[Solved?]ATI Power Consumption

Hi all,
I've recently installed ArchLinux (64 Bit) to my Asus K52JK (GPU Model: ATI Radeon HD5145).  On other distros I wd usually install the proprietary ATI drivers, but on Arch as recommended by the wiki I've installed the open source version.
Now here's my problem:
The proprietary version (at least on other distros like ubuntu, sabayon and etc.) had this power save feature, which basically turned the gpu down, when the computer is not connected to an ac-power source. As far as I understand the open source version doesn't have this feature (or maybe I somehow have overseen it), and thatswhy my computer consumes the battery power like crazy (the max. battery life I get is like 70 minutes, which with this power save feature of the proprietary drivers was nearly 3.5 hours) . Is there a similiar if not equivalent feature or some command line trickery, which will at least give me some reasonable battery run time?
(Just in case if it's relevant I'm using gnome as my desktop environment)
I'd be glad if you could help.Thanks in advance!
Last edited by tadevokle (2011-02-25 20:26:40)

https://wiki.archlinux.org/index.php/ATI#Powersaving
Is that what you're refering to? I just did this the other day. I use the dynpm method but didn't see if it takes battery into consideration or not. You may want 'profile' and 'auto' power_profile which checks for CPU activity and also battery. This is if you're using KMS. There's non-KMS methods too.
P.S. Not sure if you need git versions of open-source driver for this to work (but that's what I'm using and seems to be suggested by adding a radeon repo to your pacman.conf ala the ATI wiki. I got mine from AUR: xf86-video-ati-git)
Last edited by milomouse (2011-02-25 19:15:55)

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