Re: [PATCH 0/9] drm/radeon/kms: update pm code

["Klaus Doblmann B.A." <klaus.doblmann@gmail.com>]

On Sat, 8 May 2010 11:29:10 -0400
Alex Deucher <alexdeucher@gmail.com> wrote:

> On Sat, May 8, 2010 at 7:14 AM, Klaus Doblmann B.A.
> <klaus.doblmann@gmail.com> wrote:

> > the profile setting works but I can't check which clock speeds are
> > set as I don't get any feedback (dmesg) anymore (Someone have any
> > input on this?). The temps are unaffected whether I use the low or high
> > profile, the only way I can tell that some things are working is by a
> > 2000 fps-difference when running glxgears (something like 4000 on low
> > and 6000 on high). I also attached a wattmeter to my my machine and the
> > wattage alternates but I think I'm getting something along the lines of
> > a 10W decrease in power consumption - it's very hard to tell, though.
> > dynpm is a bit more effective and I even get lower temps (just under
> > 50° compared to over 53 with the profile settings) but it's unusable
> > right now as I already mentioned.
> >
> > All in all very nice work so far (this goes for all of you who've
> > worked on radeon KMS PM!) - with the latest set of patches this is the
> > first "revision" of KMS PM that actually "works" on my machine :)
> >
> 
> Thanks for testing; we are definitely planning on further
> improvements, this is just a step on the way.   The power drops
> further when your monitors go off so that will save additional power
> when your machine is idle.  If you want to see the state transitions,
> revert this patch:
> http://people.freedesktop.org/~agd5f/pm-drt/0009-drm-radeon-kms-pm-make-pm-spam-debug-only.patch
> However, it will spam your kernel log.
> 
> Alex
> 

Hi Alex,

thanks for the suggestion!
It seems I spoke a bit too soon about everything working. I suspended
my machine and now came back after a few hours and it seems the latest
patches (well, I only could test the pm code in linus' tree of -34 up
to now due to display corruptions so there's a lot of changes since
then) in d-r-t killed suspend for me
- the machine doesn't come back up and hardlocks. Too bad I can't find
anything about it in my logs :(

Klaus


-- 
Klaus Doblmann B.A. - http://straightrazorguy.net - FSF member #7570
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