<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_REOPENED " title="REOPENED --- - Random blank screen after login with Haswell 4400" href="https://bugs.freedesktop.org/show_bug.cgi?id=70145#c9">Comment # 9</a> on <a class="bz_bug_link bz_status_REOPENED " title="REOPENED --- - Random blank screen after login with Haswell 4400" href="https://bugs.freedesktop.org/show_bug.cgi?id=70145">bug 70145</a> from <a class="email" href="mailto:maks@manichord.com" title="Maksim Lin <maks@manichord.com>"> Maksim Lin</a> <pre>Sorry I should have also said that I am usually running with the patch from <a class="bz_bug_link bz_status_RESOLVED bz_closed" title="RESOLVED FIXED - [hsw DP] Ubuntu 12.04 unable to use external monitor through edock" href="show_bug.cgi?id=73694">https://bugs.freedesktop.org/show_bug.cgi?id=73694</a> applied, though I have seen this happen when running with kernels without the patch applied. Also sometimes this occurs, even a reboot does not resolve the problem - even the firmware ("bios") splash screens dont show and I have to pull out the battery and reboot - this has only happened when I've been out and not has an external screen to connect to, as when this same thing happens when docked in a Dell eDock or connected to HDMI via laptops own HDMI port, I see the firmware boot screens show up on the external monitor. Also since I'm building my own kernel already I'm happy to try out any patches or alternative git branches that people could point me to test.</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> <li>You are the assignee for the bug.</li> </ul> </body> </html>