<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_REOPENED " title="REOPENED - [SNB][IVB][BAT] kms_cursor_legacy@basic-busy-flip-before-cursor-atomic fails in CI" href="https://bugs.freedesktop.org/show_bug.cgi?id=100215#c27">Comment # 27</a> on <a class="bz_bug_link bz_status_REOPENED " title="REOPENED - [SNB][IVB][BAT] kms_cursor_legacy@basic-busy-flip-before-cursor-atomic fails in CI" href="https://bugs.freedesktop.org/show_bug.cgi?id=100215">bug 100215</a> from <a class="email" href="mailto:bugs@mblankhorst.nl" title="Maarten Lankhorst <bugs@mblankhorst.nl>"> Maarten Lankhorst</a> <pre>Created <a href="attachment.cgi?id=131460" name="attach_131460" title="ftrace, weird vblank timings">attachment 131460</a> <a href="attachment.cgi?id=131460&action=edit" title="ftrace, weird vblank timings">[details]</a> ftrace, weird vblank timings In this ftrace the difference in basic-busy-flip-before-cursor-legacy between vblank_start and the get_vblank() at the end is 3, while 1 is expected. The timing of calls to drm_handle_vblank looks wrong. They should be 16.7ms apart, but it doesn't look to be the case here. After the read() it's called 3 times in a row, only 1 ms apart.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are on the CC list for the bug.</li> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>