echo 1 > /sys/class/graphics/fb0/enable"), I can see "dead droid" icon for 1 seconds when system reboots.

Regards,

Sinan

The icon:

[snan]

Ok, I found the solution.

/ # 

/ # busybox echo 1 > /sys/class/graphics/fb0/enable 

[   67.661721] rk3188 lcdc1 clk enable...

[   67.661749] lcdc1: dclk:50000000>>fps:59 

[   67.661778] rk30-lcdc rk30-lcdc.1: rk3188_load_screen for lcdc1 ok!

[   67.686876] lcdc1 wakeup from stan #y!

[   67.686899] lcdc1 win0 open,atv layer:1

/ # 

/ # 

/ # busybox cat /sys/class/graphics/fb0/modes

U:1024x600p-0

/ # 

/ # 

/ # busybox echo U:1024x600p-0 >  /sys/class/graphics/fb0/mode

/ #