[Bug 95063] [SKL] random system hang with RC6 enabled

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=95063

--- Comment #2 from Gary Wang <gary.c.wang at intel.com> ---
Hi Timo, 
I correct mesa version descripted in #1. Original version of Mesa used in
Dell's switchable GPU sku should be 10.5.9 but not 10.1.3. 

I also verified Mesa 10.5.9 in other Dell SKL sku (parkcity-14) with Ubunut
14.04 (with only Gen GPU) with the same environment setup (kernel:
drm-intel-nightly 4/26) in #1, it passed glmark2 test more than 48 hours. The
corresponding info,

vendor_id       : GenuineIntel
cpu family      : 6
model           : 78
model name      : Intel(R) Core(TM) i5-6300U CPU @ 2.40GHz
stepping        : 3
microcode       : 0x49

3.0 Mesa 10.5.9

Distributor ID: Ubuntu
Description:    Ubuntu 14.04.2 LTS
Release:        14.04
Codename:       trusty

It seems to be related to power in that switchable GPU sku but not mesa.

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