ubuntu-x-swat team mailing list archive

[Luis Silva <lacsilva@xxxxxxxxx>]

Public bug reported:

Binary package hint: xserver-xorg-video-radeon

By using powertop and reading the radeon/feature page on x.org I managed to reduce the power consumption when on batery by about 4W on my laptop (from about 22W to 18W). I just followed the recommendations on:
http://www.x.org/wiki/RadeonFeature
and did:
$ sudo -c sh 'echo "auto" >  /sys/class/drm/card0/device/power_profile'

This solution, if it doesn't trigger problems for anyone, should be made
either the default or easily configurable through some file in /etc.

** Affects: xserver-xorg-video-ati (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/771963

Title:
  graphics card uses more power than needed when on batery