James Bottomley James.Bottomley@HansenPartnership.com writes:
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
I don't see a whole lot of context from the elided email bits you'd sent previously; can you summarize the issue in terms of how much power savings you're losing, how you're measuring it and what's going on in the system when the power savings is different?
Have you tried measuring power with X not running? How about with compositing and other desktop effects disabled?