<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - [SKL] random system hang with RC6 enabled" href="https://bugs.freedesktop.org/show_bug.cgi?id=95063#c2">Comment # 2</a> on <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - [SKL] random system hang with RC6 enabled" href="https://bugs.freedesktop.org/show_bug.cgi?id=95063">bug 95063</a> from <a class="email" href="mailto:gary.c.wang@intel.com" title="Gary Wang <gary.c.wang@intel.com>"> Gary Wang</a> <pre>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.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are on the CC list for the bug.</li> <li>You are the assignee for the bug.</li> </ul> </body> </html>