<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - DisplayPort over USB-C not working after resume" href="https://bugs.freedesktop.org/show_bug.cgi?id=109059#c2">Comment # 2</a> on <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - DisplayPort over USB-C not working after resume" href="https://bugs.freedesktop.org/show_bug.cgi?id=109059">bug 109059</a> from <a class="email" href="mailto:mkj@gotu.dk" title="Martin Jørgensen <mkj@gotu.dk>"> Martin Jørgensen</a> <pre>(In reply to Jani Saarinen from <a href="show_bug.cgi?id=109059#c1">comment #1</a>) > Hi, > Please try to reproduce the error using drm-tip > (<a href="https://cgit.freedesktop.org/drm-tip">https://cgit.freedesktop.org/drm-tip</a>) and kernel parameters drm.debug=0x1e > log_buf_len=4M, and if the problem persists attach the full dmesg from boot. > > There has been some fixes lately, eg: > <a class="bz_bug_link bz_status_RESOLVED bz_closed" title="RESOLVED FIXED - USB-C dock unplug trigger NULL pointer access" href="show_bug.cgi?id=108616">https://bugs.freedesktop.org/show_bug.cgi?id=108616</a> and some others. > > cc Stan to comment I have tried latest 4.20-rc6 kernel from drm-tip. After fiddling with the config to make my laptop boot at least properly, but without many drivers for my other hardware in the laptop, I seems it's somewhat working well. When booting with the dock plugged in and monitor on, the monitor shows the boot console as expected, and get recognized as DP-4 by xrandr. After suspending, and resuming, the monitor flashes a bit and shows the image again, but now the monitor is identified as DP-2-2 instead.</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>