<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO --- - sna: (Haswell) X-server freezes when enabling DP at docking station" href="https://bugs.freedesktop.org/show_bug.cgi?id=71267#c79">Comment # 79</a> on <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO --- - sna: (Haswell) X-server freezes when enabling DP at docking station" href="https://bugs.freedesktop.org/show_bug.cgi?id=71267">bug 71267</a> from <a class="email" href="mailto:stefan@agner.ch" title="Stefan Agner <stefan@agner.ch>"> Stefan Agner</a> <pre>I tried today vanilla 3.13 on my T440s. Still the same issue. I then inserted the udelay (at the same position stated in the patch) as well as uncommented locks in ironlake_panel_vdd_work (I had boot hangs with the full patch of Georg Pichler applied). I only have a HDMI device, which is connected to the dock. I booted undocked and docked then. At first, several messages (including the mode information) appeared, however I had no freeze. Then, when I enable the output (using xrandr --output DP2 --auto), the system freezes for several minutes but after a while, I have output on HDMI! My log (dmesg_3.13_docking_hdmi_with_udelay) looks a bit different then others do, especially this every reoccurring intel_dp_set_signal_levels.</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>