Mailinglist Archive: radeonhd (426 mails)

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Re: [radeonhd] [PATCH] PM patches: logic fix, feature, cleaning, memory downclocking
  • From: "David C. Rankin, J.D.,P.E." <drankinatty@xxxxxxxxxxxxxxxxxx>
  • Date: Fri, 29 May 2009 00:41:01 -0500
  • Message-id: <200905290041.02041.drankinatty@xxxxxxxxxxxxxxxxxx>
On or about Friday 29 May 2009 at approximately 00:01:26 Rafał Miłecki
2009/5/29 David C. Rankin, J.D.,P.E. <drankinatty@xxxxxxxxxxxxxxxxxx>:

       That's what I needed to know. I'm am not familiar with 'git' and

git checkout -t -b downclocking origin/master
git am ~/archlinux/radeonhd/patches/*patch

parts were the parts I knew nothing about. I'll pull the patches, apply
and report back. Something really has to give here. The heat is
unbearable. To get the actual temp data, I have a digital multimeter with
a great surface temperature probe on it ( Craftsman Model No. 82400 ) and
I took the temperature readings on the left palm rest and left fan
discharge of my laptop with the radeonhd driver active. The results:

Left Palm Rest Temp: 96 Deg. F

Left Fan Discharge: 147 Deg. F

       The inside of this box is cooking.... That's with:

 Option       "ForceLowPowerMode"
 Option       "LowPowerModeEngineClock" "140000"

       I'll keep my fingers crossed and report back.

Nice, tests with your multimeter would be absolutely great. You may
also try to reduce EngineClock later. For example change it from
140000 to 120000. If it doesn't cause any corruptions you can still
try decreasing that. Don't worry about values you may use 139999,
139998, 139997, end so on.AtomBIOS will round it to something

Rafał Miłecki

Uh oh,

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.

The good news is I went ahead an used the multimeter again to confirm
temps. Still 96 Deg. F on the left palm rest and 147 Deg. F on the left fan
discharge. I'll drop the EngineClock to 120000 and test again.

David C. Rankin, J.D.,P.E.
Rankin Law Firm, PLLC
510 Ochiltree Street
Nacogdoches, Texas 75961
Telephone: (936) 715-9333
Facsimile: (936) 715-9339
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