<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - Dell XPS15 (HD530 & GeForce 950) external screen via dock/HDMI no text display & gdm freeze" href="https://bugs.freedesktop.org/show_bug.cgi?id=111502#c4">Comment # 4</a> on <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - Dell XPS15 (HD530 & GeForce 950) external screen via dock/HDMI no text display & gdm freeze" href="https://bugs.freedesktop.org/show_bug.cgi?id=111502">bug 111502</a> from <a class="email" href="mailto:hajo@hajo.net" title="HaJo Schatz <hajo@hajo.net>"> HaJo Schatz</a> <pre>Created <a href="attachment.cgi?id=145217" name="attach_145217" title="drm-tip logs">attachment 145217</a> <a href="attachment.cgi?id=145217&action=edit" title="drm-tip logs">[details]</a> drm-tip logs Apologies, took a while to compile & run that. Result is the same failure, 2nd display is dead. Attached are dmesg logs both with and without drm.debug enabled of drm-tip cloned 2019-08-28, 18:30 UTC+8 Meanwhile I also noticed that the "defective" kernels/modules >5.0 configure something in the dock(?) which subsequently makes the "working" kernels very unstable. Seems like some register settings in the dock which do not get initialized by the working kernels <= 5.0, so those then crash, don't serve dock-connected HIDs, etc. Need to power-down the dock for an extended time (30mins+) to get back to a stable hardware after one of the 5.1+ kernels ran.</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 assignee for the bug.</li> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>