[ltp] [Power management] DynamicClocks

[Greg Macek]

Paul RIVIER wrote:
>=20
>=20
> Greg Macek wrote:
>=20
>> What kind of temperature differences are you seeing when DynamicClocks=

>> is running vs. not? It says it's enabled for me, but I'm not sure what=

>> benefit I'm really seeing.
>>
>>
>> =20
>>
> With no DynamicClocks, and with no fan (cf my scripts, you should reall=
y
> give them a try, they work like a charm ;) ), my GPU - cat
> /proc/acpi/ibm/thermal : the 4=B0 value - remains stable at around 50 =B0=
C.
> With dynamicClocks, it reaches 60 =B0C and waste power (more than 1 wat=
t).
> Please let me tell you that under 55 =B0C, fan is *useless* and wastes =
0,7
> to 1 Watt, so if your fan is supported by the last ibm-acpi, you sould
> use my scripts (or yours if you do not like mines) to save power and
> avoid noise :)
>=20
> paul

I'll check out the scripts later this week when I have time to fiddle
with configuration stuff. Right now, my GPU temp is at 45 degrees C. I
have a T43 (not "p") with the ATI X300 chip, but not running the ATI
binary driver.