Easyest way to rotate the screen 90°

#1

What is the easyest way to rotate the screen 90°. On Raspberry pi i can do it in the config.txt.

BR a.kratzer

GPU memory, detect monitor type, rotate monitor in GPU
#2

Open an xterm and type xandr -q to see the possible resolutions, the current resolution and what your HDMI output is called on your system, then you can rotate the screen with the following commands. The RockPi 4 should be called HDMI-1, but it can be different!

linaro@rpi4b:~$ xrandr -q
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 8192 x 8192
HDMI-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 575mm x 323mm
   1920x1080     60.00*+  60.00    50.00    59.94    24.00    23.98  
   1920x1080i    60.00    50.00    59.94  
   1280x720      60.00    50.00    59.94  
   1024x768      75.03    70.07    60.00  
   800x600       75.00    60.32  
   720x576       50.00  
   720x576i      50.00  
   720x480       60.00    59.94  
   720x480i      60.00    59.94  
   640x480       75.00    60.00    59.94  
   720x400       70.08  
DSI-1 connected 800x480+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
   800x480       61.88*

xrandr --output HDMI-1 --rotate left
xrandr --output HDMI-1 --rotate right
xrandr --output HDMI-1 --rotate normal

2 Likes
#3

it work but the windows doesn’t use the new size. If i switch to fullscreen the windows resize not to the new screen size.

Do you know this problem?

BR ALexander