<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_ASSIGNED " title="ASSIGNED - i915: regression: after DP connected (via docking station) monitor is turned off, when turned on, it does not work anymore" href="https://bugs.freedesktop.org/show_bug.cgi?id=88124#c31">Comment # 31</a> on <a class="bz_bug_link bz_status_ASSIGNED " title="ASSIGNED - i915: regression: after DP connected (via docking station) monitor is turned off, when turned on, it does not work anymore" href="https://bugs.freedesktop.org/show_bug.cgi?id=88124">bug 88124</a> from <a class="email" href="mailto:manasi.d.navare@intel.com" title="Manasi <manasi.d.navare@intel.com>"> Manasi</a> <pre>It looks to me that in the DP MST case, the userspace driver is not handling the short pulses for MST sideband communication properly. So the connector (now different id) does not get detected as Connected and modeset doesn't happen on this. Now, that we know it only happens in the docking station case and works fine on a single DP connection (DP SST), Could you capture a log with DP connected through the docking station on the latest kernel? Regards Manasi</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are on the CC list for the bug.</li> </ul> </body> </html>