[Buildroot] Issue with Asus Tinkerboard Buildroot OS build

fld2865 at gmail.com fld2865 at gmail.com
Thu May 28 17:02:36 UTC 2020

Hello Busybox.net,I'm attempting the development of a custom Linux distribution for the Asus Tinkerboard,using Buildroot 2020.02.2.I successfully obtained a booting OS image, which does communicate via serial and SSH,but doesn't output ANYTHING on the HDMI video output.I added all the packages I know of, including X11 stack and OpenGLES libs, but I'm not sureabout which video driver to use. I tried with xf86-video-fbdev and xf86-video-vesa, but withoutsuccess.
The net result is that when I try to load the Xserver through startx, I get the following result:
/home# startx
xauth:  file //.serverauth.255 does not exist
xauth:  file //.Xauthority does not exist

X.Org X Server 1.20.8
X Protocol Version 11, Revision 0
Build Operating System: Linux 5.4.0-31-generic x86_64
Current Operating System: Linux Tinker 5.0.0 #1 SMP Thu May 28 16:06:04 CEST 2020 armv7l
Kernel command line: console=ttyS2,115200n8 root=/dev/mmcblk0p1 rootwait
Build Date: 28 May 2020  03:26:17PM

Current version of pixman: 0.38.4
        Before reporting problems, check http://wiki.x.org
        to make sure that you have the latest version.
Markers: (--) probed, (**) from config file, (==) default setting,
        (++) from command line, (!!) notice, (II) informational,
        (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/Xorg.0.log", Time: Thu Jan  1 01:10:01 1970
(==) Using default built-in configuration (21 lines)
Fatal server error:
(EE) no screens found(EE)
Please consult the The X.Org Foundation support
         at http://wiki.x.org
 for help.
(EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information.
(EE) Server terminated with error (1). Closing log file.

/var/log/Xorg.0.log basically says that there's no /dev/fb pseudo file, which is true, so I thinkI'm using the wrong video driver.Any hint about how could I address this issue?
Thanks & best regards,
Francesco LANDE
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