<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - screen corruption using SNA and TearFree on Intel GeminiLake" href="https://bugs.freedesktop.org/show_bug.cgi?id=105720#c13">Comment # 13</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - screen corruption using SNA and TearFree on Intel GeminiLake" href="https://bugs.freedesktop.org/show_bug.cgi?id=105720">bug 105720</a> from <a class="email" href="mailto:chris@chris-wilson.co.uk" title="Chris Wilson <chris@chris-wilson.co.uk>"> Chris Wilson</a> <pre>So far: - observed it in TearFree - not observed it in NoTearFree - we've nullified damage tracking for TearFree, forcing it to copy every frame, still reproduces (probably sensible to check through the debug logs for this one to verify the copy to a fresh bo) - used PerCrtcPixmaps + TearFree, reproduced - used PerCrtcPixmaps + NoTearFree + attached patch (c12), reproduced (Please double check the above, and make sure the log file reports using PerCrtcPixmap/TearFree etc.) So everything above that involves a pageflip (the ratelimit patch includes a pageflip to itself for timing purposes) has reproduced the _persistent_ dirt. Left to verify, - PerCrtcPixmaps + NoTearFree (not using attached patch) - Forcing a full CRTC copy with PerCrtcPixmaps + NoTearFree (requires another hack) Other things to test (if it is pageflip related), fullscreen DRI2/DRI3 applications (needs to watch HW or logs to confirm pageflips).</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>