[Bug 31000] [rv700] powerplay efficiency

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Tue Mar 29 09:49:43 PDT 2011


--- Comment #12 from Roland Scheidegger <sroland at vmware.com> 2011-03-29 09:49:43 PDT ---
(In reply to comment #10)
> >Don't know what we really need to achieve Catalyst's level of efficiency.
> I think PCI Lane adjusment is the only one missing.

With the quoted reduced runtime, I doubt that would make that much difference.
Sounds more like an issue with clock gating? Maybe the driver does something
which prevents shutting down all blocks it could?
dynpm though doesn't really work, at least in my case I did not see any
downclock, not even once. But when you force low profile that apparently
shouldn't matter (not that this works too well neither, even with one display
I've never seen this happen without flicker).

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