Bug 50327

Way to reproduce:
Install Linux and use the radeon drivers, check the temperatures.

Please attach a copy of your vbios:

(as root)
(use lspci to get the bus id)
cd /sys/bus/pci/devices/<pci bus id>
echo 1 > rom
cat rom > /tmp/vbios.rom
echo 0 > rom

Created attachment 62102 [details]
vbios.rom of HP Compaq 615 laptop

As requested the vbios.rom.
Thanks for your quick answer.

You should be able to force the GPU to low clocks by selecting the low power mode:
sudo bash -c "echo low > /sys/class/drm/card0/device/power_profile"

See this link for more info:
http://wiki.x.org/wiki/RadeonFeature#KMS_Power_Management_Options

I already tried that, that but that doesn't change anything. 
As I found out, it is not the GPU that is overheating, it is the CPU. For some reason unknown to me the CPU temperature is about 15-20°C higher when using the radeon driver compared to the Catalyst driver, which means that my system idles at temperatures that it normally only reaches when under heavy load, with going into critical temperature range when putting the system under heavy load with the radeon drivers enabled.

Is there also a difference in CPU usage as reported e.g. by top? If so, comparing system profiles obtained with perf, sysprof or oprofile between the scenarios might point to areas that could be improved.

Otherwise, maybe try comparing the distribution of CPU clock speeds / C-states between the scenarios.

I can confirm this bug with the same laptop and Debian Wheezy using xorg 1.12 with the radeon driver everything up-to-date as of today (2012-06-02).

Same problem here with Debian Wheezy.

Last week I had to remove the fglrx-driver (doesn't support 

lspci | grep vga
01:05.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI RS780M/RS780MN [Mobility Radeon HD 3200 Graphics]

anymore) and installed the radeon driver.


From this moment on CPU temperature (CPU idles at 5–10%) raised from ~60 to ~75 degrees – even with 

cat /sys/class/drm/card0/device/power_profile
low

Same probleme here with HP Compaq 625 Laptop.

ibruell@bruell-mobile:~$ lspci|grep VGA
01:05.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI RS880M [Mobility Radeon HD 4200 Series]

ibruell@bruell-mobile:~$ dpkg -l "*radeon*"
Gewünscht=Unbekannt/Installieren/R=Entfernen/P=Vollständig Löschen/Halten
| Status=Nicht/Installiert/Config/U=Entpackt/halb konFiguriert/
         Halb installiert/Trigger erWartet/Trigger anhängig
|/ Fehler?=(kein)/R=Neuinstallation notwendig (Status, Fehler: GROSS=schlecht)
||/ Name                          Version                       Beschreibung
+++-=============================-=============================-==========================================================================
ii  libdrm-radeon1:i386           2.4.33-3                      Userspace interface to radeon-specific kernel DRM services -- runtime
ii  radeontool                    1.6.2-1.1                     utility to control ATI Radeon backlight functions on laptops
ii  xserver-xorg-video-radeon     1:6.14.4-5                    X.Org X server -- AMD/ATI Radeon display driver

ibruell@bruell-mobile:~$ uname -r
3.6.2-030602-generic

Same problem with a Thinkpad Edge 13. Cannot install fglrx anymore (no support for RS880M), and changing /sys/class/drm/card0/device/power_profile does not help.

CPU load is below 10%, but laptop is very hot, and fan is running constantly.

robi@edge:~$ lspci|grep VGA
01:05.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI RS880M [Mobility Radeon HD 4200 Series]

robi@edge:~$ dpkg -l "*radeon*"
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name                          Version             Architecture        Description
+++-=============================-===================-===================-================================================================
ii  libdrm-radeon1:amd64          2.4.33-3            amd64               Userspace interface to radeon-specific kernel DRM services -- ru
ii  radeontool                    1.6.2-1.1           amd64               utility to control ATI Radeon backlight functions on laptops
ii  xserver-xorg-video-radeon     1:6.14.4-5          amd64               X.Org X server -- AMD/ATI Radeon display driver

I have the same problem on Asus laptop with Mobility Radeon HD 3200 video. Temperature and fan speed don't change on low or mid profile in my Ubuntu 12.10

Same problem here with a Macbook Pro 8,2 on Debian with kernel 3.8.5-1~experimental.1.

00:02.0 VGA compatible controller [0300]: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0116] (rev 09)
01:00.0 VGA compatible controller [0300]: Advanced Micro Devices [AMD] nee ATI Whistler [AMD Radeon HD 6600M Series] [1002:6741]

Using low power profile does not work for me.

Applying the changes against 3.8.13 as stated in https://bugs.freedesktop.org/show_bug.cgi?id=49981#c30 lets the low power profile change the frequencies. The temperatures drop around 10-15°C.

I would like to test that, but have no clue how to apply those changes.
Would be nice if someone can give me instructions on that.

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