I am trying to change the brightness of my laptop using xrandr
, but I get this error.
Here's the segment:
janreggie@janreggie-T100TA:~$ xrandr
Screen 0: minimum 8 x 8, current 1368 x 768, maximum 32767 x 32767
DSI1 connected primary 1368x768+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
1368x768 60.10*+
DP1 disconnected (normal left inverted right x axis y axis)
HDMI1 disconnected (normal left inverted right x axis y axis)
VIRTUAL1 disconnected (normal left inverted right x axis y axis)
janreggie@janreggie-T100TA:~$ xrandr --output DSI1 --set backlight 10
X Error of failed request: BadName (named color or font does not exist)
Major opcode of failed request: 140 (RANDR)
Minor opcode of failed request: 11 (RRQueryOutputProperty)
Serial number of failed request: 34
Current serial number in output stream: 34
What am I doing wrong? Any help would be appreciated.
My laptop is an ASUS Transformer T100TA, installed per Lubuntu 15.10 ISO.
Best Answer
Xrandr
has brightness parameter not backlight. You can set brightness level (eg. 0.9):or use solution from here