<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO --- - [hsw DP] Ubuntu 12.04 unable to use external monitor through edock" href="https://bugs.freedesktop.org/show_bug.cgi?id=73694#c4">Comment # 4</a> on <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO --- - [hsw DP] Ubuntu 12.04 unable to use external monitor through edock" href="https://bugs.freedesktop.org/show_bug.cgi?id=73694">bug 73694</a> from <a class="email" href="mailto:marcusbergner@gmail.com" title="Marcus Bergner <marcusbergner@gmail.com>"> Marcus Bergner</a> <pre>This patch is gold! I can confirm that the suggested patch solves the problem with the external screen not starting correctly on boot or resume from sleep on a Dell Latitude E7440 + E-Dock. Currently running a drm-intel 3.13.0-rc8 kernel on Fedora 20 with the proposed patch and the external screen now starts as it should. I no longer have a problem where a kworker process eats CPU for about 5 minutes until the screen is detected making the computer more or less unusable during that time, and repeatedly writes out "failed to train dp aborting" in dmesg, so a massive improvement. Only remaining problem is to sort out issues with washed out colors on the external monitor in Gnome (which existed before I applied this patch as well). Thanks for this one.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are on the CC list for the bug.</li> </ul> </body> </html>