<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_ASSIGNED " title="ASSIGNED - Screen is frozen on second connection of DP MST dock" href="https://bugs.freedesktop.org/show_bug.cgi?id=107546#c24">Comment # 24</a> on <a class="bz_bug_link bz_status_ASSIGNED " title="ASSIGNED - 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:sergey.menshikov@gmail.com" title="Sergey Menshikov <sergey.menshikov@gmail.com>"> Sergey Menshikov</a> <pre>Apologies for the delay - the issue became very rare. I reproduced it with kernel 4.15.0.36 with options drm.debug=0x1e log_buf_len=4M and dmesg is attached. The key this time was to boot with dock attached, disconnect and reconnect 2 times. I can repro this reliably every time at the moment. To reproduce with drm-tip kernel I need more guidance (unable to connect the dock at the first place): > Connecting the dock with drm-tip kernel results in strange picture on external > displays (blown up section of screen, displayed in a limited square on one of > the external screens). Disconnecting the dock leaves everything blank. Talking > laptop to sleep restores laptop panel.</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>