On Tue, 13 Dec 2011 22:12:12 +0100 Johannes Bauer <dfnsonfsdu...@gmx.de> wrote: > And it's not even doing *anything*, the CPUs are all at almost 0% > (therefore I don't think there's much heat coming from there). I'm not > doing heavy graphics (not even light graphics, not even moving the mouse!). > > How can I measure the graphics card load? Would it improve anything if I > compiled a kernel myself and switched to 3.1? Is there anything at all I > can do?
In the console, as root, can you: $ 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 then try logging in and doing stuff. If that fixes your fan issue, it means the GPU frequency is to blame. I think Eugeni is working on a nice API to let users control perf vs power a bit better than our current default of "try to run as fast as possible under any load, even a tiny one". -- Jesse Barnes, Intel Open Source Technology Center
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