<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_REOPENED " title="REOPENED - Skylake GPU hang ecode 9:0:0x86dffffd" href="https://bugs.freedesktop.org/show_bug.cgi?id=94021#c16">Comment # 16</a> on <a class="bz_bug_link bz_status_REOPENED " title="REOPENED - Skylake GPU hang ecode 9:0:0x86dffffd" href="https://bugs.freedesktop.org/show_bug.cgi?id=94021">bug 94021</a> from <a class="email" href="mailto:zhangchi866@gmail.com" title="Zhang Chi <zhangchi866@gmail.com>"> Zhang Chi</a> <pre>Similar situation here: [ 5087.853310] [drm] GPU HANG: ecode 9:0:0x86dffffd, in Xorg [862], reason: Hang on rcs0, action: reset [ 5087.853316] i915 0000:00:02.0: Resetting rcs0 after gpu hang [ 5095.844690] i915 0000:00:02.0: Resetting rcs0 after gpu hang [ 5107.844711] i915 0000:00:02.0: Resetting rcs0 after gpu hang [ 5117.832724] i915 0000:00:02.0: Resetting rcs0 after gpu hang [ 5125.828738] i915 0000:00:02.0: Resetting rcs0 after gpu hang Then X restarts (without log). CPU: i3 6320 $ lspci 00:02.0 VGA compatible controller: Intel Corporation HD Graphics 530 (rev 06) Very reproduceable when editing texts in LibreOffice Impress 6.0.1.1 (other similar versions should also trigger). Other applications do not seem to trigger the problem. I believe the problem started a few months ago and happens with kernel 4.9. But I cannot remember clearly. Adding "i915.enable_rc6=0" alone to boot parameters does NOT fix the problem. Adding "intel_iommu=igfx_off" does seem to fix it.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>