A20 + LCD, flickering , no image

[marineo]

Hi,

I'am having a weird problem with A20.
I downloaded and flashed new Android image:
A20_android_422_TS_USB_UART_I2C_WIFI_LAN_HDMI_LCD_1024x600_release_3.img

The image boots and HDMI works, but when I connect 15" LCD, it does not show anything.
When I'am on main screen(home screen) the LCD is only flickering, but when I go to settings or something else, LCD stops flickering.

Here is the information running on HDMI:



And here is LCD output.



You can see a light flickering(only when I'am at home screen)



Any solution for this?
I did try with stock image and problem exist.

[otyugh]

Problem of power supply to me.
Add one more maybe ?

Personnaly I did get the 7" working on the debian edition using the /root/change_display.sh, never tried android...

[marineo]

I did.

Just tried Debian and work out of the box.

Problem is Android

[bobdole]

Having the same issue here with the 15 inch screen and stock android. I didn't try Linux yet can you conform 15 inch monitor works with Linux. also did you add a separate power supply for the monitor i noticed at the back there was a connector you change to power 5v via external 5v power supply i think ?, I cant find any paperwork on it so i presume that's what your supposed to do. as well i think that monitor is 1366 x 768 or something like like. Anyways if you guys figure it out let me know.