[Bug 49981] On HD6850, Power Profile doesn't change if 2 screen is attached.

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Tue Oct 2 06:14:21 PDT 2012


--- Comment #15 from Alex Deucher <agd5f at yahoo.com> ---
(In reply to comment #14)
> I don't think that is correct. It can clearly be seen in Windows that Barts
> uses different idles for multi head than it does for single head, but uses
> the same mid and high. Cayman has a different system to barts too I suspect.

Windows has a very different implementation at the moment, but uses the tables
in a similar manor.

> Isn't that dangerous? It makes the card operate outside of the bios table
> profiles. You would, in some cases, be increasing the memory clock without
> increasing the voltage.

Good catch.  Fixed in v3 of the patch.

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