Your message dated Tue, 25 Dec 2012 16:30:32 +0000 with message-id <1356453032.21837.81.ca...@deadeye.wl.decadent.org.uk> and subject line Re: Bug#696531: Power saving regression on Sandy Bridge has caused the Debian Bug report #696531, regarding Power saving regression on Sandy Bridge to be marked as done.
This means that you claim that the problem has been dealt with. If this is not the case it is now your responsibility to reopen the Bug report if necessary, and/or fix the problem forthwith. (NB: If you are a system administrator and have no idea what this message is talking about, this may indicate a serious mail system misconfiguration somewhere. Please contact ow...@bugs.debian.org immediately.) -- 696531: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=696531 Debian Bug Tracking System Contact ow...@bugs.debian.org with problems
--- Begin Message ---Package: linux-image-3.6-trunk-amd64 Version: 3.6-1~experimental.1 Hi, On Dell Latitude E6220 (Sandy Bridge i5-2520M, integrated graphics), power saving stops working after some time. The symptoms are that idle power consumption goes from 7W to 28W (!), and Powertop reports that PC7 is never entered. A reliable way to reproduce it is to suspend the laptop, but it sometimes happens spontaneously. This is most possibly identical to https://bugs.freedesktop.org/show_bug.cgi?id=54089 -- Juliusz
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--- Begin Message ---Version: 3.7.1-1~experimental.1 On Tue, 2012-12-25 at 17:21 +0100, Juliusz Chroboczek wrote: > >> On Dell Latitude E6220 (Sandy Bridge i5-2520M, integrated graphics), > >> power saving stops working after some time. The symptoms are that idle > >> power consumption goes from 7W to 28W (!), and Powertop reports that PC7 > >> is never entered. A reliable way to reproduce it is to suspend the > >> laptop, but it sometimes happens spontaneously. > > > I expect that > > we'll have to wait for a backported bug fix in the 3.7.y stable series. > > It looks like it's fixed in linux-image-3.7-trunk-amd64 version > 3.7.1-1~experimental.1 -- at least I couldn't reproduce it in five minutes' > testing. Might be fixed by this: commit 20b46e59dd102665ce7168baa215e5b1ee66b69b Author: Daniel Vetter <daniel.vet...@ffwll.ch> Date: Thu Jul 26 11:16:14 2012 +0200 drm/i915: Only set the down rps limit when at the loweset frequency but I don't think we need to care exactly what fixed it. > (Now somebody is tweaking my cpufreq parameters whenver I unplug the cord, > but that's most probably a userspace issue, so not your problem.) I would tend to blame laptop-mode (or possibly BIOS settings). The kernel + udev should be enough to get cpufreq working properly. Ben. -- Ben Hutchings Every program is either trivial or else contains at least one bugsignature.asc
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