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Enable DynamicClocks in your Xserver to reduce temperature !
Posted: Wed Jun 08, 2005 2:24 pm
by 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
Posted: Mon Jul 11, 2005 5:10 am
by 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
Posted: Mon Jul 11, 2005 8:31 am
by 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
Posted: Sat Jul 16, 2005 7:59 am
by 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