svn commit: r277487 - in head/sys: dev/drm2 dev/drm2/i915 dev/drm2/radeon modules/drm2/i915kms

[Adrian Chadd]

Try enabling rc6 sleep state in i915 and see what happens.

I found that the package wasn't going to sleep without it.

Bapt also found the same thing. I haven't chased up to see if enabling rc6
restored thing.

Which hardware is this on?


Adrian
On Feb 1, 2015 11:56 AM, "Gleb Kurtsou" <gleb at freebsd.org> wrote:

> On (22/01/2015 12:15), Ivan Klymenko wrote:
> > В Thu, 22 Jan 2015 11:18:37 +0300
> > "Max N. Boyarov" <zotrix at bsd.by> пишет:
> >
> > > On Wed, Jan 21, 2015 at 7:10 PM, Konstantin Belousov
> > > <kib at freebsd.org> wrote:
> > > > Author: kib
> > > > Date: Wed Jan 21 16:10:37 2015
> > > > New Revision: 277487
> > > > URL: https://svnweb.freebsd.org/changeset/base/277487
> > > >
> > > > Log:
> > > >   An update for the i915 GPU driver, which brings the code up to
> > > > Linux commit 4d93914ae3db4a897ead4b.  Some related drm
> > > > infrastructure changes are imported as needed.
> > > >
> > > >   Biggest update is the rewrite of the i915 gem io to more closely
> > > >   follow Linux model, althought the mechanism used by FreeBSD port
> > > > is different.
> > > >
> > > >   Sponsored by: The FreeBSD Foundation
> > > >   MFC after:    2 month
> > >
> > > Hi, after this commit i have many error messages like:
> > >
> > > error: [drm:pid1121:gen6_sanitize_pm] *ERROR* Power management
> > > discrepancy: GEN6_RP_INTERRUPT_LIMITS expected 18070000, was 18000000
>
> I'm seeing the same errors. I've also noticed that my laptop started to
> overheat (up to 96 C). It was mostly idle, cpu usage at few percent,
> freq lowered by powerd, nothing cpu intensive running, web browser,
> terminals, etc.
>
> My initial suspect was recent TSC changes regarding C2/C3 sleep states.
> But reverting this commit seems to get situation back to normal.
> Did anybody else experience similar issues?
>
>