Try typing the following command in a terminal:
xgamma -gamma 0.75
If that doesn't work you need to install xgamma from the repos.
I have posted my own solution here on setting it up:
http://ubuntuforums.org/showthread.php?p=4168042#post4168042
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Brightness Settings Don't Work
https://bugs.l
[Expired for hal (Ubuntu) because there has been no activity for 60
days.]
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Brightness Settings Don't Work
https://bugs.launchpad.net/bugs/76274
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ubuntu-
same problem on vgn-fe31z
here the problem is solved using smartdimmer (only with nvidia)
on feisty change /usr/lib/hal/scripts/hal-system-lcd-set-brightness
elif [ "$HAL_PROP_LAPTOP_PANEL_ACCESS_METHOD" = "sony" ]; then
# echo "{1..8}" > /proc/acpi/sony/brightness
# http://popies
Can confirm the same issue with my vaio S1XP.
DMI decode data:
Sony Corporation
VGN-S1XP(IT)
J0009F44
I guess my bug report:
https://bugs.launchpad.net/ubuntu/+source/gnome-power-manager/+bug/92478
and this one:
https://bugs.launchpad.net/ubuntu/+bug/103890
are duplicates.
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Brightness Setting
I'm not sure quite what you mean by does it work. Please clarify.
DMI data:
Sony Corporation
VGN-S4XP_B
J000VXDY
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Brightness Settings Don't Work
https://launchpad.net/bugs/76274
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This is more likely a 'hal' or kernel issue:
/usr/share/hal/scripts/hal-system-lcd-set-brightness
Currently has the following code for Sonys:
elif [ "$HAL_PROP_LAPTOP_PANEL_ACCESS_METHOD" = "sony" ]; then
# echo "{1..8}" > /proc/acpi/sony/brightness
# http://popies.net/sonypi
Setting this to Gnome-Power-Manager package,
** Changed in: Ubuntu
Sourcepackagename: None => gnome-power-manager
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Brightness Settings Don't Work
https://launchpad.net/bugs/76274
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I don't think you understand... I said the function keys *do* work.
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Brightness Settings Don't Work
https://launchpad.net/bugs/76274
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See https://wiki.ubuntu.com/LaptopTestingTeam/HotkeyResearch
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Brightness Settings Don't Work
https://launchpad.net/bugs/76274
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