Ubuntu
xserver-xorg-video-ati package

  1. Bug #771963
  2. Comment #0

Comment 0 for bug 771963

Revision history for this message
Luis Silva (lacsilva) wrote : graphics card uses more power than needed when on batery

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.