:: Re: [DNG] Adjusting LCD backlight i…
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Autor: Florian Zieboll
Fecha:  
A: dng
Asunto: Re: [DNG] Adjusting LCD backlight in XFCE4
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On Thu, 18 May 2017 15:55:07 +1000
Ralph Ronnquist <ralph.ronnquist@???> wrote:

> Unless you've been there already,
> https://wiki.archlinux.org/index.php/Toshiba_Satellite_R830
> has a couple of suggestions. Especially if that's your model.


Hallo Lars,

if it really is a Toshiba, you could try this little script which I
once wrote for my precious Tecra 9000. If no value (0-7) is given as
argument, it simply cycles through the brightness levels, so it's
possible to assign a keyboard shortcut:


- ---snip---

#!/bin/bash
# toshiba laptop lcd brightness control
NEW="$@"
CURRENT=`cat /proc/acpi/toshiba/lcd | grep brightness\: | sed 's/[^0-9]*//g'`
if [ -n "$NEW" ] ; then
  if [[ "$NEW" != [0-7] ]] ; then
    echo -e "error: invalid value" && exit 0
  fi
elif [[ "$CURRENT" == "7" ]] ; then
  NEW=0
else
  NEW=$(($CURRENT+1))
fi
echo -e "brightness:\t\t"$NEW"\nbrightness_levels:\t8"  > /proc/acpi/toshiba/lcd 2> /dev/null &
echo "lcd brightness (0-7) set to "$NEW""

- ---snap---


libre Grüße,

Florian
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