11.10 Screen brightness doesn't react to AC power

Asked by Gannin on 2011-10-13

With 11.10, if I do not have the AC power plugged in, the screen is dim. If I plug the AC power in, the screen remains dim.

This worked with past versions of Ubuntu (10.10, 11.04). In past versions of Ubuntu, if I plugged in AC power, the screen would brighten up, and then if I unplugged AC power, the screen would dim to conserve battery.

Now the screen stays dim regardless of if AC power is plugged in or not. And if you adjust the brightness manually in System Settings, it doesn't save the change when you reboot.

Question information

Language:
English Edit question
Status:
Answered
For:
Ubuntu acpi Edit question
Assignee:
No assignee Edit question
Last query:
2011-10-13
Last reply:
2012-09-18

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