Hello! Few days ago i get Khadas VIM2 PRO and install Ubuntu MATE. I need rotate screen on 90 deg. and it become a problem. What i have:
Ubuntu info
Release 16.04.3 LTS (Xenial Xerus) 64-bit
MATE 1.12.1
$ uname -a
Linux Khadas 4.9.40 #2 SMP PREEMPT Wed Sep 20 10:03:20 CST 2017 aarch64 aarch64 aarch64 GNU/Linux
$ xrandr -q --verbose
xrandr: Failed to get size of gamma for output default Screen 0: minimum 1920 x 1080, current 1920 x 1080, maximum 1920 x 1080 default connected primary 1920x1080+0+0 (0x26d) normal (normal) 0mm x 0mm Identifier: 0x26c Timestamp: 35275 Subpixel: unknown Clones: CRTC: 0 CRTCs: 0 Transform: 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 filter: 1920x1080 (0x26d) 0.000MHz *current h: width 1920 start 0 end 0 total 1920 skew 0 clock 0.00KHz v: height 1080 start 0 end 0 total 1080 clock 0.00Hz
What i try:
$ xrandr -o right
X Error of failed request: BadMatch (invalid parameter attributes)
Major opcode of failed request: 140 (RANDR)
Minor opcode of failed request: 2 (RRSetScreenConfig)
Serial number of failed request: 14
Current serial number in output stream: 14
I tryed add new mode from cvt, but it is wasn’t help.
I read this http://forum.khadas.com/t/rotation-display-ubuntu-mate/1164/2 but i didn’t find armbian with 4.13 kernel to test it.
Somebody rotate screen successful?