Displaying 1 result from an estimated 1 matches for "i915_enable_fbc".
2012 Aug 03
5
CentOS 6 : Tip for significantly increasing battery life / reducing power consumption (Thinkpad X220 Tablet)
...ng it. I just wanted
to share with the list one of the changes which gave me the most
significant improvement.
As per http://www.williambrownstreet.net/blog/?p=387, add the
following kernel arguments to the GRUB boot configuration:
pcie_aspm=force i915.i915_enable_rc6=1 i915.lvds_downclock=1
i915.i915_enable_fbc=1
(in /boot/efi/EFI/redhat/grub.conf since I use EFI,
/boot/grub/grub.conf otherwise)
As measured using PowerTop, this made the power consumption decrease
from 20W to 11W !
(I had already decreased it from 25W to 20W with the usual tips of
disabling hardware, shutting down services, switching tun...