TS-4900 display rotation: Difference between revisions
From embeddedTS Manuals
(Created page with "Under Yocto xrandr can be used to rotate the screen at any time: <source lang=bash> export DISPLAY=:0 xrandr --rotate left xrandr --rotate right xrandr --rotate normal xrandr...") |
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Under Yocto xrandr | Under Yocto you can use xrandr to rotate the screen: | ||
<source lang=bash> | <source lang=bash> | ||
export DISPLAY=:0 | export DISPLAY=:0 | ||
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</source> | </source> | ||
Under Debian or Ubuntu the | Under Debian or Ubuntu you can rotate the screen in the Xorg.conf. Edit the file /etc/X11/xorg.conf and append this to the end: | ||
<source lang=bash> | <source lang=bash> | ||
Section "Device" | Section "Device" | ||
| Line 17: | Line 17: | ||
</source> | </source> | ||
After the display is rotated you will also need to rotate a touchscreen if this is being used. This example matches the CCW rotation, but swapaxes or the invertx/y options will need to be adjusted for other rotations. | |||
<source lang=bash> | <source lang=bash> | ||
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Option "InvertY" "off" | Option "InvertY" "off" | ||
EndSection | EndSection | ||
</source> | |||
On newer X11 releases libinput is used instead of the evdev driver. To rotate with Debian 10 and above this will require changing the [https://wiki.ubuntu.com/X/InputCoordinateTransformation coordinate transormation matrix]. Edit /etc/X11/Xsession.d/10x11-ts-calibration and add the transformation matrix for your rotation to the end of the script. Eg, for counter clockwise rotations add: | |||
<source lang=bash> | |||
xinput set-prop "ADS7846 Touchscreen" 'Coordinate Transformation Matrix' 0 -1 1 1 0 0 0 0 1 | |||
</source> | </source> | ||
Revision as of 10:19, 8 February 2021
Under Yocto you can use xrandr to rotate the screen:
export DISPLAY=:0
xrandr --rotate left
xrandr --rotate right
xrandr --rotate normal
xrandr --rotate inverted
Under Debian or Ubuntu you can rotate the screen in the Xorg.conf. Edit the file /etc/X11/xorg.conf and append this to the end:
Section "Device"
Identifier "fbdev display"
Driver "fbdev"
Option "Rotate" "CCW"
EndSection
After the display is rotated you will also need to rotate a touchscreen if this is being used. This example matches the CCW rotation, but swapaxes or the invertx/y options will need to be adjusted for other rotations.
Section "InputClass"
Identifier "axis inversion"
MatchIsTouchscreen "true"
# swap x/y axes on the device. i.e. rotate by 90 degrees
Option "SwapAxes" "on"
# Invert the respective axis.
Option "InvertX" "on"
Option "InvertY" "off"
EndSection
On newer X11 releases libinput is used instead of the evdev driver. To rotate with Debian 10 and above this will require changing the coordinate transormation matrix. Edit /etc/X11/Xsession.d/10x11-ts-calibration and add the transformation matrix for your rotation to the end of the script. Eg, for counter clockwise rotations add:
xinput set-prop "ADS7846 Touchscreen" 'Coordinate Transformation Matrix' 0 -1 1 1 0 0 0 0 1