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