[Bug 58971] High temperature after resuming from suspend to RAM (system idle).

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=58971


rocko <rockorequin at hotmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |rockorequin at hotmail.com




--- Comment #59 from rocko <rockorequin at hotmail.com>  2013-06-24 18:04:49 ---
@Robert Csordas: thanks for the msleep hint! I've been running into this issue
bigtime with the 3.10-rc series kernel, where roughly four out of every five
suspend/resumes cycles will trigger the high CPU frequency/power usage. As per
your step 2, I applied an msleep(100) just before intel_modeset_init_hw(dev) in
__i915_drm_thaw, and early results look promising: with this new kernel I was
able to perform 9 suspend/resumes in a row without hitting this bug. (The tenth
resume completely failed - the screen backlight didn't even turn on and the
system was completely unresponsive, but I'm going to assume for now that this
is a different bug.)

Note that I didn't revert commit 15239099d7a7a9ecdc1ccb5b187ae4cda5488ff9, I
just inserted the msleep call.

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