Comment 166 for bug 1283938

Ubuntuser (ubuntuser1404) wrote :

On the previous 12.04 (tested for a short time), the problem was not happening. The point is that with the release 12.04, there was a serious over heating problem with the open drivers.

With the property AMD drivers (better if version > 14.6, previous drivers gave problem to the brightness regulation) the problem is not present. But the official AMD driver has a really bad performances.

With the open driver the battery has a duration of 3:50 h. With the property driver 1:20 h.
I also tried the last 14.10 beta version, the problem is not solved.

Can you please explain how to apply this fix: https://bugzilla.kernel.org/show_bug.cgi?id=76761#c3

Thank you again for your time.