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
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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