Comme=
nt # 34
on bug 11148=
2
from Dieter N=C3=BCtzel
(In reply to Shmerl from comment #33)
> (In reply to Dieter N=C3=BCtzel from comment #32)
> >=20
> > Hello 'Shmerl',
> >=20
> > can you (and the other) please recheck with 'auto', too?
> > I think we have the 'same' problem with Polaris, too.
>=20
> Can you clarify please, what scenario exactly do you want me to test? =
When
> computer boots (or resumes), the value is "auto" by default.=
Expected.
> On "auto" after
> boot, idle power consumption is high (30+W).
To high.
With 1 or more identical monitors?
Compare Alex's latest >=3D2 identical monitor patches.
I get the same even on Polaris (Alex?).
> After resume, with that "auto"
> value, the screen starts flickering,
That is currently the expected 'auto' clk transition bug.
If someone set the clks to low/high flickering can't happen.
> I'll check what power consumption it
> has at that point a bit later.
That's the 'new' interesting part that Andrew, Robert and you find with Nav=
i.
The suspend / resume (with later high/low) 'cycle' which led to much lower
power consumption.
Which I couldn't verify on my Polaris system (with 2 identical HDMI monitor=
s)
currently.
With 'low' and 2 identical HDMI displays I get the below under
'amd-staging-drm-next':
GFX Clocks and Power:
300 MHz (MCLK)
300 MHz (SCLK)
600 MHz (PSTATE_SCLK)
1000 MHz (PSTATE_MCLK)
750 mV (VDDGFX)
32.174 W (average GPU)
PSTATE_SCLK and PSTATE_MCLK do NOT drop and much to high W.
NO flickering due to 'low'.
I'll point Alex to this thread.