Comment 22 for bug 1391153

Revision history for this message
penalvch (penalvch) wrote : Re: Thnikpad X220 - brightness control doesn't work

narel, the next step is to fully commit bisect from your prior working kernel to 3.16 in order to identify the last good kernel commit, followed immediately by the first bad one. This will allow for a more expedited analysis of the root cause of your issue. Could you please do this following https://wiki.ubuntu.com/Kernel/KernelBisection ? Please note, finding adjacent kernel versions is not fully commit bisecting.

Thank you for your understanding.

Helpful bug reporting tips:
https://wiki.ubuntu.com/ReportingBugs