<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - Screen is frozen on second connection of DP MST dock" href="https://bugs.freedesktop.org/show_bug.cgi?id=107546#c9">Comment # 9</a> on <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - Screen is frozen on second connection of DP MST dock" href="https://bugs.freedesktop.org/show_bug.cgi?id=107546">bug 107546</a> from <a class="email" href="mailto:stanislav.lisovskiy@intel.com" title="Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>"> Stanislav Lisovskiy</a> <pre>Sergey Menshikov, so does this issue happen everytime with drm-tip kernel? If you were not able to reproduce 4.15.0.30 would be nice to get dmesg for that one also in order to compare drm messages. Or did you mean that traces themselves affect the behavior? I saw at least a few messages, which seem rather suspicious to me: [ 34.784041] [drm:drm_atomic_helper_wait_for_flip_done] *ERROR* [CRTC:55:pipe B] flip_done timed out [ 45.024099] [drm:drm_atomic_helper_wait_for_dependencies] *ERROR* [CRTC:55:pipe B] flip_done timed out [ 55.264172] [drm:drm_atomic_helper_wait_for_dependencies] *ERROR* [CONNECTOR:107:DP-3] flip_done timed out [ 65.504195] [drm:drm_atomic_helper_wait_for_flip_done] *ERROR* [CRTC:55:pipe B] flip_done timed out [ 75.744168] [drm:drm_atomic_helper_wait_for_dependencies] *ERROR* [CRTC:55:pipe B] flip_done timed out [ 86.496342] [drm:drm_atomic_helper_wait_for_dependencies] *ERROR* [CONNECTOR:107:DP-3] flip_done timed out [ 96.736191] [drm:drm_atomic_helper_wait_for_dependencies] *ERROR* [PLANE:42:plane 1B] flip_done timed out Basically it waited for flipping operation to finish and then failed because of timeout.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> <li>You are on the CC list for the bug.</li> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>