Hello !

 

I bought this screen recently:

https://www.seeedstudio.com/10-1-inch-1200-1980-HDMI-IPS-LCD-Display-p-2863.html

 

I tried to connect it to my Tinkerboard but could not get an image.

On an raspberry I have input specific display settings in the configuration file.

hdmi_drive=2
hdmi_mode=87
disable_overscan=1

# 10.1 inch
hdmi_timings=1200 0 100 24 52 1920 0 65 4 25 0 0 0 60 0 169000000 0
max_framebuffer_width=1920
max_framebuffer_height=1920
display_rotate=3
framebuffer_width=1920
framebuffer_height=1200

By cons I do not know how to do with the tinkerboard.

same problem on Nanopi-M4

After a lot of reading, I realized that I had to patch the u-boot. By cons how to do?

I have same problem. You have two ways:

 

1. Try set timings manualy. Find in /var/log/Xorg.0.log right modeline and add it to xrandr. 

# CVT
xrandr --newmode "1920x1200_cvt"  193.25  1920 2056 2256 2592  1200 1203 1209 1245 -hsync +vsync
xrandr --addmode HDMI-1 "1920x1200_cvt"
xrandr --output HDMI-1 --mode "1920x1200_cvt"

# if not working - GTF
xrandr --newmode "1920x1200_gtf"  193.16  1920 2048 2256 2592  1200 1201 1204 1242  -HSync +Vsync
xrandr --addmode HDMI-1 "1920x1200_gtf"
xrandr --output HDMI-1 --mode "1920x1200_gtf"

# or you can find right timings in /var/log/Xorg.0.log

 

2. If not working - try my pull request for 4.4 kernel: https://github.com/armbian/build/pull/1317