*** This bug is a duplicate of bug 251665 ***
https://bugs.launchpad.net/bugs/251665
Can you start the following script after the graphical login and see if
you can set the brightness manually (start with the i option):
#!/bin/bash
while true; do
clear
echo "up = Screen Brightness Up"
echo "down = Screen Brightness Down"
echo "i = Initialize Hardware"
echo "q = Quit"
read -s -n1 key
clear
case "$key" in
$'\033')
read -s -n1 key; read -s -n1 key
case "$key" in
A)
xbacklight -time 0 -steps 1 -inc 10 2>/tmp/sonybright.log
;;
B)
xbacklight -time 0 -steps 1 -dec 10 2>/tmp/sonybright.log
;;
esac
;;
i)
xrandr --output LVDS --set BACKLIGHT_CONTROL native
;;
q)
clear
exit 0
;;
esac
done
--
vaio VGN-Z21WN brightness problem on 8.10 intrepid
https://bugs.launchpad.net/bugs/301802
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