Public bug reported:
Instead of the brightness changing, I just get this output in the logs:
Aug 17 00:01:49 ubuntu kernel: [ 8335.884355] ACPI: Failed to switch the
brightness
Kernel: Linux version 2.6.31-5-generic (bui...@crested) (gcc version
4.4.1 (Ubuntu 4.4.1-1ubuntu1) ) #24-Ubuntu SMP Sat Aug 1 12:47:58 UTC
2009
Ubuntu Version:
Description: Ubuntu karmic (development branch)
Release: 9.10
** Affects: ubuntu
Importance: Undecided
Status: New
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Brightness Keys do not work on Lenovo U350
https://bugs.launchpad.net/bugs/414658
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