On Mon, 2012-07-30 at 09:33 -0700, Keith Packard wrote:
James Bottomley James.Bottomley@HansenPartnership.com writes:
OK, I've run the bisect as far as I can. It looks to be in the drm tree. Unfortunately, this tree has several merge points, some of which go further back than v3.4. Unfortunately, once the bisect steps back before 3.4, we lose the changes that gave us the power savings, making further debugging impossible
What machine is this on? There are a few 'disable some power savings' patches in that list to work around issues on various machines; knowing what machine you're using can isolate which ones might have had some effect on power usage...
Lenovo X220i
The display device is
00:02.0 VGA compatible controller: Intel Corporation 82845G/GL[Brookdale-G]/GE Chipset Integrated Graphics Device (rev 03) (prog-if 00 [VGA controller]) Subsystem: Giga-byte Technology Device 2562 Flags: bus master, fast devsel, latency 0, IRQ 16 Memory at e0000000 (32-bit, prefetchable) [size=128M] Memory at e8200000 (32-bit, non-prefetchable) [size=512K] Expansion ROM at <unassigned> [disabled] Capabilities: <access denied> Kernel driver in use: i915
James