Does anyone know if radeonhd turns on clock gating for this chip, either by default or with an option ? -----Original Message----- From: David C. Rankin [mailto:drankinatty@suddenlinkmail.com] Sent: Friday, May 29, 2009 12:58 PM To: radeon Subject: Re: [radeonhd] [PATCH] PM patches: logic fix, feature, cleaning, memory downclocking Rafał Miłecki wrote:
2009/5/29 David C. Rankin, J.D.,P.E.
: Rafał,
That's what I needed to know. I'm am not familiar with 'git' and the
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 acceptable.
Rafał, I have created a baseline temperature comparison for testing purposes. It is located at: http://www.3111skyline.com/download/linux/radeonhd/temp-comparison Here is the baseline: Temperature Comparison Between the ATI/fglrx driver and OSS radeonhd driver Hardware: Toshiba P205D; AMD Turion(tm) 64 X2 Mobile Technology TL-58 ATI Technologies Inc RS690M [Radeon X1200 Series] RAM: 4G Driver/Operating Systems: fglrx (Ver. 8.532; 8-9 Release) - openSuSE 11.0; KDE3; Compiz radeonhd - Archlinux; KDE3; Compiz git checkout -t -b downclocking origin/master git am patches/*patch vi src/rhd_pm.c (set: #if 1) Log confirmation: (II) RADEONHD: version 1.2.5, built from git branch downclocking, commit 0de8b484 + changes Operating Temperatures: fglrx - openSuSE Left Palm Rest Temp: 89 Deg. F Left Fan Discharge: 122 Deg. F radeonhd - Archlinux Left Palm Rest Temp: 96 Deg. F Left Fan Discharge: 147 Deg. F -- 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 www.rankinlawfirm.com -- To unsubscribe, e-mail: radeonhd+unsubscribe@opensuse.org For additional commands, e-mail: radeonhd+help@opensuse.org -- To unsubscribe, e-mail: radeonhd+unsubscribe@opensuse.org For additional commands, e-mail: radeonhd+help@opensuse.org