Mailinglist Archive: radeonhd (426 mails)

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Re: [radeonhd] [PATCH] PM patches: logic fix, feature, cleaning, memory downclocking
  • From: Rafał Miłecki <zajec5@xxxxxxxxx>
  • Date: Sun, 31 May 2009 00:01:38 +0200
  • Message-id: <b170af450905301501o21c05de9v1af5f8fc0355c369@xxxxxxxxxxxxxx>
2009/5/29 David C. Rankin, J.D.,P.E. <drankinatty@xxxxxxxxxxxxxxxxxx>:
       I have some good news and I have some bad news. I did some additional
testing
with compiz and on cube rotate, I can't view the cube-caps any longer (the
cube keeps jumping around) and when trying to rotate the cube, it will not
rotate all the way around. It gets roughly 1/2 - 3/4 way around and then
stops and you are left on desktop 3 or 4. Strange, I haven't seen that with
the radeonhd driver before.

Thanks for your testing. It really shows us that downclocking Memory
even by 50% can cause problems. I was wondering if this can happenw
thi 50% only.

So the only solution is to implement real power saving in KMS as Alex
explained. We should calculate all clocks using current state of
usage: outputs, engines, 2D, 3D.

Anyway, can ANYONE comment my patches? I belive first and third should
really be applied. Second and fourth optionally (as the allow to
manually enable additional, not always working feature). Does someone
care about radeonhd development?

--
Rafał Miłecki
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