(12-04-2018, 03:20 PM)myltlpwny Wrote: For all guys, which have just a blackscreen at Armbian install/boot. Plug out your HDMI from Tinkerboard, insert the card, insert power-cable and wait for orange and green lights, then you can plug your HDMI into the Tinkerboard. At this Monitor you have to do it everytime if you want to boot retropie or you will find out, how to fix it.
I have this problem only at my WQHD 165hz Monitor. My 3 TVs works fine without plug out the HDMI.
If somebody know how to fix this problem, let me know it.
Sorry for my bad english, not my language.
I have an older TV that I was having the same problem with, it didn't like the default 1080P and would display nothing. The biggest help was changing the HDMI cable. I had nice HDMI 1.4 cables and switched to an older HDMI cable which fixed the black screen, I found my answer to resolution issues in this post.
https://forum.armbian.com/topic/3749-how...ment=66311
To check what resolution your HDMI port is currently running at, run this command:
tinkerboard:~$
cat /sys/class/drm/card0-HDMI-A-1/mode
FINALLY I found this string that worked..
edit and add this line to /boot/armbianENV.txt
extraargs=drm_kms_helper.edid_firmware=HDMI-A-1:edid/
640x480.bin video=HDMI-A-1:
640x480@60
...where the bolded areas are the resolution you need your HDMI port to output.
For example... My /boot/armbianENV.txt says:
verbosity=1
ethaddr=06:e6:ad:01:69:00
fdt_file=rk3288-miniarm.dtb
console=ttyS3,115200n8
rootdev=UUID=264bd30a-7801-4773-82c9-6060cc9b1a3e
extraargs=drm_kms_helper.edid_firmware=HDMI-A-1:edid/1280x720.bin video=HDMI-A-1:1280x720@60
usbstoragequirks=0x2537:0x1066:u,0x2537:0x1068:u
my /sys/class/drm/card0-HDMI-A-1/mode now says:
pi@tinkerboard:~$ cat /sys/class/drm/card0-HDMI-A-1/mode
1280x720p60