Enable DynamicClocks in your Xserver to reduce temperature !

[AndreasMeier]

Hi folks,

I managed today to enable the Option "DynamicClocks" in my Xorg server.
I'm running Kubuntu Hoary on my Thinkpad T42, model UC2F1GE, ATI 7500 inside,
and I got temperatures around 47-50 degrees of the GPU with newest versions of powernowd and ibm_acpi installed.

Now after enabling the Option I have temperatures of 42-43 degrees !!
And this is a great success I think.

Have fun,
Regards,
Andreas

[tassou]

ok, I also use DynamicClocks and have good results. But does it still manage consumption after a suspend/resume for you ?

Tip : you can monitor your consumption when on batttery, with
cat /proc/acpi/battery/bat0/state

please let me know if your consumption is no higher after a suspend/resume.

thanx

tassou

[AndreasMeier]

You mean, after a clean first boot, check consumption with cat /proc/acpi/battery/bat0/state

then go to suspend (to what: ram or disk?) and resume the machine

and check consumption again ?

Regards
Andreas

[AndreasMeier]

@tassou,

I have checked the consumption with a clean boot and after suspend :

1.) clean boot
2.) check wether Dynamic Clocks is enabled in xorg.log in /var/log which is true
3.) watch cat /proc/acpi/battery/BAT0/state
Brightness lowest end : present rate : 13800mW
Brightness highest end: present rate : 16200mW

No WLAN, no bluetooth, no other apps activated

!!! you have to watch the values a certain time because values are changing

4.) Got into suspend to disc / hibernate
5.) resumed
6.) watch again
Brightness lowest end : present rate : 13700mW
Brightness highest end: present rate : 16300mW

So, in my opinion, Dynamic Clocks is working also after suspend.
I dont know, if my values are ok, or too high / too low.

Perhaps you can post your values as well to have a comparison.

Hope that helps so far,

regards
Andreas