<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_REOPENED " title="REOPENED - RetroArch refuses to go back into windowed mode after fullscreen with Intel i915 graphics" href="https://bugs.freedesktop.org/show_bug.cgi?id=93844#c161">Comment # 161</a> on <a class="bz_bug_link bz_status_REOPENED " title="REOPENED - RetroArch refuses to go back into windowed mode after fullscreen with Intel i915 graphics" href="https://bugs.freedesktop.org/show_bug.cgi?id=93844">bug 93844</a> from <a class="email" href="mailto:diego.viola@gmail.com" title="Diego Viola <diego.viola@gmail.com>"> Diego Viola</a> <pre>[diego@myhost ~]$ cd linux [diego@myhost linux]$ git bisect bad 7ac7d19f808697abe6658c64c96868f728273f9c is the first bad commit commit 7ac7d19f808697abe6658c64c96868f728273f9c Author: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>> Date: Sun Apr 17 20:42:46 2016 +0100 drm/i915: Avoid stalling on pending flips for legacy cursor updates The legacy cursor ioctl expects to be asynchronous with respect to other screen updates, in particular page flips. As X updates the cursor from a signal context, if the cursor blocks then it will stall both the input and output chains causing bad stuttering and horrible UX. Reported-and-tested-by: Rafael Ristovski <<a href="mailto:rafael.ristovski@gmail.com">rafael.ristovski@gmail.com</a>> Bugzilla: <a class="bz_bug_link bz_status_RESOLVED bz_closed" title="RESOLVED FIXED - [HSW xf86-video-intel] 2D acceleration slows to a crawl from 4.4.6 -> 4.5" href="show_bug.cgi?id=94980">https://bugs.freedesktop.org/show_bug.cgi?id=94980</a> Fixes: 5008e874edd34 ("drm/i915: Make wait_for_flips interruptible.") Suggested-by: Maarten Lankhorst <<a href="mailto:maarten.lankhorst@linux.intel.com">maarten.lankhorst@linux.intel.com</a>> Signed-off-by: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>> Cc: Maarten Lankhorst <<a href="mailto:maarten.lankhorst@linux.intel.com">maarten.lankhorst@linux.intel.com</a>> Cc: Ville Syrjälä <<a href="mailto:ville.syrjala@linux.intel.com">ville.syrjala@linux.intel.com</a>> Cc: Daniel Vetter <<a href="mailto:daniel.vetter@ffwll.ch">daniel.vetter@ffwll.ch</a>> Cc: Jani Nikula <<a href="mailto:jani.nikula@intel.com">jani.nikula@intel.com</a>> Cc: <a href="mailto:stable@vger.kernel.org">stable@vger.kernel.org</a> Link: <a href="http://patchwork.freedesktop.org/patch/msgid/1460922166-20292-1-git-send-email-chris@chris-wilson.co.uk">http://patchwork.freedesktop.org/patch/msgid/1460922166-20292-1-git-send-email-chris@chris-wilson.co.uk</a> Acked-by: Daniel Vetter <<a href="mailto:daniel.vetter@ffwll.ch">daniel.vetter@ffwll.ch</a>> Reviewed-by: Maarten Lankhorst <<a href="mailto:maarten.lankhorst@linux.intel.com">maarten.lankhorst@linux.intel.com</a>> (cherry picked from commit acf4e84d6167317ff21be5c03e1ea76ea5783701) Signed-off-by: Jani Nikula <<a href="mailto:jani.nikula@intel.com">jani.nikula@intel.com</a>> :040000 040000 ffd5371b8faffb065a2cd8c5624127ce2a03284c a19fe78a340ba89e0c206e96b65d5c426eb0e150 M drivers [diego@myhost linux]$</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> </ul> </body> </html>