2013-12-01 20:06 keltezéssel, Patrick Shanahan írta:

* Oszkó Albert [12-01-13 13:48]:

...

Yesterday I installed oS 13.1 and it went smooth. I was afraid of it because of the missing fglrx for my config - that is why I skipped oS 12.3, more precisely, went back 12.2 after a day's usage. I have an old ATI Radeon HD 4730 (RV770) video card. Now the fan is less loud than it was in 12.3, but noisy compared to the fglrx driver used in 12 2. Now I read an X.org page (http://www.x.org/wiki/RadeonFeature/) and found the following line

Select the profile by echoing the selected profile to /sys/class/drm/card0/device/power_profile.

What does that mean and how to do it? Now the profile is 'default' but I think 'mid' or 'low' would be sufficient for me. There is mostly text on my screen, no games at all.

echo <selected-profile> > /sys/class/drm/card0/device/power_profile

replace "<selected-profile>" with your selected profile

My desktop system has no .../power_profile but does have /sys/class/drm/card0/device/power/... My laptop has nvidia and does not have .../drm/....

I cannot verify that the advice you read is accurate for *your* system as I have no ATI systems.

gud luk,

Thanks for the hint. I have the file structure cited in the wiki. Unfortunately it is not clear for me, when and where this echoing should be done? Should I boot to runlevel 3, do the echoing and go on with booting to X? Albert

2013-12-01 22:02 keltezéssel, Patrick Shanahan írta:

* Oszkó Albert [12-01-13 14:40]:

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2013-12-01 20:06 keltezéssel, Patrick Shanahan írta: [...]

...

echo <selected-profile> > /sys/class/drm/card0/device/power_profile

replace "<selected-profile>" with your selected profile

My desktop system has no .../power_profile but does have /sys/class/drm/card0/device/power/... My laptop has nvidia and does not have .../drm/....

I cannot verify that the advice you read is accurate for *your* system as I have no ATI systems.

gud luk,

Thanks for the hint.

I have the file structure cited in the wiki. Unfortunately it is not clear for me, when and where this echoing should be done? Should I boot to runlevel 3, do the echoing and go on with booting to X?

You can do the "echo" anytime and probably should be done as root, but for it to take effect you would need to restart X, ie: change to runlevel 3 and back to runlevel 5. Reboot is *not* necessary.

Well, I tried it with the following settings, echo "auto", "mid", or "low" > /sys/class/drm/card0/device/power_profile Unfortunately no change in fan speed. Thanks for the help Albert

2013-12-01 22:12 keltezéssel, šumski írta:

On Sunday 01 of December 2013 19:47:13 Oszkó Albert wrote:

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Hi all,

Yesterday I installed oS 13.1 and it went smooth. I was afraid of it because of the missing fglrx for my config - that is why I skipped oS 12.3, more precisely, went back 12.2 after a day's usage. I have an old ATI Radeon HD 4730 (RV770) video card. Now the fan is less loud than it was in 12.3, but noisy compared to the fglrx driver used in 12 2.

Oszkó, you may want to try out the new radeon dynamic power management available since kernel version 3.11. It is easily activated by appending radeon.dpm=1 on the grub's kernel line. Note that this delivers automatic engine and memory frequency scaling, thus manual profiling is not needed (nor possible)

Cheers, Hrvoje

Hi, since the method I found, failed to work, I would try the one you suggested. You wrote: "It is easily activated by appending radeon.dpm=1 on

the grub's kernel line."

Where can I find it exactly? Thanks, Albert

2013-12-02 19:37 keltezéssel, šumski írta:

On Monday 02 of December 2013 19:29:05 Oszkó Albert wrote:

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Where can I find it exactly?

YaST -> Bootloader -> Bootloader options -> add the suggested parameters to 'Optional Kernel Command Line Parameter'

Cheers, Hrvoje

Looks like my system is insisting to that fan speed :-( Albert