Messages in this thread | | | Date | Wed, 10 Oct 2012 18:33:49 +0200 | From | Toralf Förster <> | Subject | RC6 for an Intel GU doesn't always work |
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Sometimes - after a reboot or after wakeup from s2disk I'm observed at my ThinkPad T420 (i5-2540M CPU) w/ integrated intel graphic (i915 module) since 3.6-rc(5?), that the temperature is above 80°C (usually it is around/lower than 50 °C). Powertop-2.1 shows, that the all 4 CPU cores are mostly idle, but the GPU is running at 100%. It looks for me that the power saving mode RC6 isn't active.
After 1-2 s2ram's however the issue went away.
I'm observing the issue both under my Gentoo Linux and under a RH system (kernel 3.6.1 each).
It is hard to bisect b/c not reliable.
-- MfG/Sincerely Toralf Förster pgp finger print: 7B1A 07F4 EC82 0F90 D4C2 8936 872A E508 7DB6 9DA3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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