[ltp] [Power management] DynamicClocks

[Christopher Sawtell]

On Tue, 12 Jul 2005 01:52, Tino Keitel wrote:
> On Mon, Jul 11, 2005 at 13:45:32 +0200, Henrik Brix Andersen wrote:
> > On Mon, 2005-07-11 at 13:32 +0200, Paul RIVIER wrote:
> > > I do monitor battery consumption and GPU temperature. Suspend/resume
> > > results in an increase of consumption (around 3 watts), and the GPU
> > > gets hotter (15 more =B0C). Last, if I quit xorg then restart it, I h=
ave
> > > the low consumption working back (13 watt / GPU : 50=B0C etc ...).
> >
> > I can not reproduce that problem here. Which kernel version? X11
> > version? Are you using radeonfb?
> >
> > > My laptop is a T42, ATI 9600.
> >
> > This is an X31, ATI Radeon Mobility M6 LY.
>
> The M6 LY doesn't support PowerPlay (the feature which is turned on by
> DynamicClocks), so you won't see any difference.

Interesting, My R40 says this:
/sbin/lspci | grep ATI
0000:01:00.0 VGA compatible controller: ATI Technologies Inc Radeon Mobilit=
y=20
M6 LY

grep -i Dynamic /var/log/Xorg.0.log
(**) RADEON(0): Option "DynamicClocks" "On"
(II) RADEON(0): Dynamic Clock Scaling Enabled

Very subjectively, temperature of machine on lap, it seems to be a lot cool=
er=20
when the DynamicClocks are one,

What's going on?
Is it telling me fibs?

=2D-
CS