Fan control

[Corbin Simpson]

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Alex Deucher wrote:
> On Fri, Aug 22, 2008 at 7:38 AM, Martin <xorg-driver-ati at schwier.cc> wrote:
>> AFAIK this "powerplay" feature is not yet implemented. I would
>> appreciate if it would appear soon in the open source drivers as I think
>> it is an important feature for notebooks. My unthrottled radeon card
>> consumes much more energy and makes much more noise so I have to use
>> fglrx (which still doesn't work with xserver 1.5)
>>
>> Perhaps some developer could tell us if and when we can expect the
>> powerplay feature?
> 
> I have some experimental testing code in my personal git tree:
> http://cgit.freedesktop.org/~agd5f/xf86-video-ati/log/?h=agd-powerplay
> But due to limitations in X, there's no clean way to change the power
> mode on the fly.  I'm playing around improved powerplay support for
> radeon kms.

I can confirm that the code in the agd-powerplay branch shows changes of
3-5 degrees Celsius between each power state, and that compiz runs
*much* slower at the lower states, so the code does what it says. If you
need this support *now*, I keep a rebased and up-to-date version of this
support in my repo.

http://cgit.freedesktop.org/~csimpson/xf86-video-ati/log/?h=agd-powerplay

- --
~ Corbin Simpson
<MostAwesomeDude at gmail.com>
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