* Fan constantly running with Intel Graphics card
@ 2012-08-10 14:28 Patrick O'Byrne
2012-08-11 19:17 ` Ben Widawsky
0 siblings, 1 reply; 2+ messages in thread
From: Patrick O'Byrne @ 2012-08-10 14:28 UTC (permalink / raw)
To: intel-gfx
Hi,
I am having an issue with a new Dell E5520 laptop (Intel(R) Core(TM) i5-2520 CPU
@ 2.5GHz) running Linux Mint 13 (Kernel: Linux 3.2.0-23-generic (i686)). I am
using the graphics driver that ships with the kernel:
00:02.0 VGA compatible controller [0300]: Intel Corporation 2nd Generation Core
Processor Family Integrated Graphics Controller [8086:0126] (rev 09)
My problem is that the fan is constantly on even though I am not doing any
intensive processing. The laptop runs very nicely (quietly) when I boot into
Windows 7.
There was a recent post which suggests running the following commands:
$ cat /sys/kernel/debug/dri/0/i915_cur_delayinfo | grep Lowest
then echo that value into the max freq file, e.g.:
$ echo 400 > /sys/kernel/debug/dri/0/i915_max_freq
I tried this (and restarted the machine) but still no joy, it seems that in my
case GPU frequency is not to blame. Any advice would be greatly appreciated.
Regards
Patrick
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: Fan constantly running with Intel Graphics card
2012-08-10 14:28 Fan constantly running with Intel Graphics card Patrick O'Byrne
@ 2012-08-11 19:17 ` Ben Widawsky
0 siblings, 0 replies; 2+ messages in thread
From: Ben Widawsky @ 2012-08-11 19:17 UTC (permalink / raw)
To: Patrick O'Byrne; +Cc: intel-gfx
On Fri, 10 Aug 2012 14:28:35 +0000 (UTC)
Patrick O'Byrne <pobyrne2@gmail.com> wrote:
> Hi,
>
> I am having an issue with a new Dell E5520 laptop (Intel(R) Core(TM)
> i5-2520 CPU @ 2.5GHz) running Linux Mint 13 (Kernel: Linux
> 3.2.0-23-generic (i686)). I am using the graphics driver that ships
> with the kernel:
>
> 00:02.0 VGA compatible controller [0300]: Intel Corporation 2nd
> Generation Core Processor Family Integrated Graphics Controller
> [8086:0126] (rev 09)
>
> My problem is that the fan is constantly on even though I am not
> doing any intensive processing. The laptop runs very nicely
> (quietly) when I boot into Windows 7.
>
> There was a recent post which suggests running the following commands:
>
> $ cat /sys/kernel/debug/dri/0/i915_cur_delayinfo | grep Lowest
> then echo that value into the max freq file, e.g.:
> $ echo 400 > /sys/kernel/debug/dri/0/i915_max_freq
>
>
> I tried this (and restarted the machine) but still no joy, it seems
> that in my case GPU frequency is not to blame. Any advice would be
> greatly appreciated.
>
> Regards
> Patrick
>
>
>
Can you please try sysfs_rc6_residency test in intel-gpu-tools? This
might be the same issue I am currently fighting.
--
Ben Widawsky, Intel Open Source Technology Center
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