<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#c71">Comment # 71</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 the patch agains 3.13-rc4 which should fix DP. However, on my device I can't boot Linux at all using this patch (undocked!). I patched a mainline 3.13-rc7 on my Arch Linux. Without the patch, it boots fine, but with the patch the kernel boot freezes just before the switch to the Intel FB. Note: Before I even run the patched kernel the first time, I upgraded to latest BIOS (2.17) and also made the Firmware upgrade of the internal DP to VGA converter (see <a href="http://support.lenovo.com/en_US/downloads/detail.page?DocID=DS038203">http://support.lenovo.com/en_US/downloads/detail.page?DocID=DS038203</a>). Especially the second one in combination with the patch might trigger my freeze... Do you did this firmware upgrade?</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>