<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - [SKL] random system hang with RC6 enabled" href="https://bugs.freedesktop.org/show_bug.cgi?id=95063#c1">Comment # 1</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - [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>This is Dell's switchable GPU sku (Intel Gen/Nvidia) in SKL platform with Ubuntu 14.04.4/kernel 3.19+SKL_gfx-driver It appears following test result for i915 Gfx driver suspend/resume (by echo 'mem' into power state) test, 1. Non-X, kernel with i915 module loaded (more than 5000+ test cycles without error) 2. xinit simple environment (more than 23000+ test cycles). Its mesa is mesa-10.1.3. When I run glmark2 based on the second environment, it got system halt with blank screen within 1 hour. After upgrading to mesa-11.3.0 (5/4/2016), it's working correctly more than 5 hours until now. Could you help to verify this issue by the latest mesa code and share the test result with us? Thanks!</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are the assignee for the bug.</li> <li>You are on the CC list for the bug.</li> </ul> </body> </html>