Created attachment 89278 [details] Turbostat output, System is idle in the last two stats Hi, With kernel 3.12 my Sandybridge Laptop (Lenovo T420) gets easily heated up. As soon as I start openarena the CPU reaches ~96°C and stays there. It won't cool down, even when idle. The only way to cool the system down is a reboot or suspend to ram. A bisect between Linux 3.11 and 3.12 identified 351aa5666d02062b52329bcfe4bcf9d1f882fba9 (drm/i915: tune the RC6 threshold for stability) as bad commit. Indeed reverting this commit on 3.12 fixes the problem. I have attached the turbostat output. The CPU is Intel(R) Core(TM) i5-2520M CPU @ 2.50GHz. Graphic is 00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
Thanks for the bisect. I'll queue up the revert if no one has a better idea in the next few days.
I've pushed the revert to -fixes. Might be we need your machine to test a few things. I've cc'ed you on the patch so you're on the discussion.
Sure, thanks for handling this.
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