[Bug 67982] After boot, the APU is powered with its maximum voltage (trinity/ARUBA)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=67982

--- Comment #4 from Kertesz Laszlo <laszlo.kertesz at gmail.com> ---
I use the mainline linux kernel (now 3.12 rc1+) merged with your drm-fixes-3.12
already.
This behavior is there and seemingly unchanged since i tried dpm with the
kernel 3.11 when was in rc stage.

Here is what i get from sensors and the debugfs radeon info:

radeon-pci-0008
Adapter: PCI adapter
temp1:         +0.0°C  (crit = +120.0°C, hyst = +90.0°C)

it8728-isa-0228
Adapter: ISA adapter
in0:          +0.90 V  (min =  +0.00 V, max =  +3.06 V)
in1:          +1.64 V  (min =  +0.00 V, max =  +3.06 V)
in2:          +2.03 V  (min =  +0.00 V, max =  +3.06 V)
in3:          +2.04 V  (min =  +0.00 V, max =  +3.06 V)
in4:          +2.02 V  (min =  +0.00 V, max =  +3.06 V)
in5:          +2.22 V  (min =  +0.00 V, max =  +3.06 V)
in6:          +2.22 V  (min =  +0.00 V, max =  +3.06 V)
3VSB:         +3.36 V  (min =  +0.00 V, max =  +6.12 V)
Vbat:         +3.31 V
fan1:        1573 RPM  (min =    0 RPM)
fan2:        1046 RPM  (min =    0 RPM)
fan3:           0 RPM  (min =    0 RPM)
fan4:           0 RPM  (min =    0 RPM)
fan5:           0 RPM  (min =    0 RPM)
temp1:        +31.0°C  (low  = +127.0°C, high = +127.0°C)  sensor = thermistor
temp2:         -8.0°C  (low  = +127.0°C, high = +127.0°C)  sensor = thermistor
temp3:        +14.0°C  (low  = +127.0°C, high = +127.0°C)  sensor = Intel PECI
intrusion0:  OK

Radeon HD 7560D clocks:
uvd    vclk: 0 dclk: 0
power level 0    sclk: 30400 vddc: 912

in0 is the CPU voltage - 0.9-1.44 volts, 1.44 is reached only in the erroneous
state sometimes, normal operations are between 0.9-1.36v. Troubling is this
initial high state because if you dont notice it youll get consitently high
temperatures because of the driver.
BTW when the dynamic voltage works, i have pretty much the same temperature as
with fglrx.

I wonder how vddc works - is it a totally separate voltage controlled
separately by the radeon driver? I have seen it 1.1 v or something when in0 was
0.9 (vdpau playback for example).
Or in0 and vddc are the same thing, and its control is somehow shared between
the acpi-cpufreq and radeon drivers?

-- 
You are receiving this mail because:
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/dri-devel/attachments/20130917/72f878e8/attachment.html>