<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW --- - [HSW bisected] Desktop-EDP can not work" href="https://bugs.freedesktop.org/show_bug.cgi?id=61542#c4">Comment # 4</a> on <a class="bz_bug_link bz_status_NEW " title="NEW --- - [HSW bisected] Desktop-EDP can not work" href="https://bugs.freedesktop.org/show_bug.cgi?id=61542">bug 61542</a> from <a class="email" href="mailto:bingx.a.yan@intel.com" title="yanbing <bingx.a.yan@intel.com>"> yanbing</a> <pre>(In reply to <a href="show_bug.cgi?id=61542#c3">comment #3</a>) > 1 - EDP works for me here on my mobile machine. > EDP also works for us on mobile machine,this bug just exist on hsw-desktop. > 2 - The dmesg complains about EDID being zero. I have seen this message > sometimes (on HDMI), and just rebooting seemed to have "fixed" the problem > for me. Do you see this "EDID is zero" message all the time? > Yes,I see "EDID is zero" message all the time not only on bad commit but also on some good commit,you can see it on the "EDP-oldrevert-good.dmesg" > 3 - Dmesg also says that "pipe A is connected to port D and pipe B is > connected to port C". Are you using eDP only? > For comparison test,I connect EDP and HDMI at the same time.But now I just only connect EDP and get some new info at 4-2 & 4-3.The first bad commit was still that one. > 4 - Can you please revert the code to a state where it worked, boot it and > send me the dmesg? Just only using EDP,I got some dmesg again. 4-1: By using first bad commit,just only using EDP and attched on "EDP-only-firstbad.dmesg" 4-2: When bisect the first bad commit and revert it at once (not git pull to the latest),it works well just only using EDP. I attached on "EDP-oldrevert-good.dmesg". 4-3: Git pull to the latest,and revert the code.Using only EDP is black,but EDP+HDMI works well. I attached on "EDP-newrevert.dmesg"</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>