<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_REOPENED " title="REOPENED - machine hang" href="https://bugs.freedesktop.org/show_bug.cgi?id=85888#c9">Comment # 9</a> on <a class="bz_bug_link bz_status_REOPENED " title="REOPENED - machine hang" href="https://bugs.freedesktop.org/show_bug.cgi?id=85888">bug 85888</a> from <a class="email" href="mailto:jimmcdevitt60@gmail.com" title="Jim <jimmcdevitt60@gmail.com>"> Jim</a> <pre>(In reply to Malcolm from <a href="show_bug.cgi?id=85888#c8">comment #8</a>) > I also have the same hang on playing videos or graphic operations. > > use_mmio_flip=1 makes no difference > > I have bisected it to > d6bbafa183793537d8dca4d4c2e448805e59448a > drm/i915: Check for a stalled page flip after each vblank > and > 9c787942907face82da505c2c5493998b56cfc5a > drm/i915: Decouple the stuck pageflip on modeset > > Reverting these commits restores trouble free operation. > > The trouble starts in i915_handle_vblank, I am just reverting just the > changes made to this function for now. I tried just in case I missed something but that was to no avail. I think I've got it down to 3 commits, but it is a little more complicated than that. Thanks for the post! It's really annoying.</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>