Comment 57 for bug 1098216
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| renze - ubuntu (renze-nicolai) wrote Re: Regression in brightness control on Lenovo Thinkpad X230 and X1 Carbon | #57 |
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(Get the code!)
Same problem on Lenovo Thinkpad T530:
Changing the screen brightness from the control panel applet "Brightness and lock" does work, changing the brightness using the FN key does not.
I noticed that when I set the brightness to 100% in the control panel applet the fn keys do not work at all (slider that appears only moves one step to the left, brightness does not change) and when I put the brightness on 50% the slider works between 20% and 80%.
I did not install any patch and I am running Ubuntu 13.04, on Ubuntu 12.10 everything worked flawless (If I don't count the little bug in thinkpad acpi that prevents me from turning the thinklight on using acpi :) )