[Intel-gfx] Option "NoDRI"
axp at shacknet.at
Wed Mar 18 02:58:03 PDT 2009
i915 at pci:0000:00:02.0 is responsible for 62.4% of wakeups (~850 wakeups
per second) if i set "Option "NoDRI"" my system consumes 20 % less
power (now ~9-11W, after NoDRI ~7-8W) but mobility is gone since no
suspend works, this seems to be a known issue see:
To reduce consumption and increase battery life, try this:
You could try to disable some things:
in /etc/X11/xorg.conf add:
Option "NoDRI" # breaks suspend
Maybe this issue is fixed in newer Versions of the driver/kernel/libdrm
lenovo X301 2774-LEG
2.4.1-0ubuntu7~intrepid Userspace interface to
2.4.1-0ubuntu7~intrepid Userspace interface to kernel
DRM services -
ii xserver-xorg-video-intel 2:2.5.1-1ubuntu5~intrepid
Description: Ubuntu 8.10
P.s.: there is some intel-gfx testing ppa in Ubuntu (seems to be version
2.6 of the x-driver) but this doesn't solve the problem
They seem rather outdated
another link which i haven't tried yet:
is this issue about to being addressed in upcoming releases, or has it
been already fixed? maybe updating to a new kernel?
> Jin, Gordon wrote:
>> axp wrote on Tuesday, March 17, 2009 8:04 PM:
>>> i have a lenovo X301 with intel GMA X4500MHD, and if i use Option
>>> "NoDRI" suspend won't work. are there any enhancements or fixes in the
>>> newer versions?
>> Why do you use "NoDRI"?
> Because if is set this option battery lifetime is way much better, about
> 20% power usage decrease, according to powertop, the kernel doesn't wake
> up that often.
> Intel-gfx mailing list
> Intel-gfx at lists.freedesktop.org
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