On Fri, 10 Aug 2012 14:28:35 +0000 (UTC) Patrick O'Byrne <pobyrne2 at 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
