Alwinner A20 Micro won't output HDMI

[AntonioPisano]

Hello there,

 

I just flashed latest armbian (downloaded yesterday) on my A20 Olinuxino Micro. Version was with legacy kernel as my use case involves multimedia. SD card is Samsung Evo 128GB.

Once I attach HDMI display, I can see armbian logo and something happening (booting kernel etc) just for a few seconds, then screen flashes with colors and I don't get anymore signal. I tried with two monitors with the same reult. Later today I will try using cable-f attached to pins to see wether something is happening under the hood (I expect yes). In the meantime can someone confirm this issue? What should I try in order to fix this?

 

Thanks in advance for any help on this.

 

Antonio

[Igor]

https://github.com/armbian/build/commit/e868c5ddfb611cc15cfe0168db4d83666e4537d9

[AntonioPisano]

Ended up issue was already described here 

 

 

Solution for me was to bin2fex micro.bin file and replace

 

screen0_output_type = 1
screen0_output_mode = 5
screen1_output_type = 1
screen1_output_mode = 5

with

 

screen0_output_type = 3
screen0_output_mode = 4
screen1_output_type = 0
screen1_output_mode = 4

taken from lime.fex here https://github.com/armbian/build/blob/master/config/fex/lime2.fex

 

 

You should consider fixing this upstream, as current a20 olimex micro legacy image won't output on HDMI out of the box

 

Ciao