Red Hat Bugzilla – Bug 166027
Brightness goes up when unpluging power cable.
Last modified: 2014-03-16 22:55:25 EDT
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User-Agent: Mozilla/5.0 (X11; U; Linux i686; fr; rv:1.7.10) Gecko/20050720 Fedora/1.0.6-1.1.fc4 Firefox/1.0.6
Description of problem:
When I disconnect the power cable from my laptop, the brightness goes up. If I reconnect it, the brightness goes down.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Unplug the power cord
2. Plug the power cord
Actual Results: When I unplug the power cord the monitor brightness goes up, when I plugged the power back the brightness goes down.
Expected Results: The monitor brightness should go down when I unplug the power cord and it should goes up when I plug it in.
Created attachment 117777 [details]
The acpid log output during the test.
Check your BIOS. We don't have any default setup for this.
Etienne, you running gnome-power-manager? If you are, just change the settings
in gnome-power-preferences to set the brightness values when on AC and battery
to more suitable levels.
If you're not, try removing acpid and installing gnome-power-manager. You can
get it from my repo here:
I'll try it as soon as I have a chance.