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Q-collective Advocate
Joined: 22 Mar 2004 Posts: 2071
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Posted: Thu Nov 22, 2012 9:34 pm Post subject: Fan control on Dell Studio 1555 |
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After I moved from the fglrx drivers to the radeon drivers I note that my fans are running like crazy. I also note that the temperature is way higher than before, despite the louder blowing. So, there is probably inefficient cooling going on.
This is probably because I forgot some option in the kernel that regulates the GPU temperature. However, I'm at a loss as to how to fix it. Where do I start? |
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gabrielg Tux's lil' helper
Joined: 16 Nov 2012 Posts: 134
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Posted: Thu Nov 22, 2012 9:57 pm Post subject: |
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Maybe start here: http://wiki.gentoo.org/wiki/Power_management
Search the wiki for ACPI and sensors as well. APM is supposed to be deprecated, but you'll see it out there, sometimes you have to use it. I managed to replace it completely with ACPI. Lots of things re power management really, so have a read. |
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Q-collective Advocate
Joined: 22 Mar 2004 Posts: 2071
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Posted: Sun Nov 25, 2012 6:01 pm Post subject: |
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gabrielg wrote: | Maybe start here: http://wiki.gentoo.org/wiki/Power_management
Search the wiki for ACPI and sensors as well. APM is supposed to be deprecated, but you'll see it out there, sometimes you have to use it. I managed to replace it completely with ACPI. Lots of things re power management really, so have a read. |
The linked document is really just a springboard to other articles. I followed the Radeon and CPU ones and... nothing much happened.
I enabled the CPU frequency scaling and ticks as described here.
I also read this bit about the Radeon powermanagement, although it only proposes to let the graphics card less fast, which is a ridiculous workaround really.
Are there other solutions? |
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mbar Veteran
Joined: 19 Jan 2005 Posts: 1990 Location: Poland
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Posted: Mon Nov 26, 2012 12:18 pm Post subject: |
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Unfortunately not. Use "mid" power profile.
echo "mid" > /sys/class/drm/card0/device/power_profile |
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Q-collective Advocate
Joined: 22 Mar 2004 Posts: 2071
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Posted: Mon Nov 26, 2012 1:34 pm Post subject: |
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mbar wrote: | Unfortunately not. Use "mid" power profile.
echo "mid" > /sys/class/drm/card0/device/power_profile |
So, I either downgrade X and keep at that forever, turn down the capabilities of the card, or I "live with it".
Yay, go go AMD/ATI |
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mbar Veteran
Joined: 19 Jan 2005 Posts: 1990 Location: Poland
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Posted: Thu Nov 29, 2012 1:04 pm Post subject: |
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Do you use your laptop for gaming under Linux?
If not, then radeon driver is better choice than Catalyst. |
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Q-collective Advocate
Joined: 22 Mar 2004 Posts: 2071
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Posted: Sat Dec 01, 2012 8:46 am Post subject: |
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mbar wrote: | Do you use your laptop for gaming under Linux?
If not, then radeon driver is better choice than Catalyst. |
Why is that when the radeon drivers turn my laptop in a jumbojet? |
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Q-collective Advocate
Joined: 22 Mar 2004 Posts: 2071
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Posted: Mon Jan 07, 2013 9:12 am Post subject: |
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Ok, I went for the following "solution" after the noise was slowly but surely driving me nuts:
Code: | echo "low" > /sys/class/drm/card0/device/power_profile |
The temperature at least drops to below 65C, so the fan drops to acceptable noise levels.
However, if I remember correctly, I'll need to do that each time after a reboot. So, where do I set it to become permanent? |
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mbar Veteran
Joined: 19 Jan 2005 Posts: 1990 Location: Poland
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Posted: Tue Jan 08, 2013 2:33 pm Post subject: |
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create executable script "radeon-powersave.start" in /etc/local.d
Code: | #!/bin/sh
echo mid > /sys/class/drm/card0/device/power_profile
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You can alternatively use auto if you can live with screen flickering. |
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Q-collective Advocate
Joined: 22 Mar 2004 Posts: 2071
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Posted: Tue Jan 08, 2013 6:24 pm Post subject: |
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mbar wrote: | create executable script "radeon-powersave.start" in /etc/local.d
Code: | #!/bin/sh
echo mid > /sys/class/drm/card0/device/power_profile
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You can alternatively use auto if you can live with screen flickering. |
Ah yes, thanks |
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