Safe to say this is a very old unsupported version. So "won't fix".
** Changed in: mutter (Ubuntu)
Status: Confirmed => Won't Fix
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https://bugs.launchpad.net/bugs/818204
Title:
high number of wakeups in powertop
Status in mutter package in Ubuntu:
Won't Fix
Bug description:
Mutter seems to be suffering from the same issue that compiz was
suffering a while ago.
Here is the compiz bug that was fixed:
https://bugs.launchpad.net/ubuntu/+source/compiz/+bug/681696
My description would be exactly the same as that bug.
While running on battery, with no other causes of wakeups (idle,
everything else closed), powertop shows i915 doing most wakeups
(~30-40). Mutter does not appear in the powertop list, i915 appears
instead.
As soon as I close mutter, the '[i915] <interrupt>' line disappears
and the overall wakeup count goes down.
I am using mutter 3.0.2.1.
Here is the powertop output with mutter running:
Top causes for wakeups:
64.3% ( 44.4) [i915] <interrupt>
7.5% ( 5.2) kworker/0:1
As soon as I close it:
Top causes for wakeups:
18.1% ( 4.6) kworker/0:1
15.6% ( 4.0) [ahci] <interrupt>
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