Mailinglist Archive: radeonhd (330 mails)

["Ilyes Gouta" <ilyes.gouta@xxxxxxxxx>]

Hi,

> Not possible.  "PowerPlay" is inside Catalyst, not the BIOS.

I think that PowerPlay is the marketing term behind a very simple
concept: change the Vcore and the various frequencies (GPU and memory
controller) depending on the pm policy and the graphic card's BIOS
contains all the tables, predefined values for the != components, for
every kind of usage. Try to have a look on RBE, the Radeon Bios
Editor, I mentioned its URL in the previous e-mail.

> > 2. Wait for the proper PowerPlay support in radeonhd.
> >
> > Right?
>
> That would be best :P  Another option (normally) is to buy an aftermarket
> cooler, but that's not possible with a laptop.
>
>
> > I think power management is MANDATORY for graphics chips meant to be
> > embedded into laptops. Any way to put the pressure on AMD/ATI to open
> > up the documentation for such a feature?
>
> There has been pressure to open up their PowerPlay code, but they claim
> that's a trade secret. :P

What a non-sense... Maybe they're claiming so because of an IP or a
patent that they don't want to infringe on. It's plain stupid...
PowerPlay is *so* required for laptops. Heat means less chip lifetime,
and they have to give that up for the sake of the users. We don't want
to have an Nvidia-like fiasco (on the long term) with ATI chips.

Regards,
Ilyes Gouta.

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