https://bugzilla.novell.com/show_bug.cgi?id=717454
https://bugzilla.novell.com/show_bug.cgi?id=717454#c16
--- Comment #16 from Joey Lee 2011-09-28 15:18:16 UTC ---
I cann't reproduce the huge power leak on the sandybridge machine with
8086:0116 VGA.
But, still add i915_enable_rc6=1 and pcie_aspm=force to testing:
HP openSUSE 11.4 3.0.4-43.3-desktop i586 kernel (openSUSE:Tumbleweed)
battery discharge brightness lowest level wifi off Desktop 3D
effect enabled
enabled i915.i915_enable_rc6=1
powertop 11.3
boot after 10 minutes: 6.6 W long term: 8.4W
AC Plug-in power monitor(removed battery): 10 - 11 W
HP openSUSE 11.4 3.0.4-43.3-desktop i586 kernel (openSUSE:Tumbleweed)
battery discharge brightness lowest level wifi off Desktop 3D
effect enabled
enabled i915.i915_enable_rc6=1 pcie_aspm=force
powertop 11.3
boot after 10 minutes: 6.7 W long term: 8.3 W
AC Plug-in power monitor(removed battery): 9 - 10 W
Compare with didn't add parameters:
i915_enable_rc6=1 save 1.x W
pcie_aspm=force save 0.x W
On my machine, the above parameters useful for battery, but didn't have huge
improve like Thinkpad X220 with i7.
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