I tried
$ lshal | grep system.hardware.vendor
I got system.hardware.vendor = 'Sony Corporation'
$ lshal | grep system.hardware.product
I got system.hardware.product = 'VGN-SR29VN_S'
Then in the file
/usr/share/hal/fdi/information/10freedesktop/10-laptop-panel-hardware.fdi
I added the following
<match key="/org/freedesktop/Hal/devices/computer:system.hardware.vendor"
string="Sony Corporation">
<match
key="/org/freedesktop/Hal/devices/computer:system.hardware.product"
string="VGN-SR29VN_S">
<merge key="laptop_panel.brightness_in_hardware"
type="bool">false</merge>
</match>
After reboot, I still can't change the brightness. Is it because my
laptop does not support the brightness in hardware, and the problem
comes from somewhere else ?
--
Cannot adjust brightness in Lucid Lynx
https://bugs.launchpad.net/bugs/555122
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