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| -rw-r--r-- | brightness-control/README.rst | 18 | ||||
| -rw-r--r-- | brightness-control/brightness-control.desktop | 11 | ||||
| -rw-r--r-- | brightness-control/brightness-control.png | bin | 0 -> 1863 bytes | |||
| -rw-r--r-- | brightness-control/brightness-control.sh | 41 |
4 files changed, 70 insertions, 0 deletions
diff --git a/brightness-control/README.rst b/brightness-control/README.rst new file mode 100644 index 0000000..89296a1 --- /dev/null +++ b/brightness-control/README.rst @@ -0,0 +1,18 @@ +Brightness control +================== + +Add the following line in `/etc/rc.local` to make it a startup job :: + + sudo chmod o+w /sys/class/backlight/<somefile>/brightness + +Now with a simple bash script we can `echo` suitable values to +above `brightness` file and change the brightness of the screen. It would +be a good practice to know the max brightness allowed by reading the file :: + + cat /sys/class/backlight/<somefile>/max_brightness + +Now to set brightness we use :: + + echo 50 > /sys/class/backlight/<somefile>/brightness + + diff --git a/brightness-control/brightness-control.desktop b/brightness-control/brightness-control.desktop new file mode 100644 index 0000000..9220e43 --- /dev/null +++ b/brightness-control/brightness-control.desktop @@ -0,0 +1,11 @@ +[Desktop Entry] +Keywords=Brightness control +Name=Brightness toggle +Comment=Brightness control +Exec=bash /opt/FOSSEE-netbook-tools/brightness-control/brightness-control.sh +Icon=/opt/FOSSEE-netbook-tools/brightness-control/brightness-icon.png +#Icon=/usr/share/icons/hicolor/scalable/status/xfpm-brightness-lcd.svg +Terminal=false +Type=Application +MimeType=text/plain +Categories=GTK;Other; diff --git a/brightness-control/brightness-control.png b/brightness-control/brightness-control.png Binary files differnew file mode 100644 index 0000000..72b0d68 --- /dev/null +++ b/brightness-control/brightness-control.png diff --git a/brightness-control/brightness-control.sh b/brightness-control/brightness-control.sh new file mode 100644 index 0000000..79ff4d9 --- /dev/null +++ b/brightness-control/brightness-control.sh @@ -0,0 +1,41 @@ +#!/bin/bash + +# A simple script to control screen brightness using 'notify send' +# copyright Srikant Patnaik +# GNU GPLv3 + +# Three brightness modes +brightness_max=250 +brightness_med=160 +brightness_low=80 + +# A file to store previous brightness value +status_file=/tmp/previous_brightness + +# If running for first time, then create the status file with med value for brightness +if [ ! -f $status_file ]; +then + echo $brightness_med > $status_file +fi + +previous_brightness=$(cat $status_file) + +if (( "$previous_brightness" == "80" )); +then + echo $brightness_med > /sys/class/backlight/pwm-backlight.0/brightness + #notify-send "medium brightness" + echo -n "medium brightness" | osd_cat --font='-b&h-lucida-medium-r-normal-*-34-*-*-*-p-*-iso10646-1' --color=green --pos=top --align=right --offset=50 --indent=50 -d 1 + echo $brightness_med > $status_file + +elif (( "$previous_brightness" == "160" )); +then + echo $brightness_max > /sys/class/backlight/pwm-backlight.0/brightness + #notify-send "full brightness" + echo -n "full brightness" | osd_cat --font='-b&h-lucida-medium-r-normal-*-34-*-*-*-p-*-iso10646-1' --color=green --pos=top --align=right --offset=50 --indent=50 -d 1 + echo $brightness_max > $status_file +else + echo $brightness_low > /sys/class/backlight/pwm-backlight.0/brightness + # notify-send "low brightness" + echo -n "low brightness" | osd_cat --font='-b&h-lucida-medium-r-normal-*-34-*-*-*-p-*-iso10646-1' --color=green --pos=top --align=right --offset=50 --indent=50 -d 1 + echo $brightness_low > $status_file +fi |
