<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - [IVB/HSW] 23.976Hz & 24Hz modes broken on dual-display with recent (4.0.x) kernels" href="https://bugs.freedesktop.org/show_bug.cgi?id=91434#c25">Comment # 25</a> on <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - [IVB/HSW] 23.976Hz & 24Hz modes broken on dual-display with recent (4.0.x) kernels" href="https://bugs.freedesktop.org/show_bug.cgi?id=91434">bug 91434</a> from <a class="email" href="mailto:martin.x.andersen@gmail.com" title="Martin Andersen <martin.x.andersen@gmail.com>"> Martin Andersen</a> <pre>Jari, Thanks for the resurrection. ;) This longstanding issue does look quite similar to <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - Big monitor has blank display (HDMI or DVI) in any kernel since and including 3.13 (despite earlier fixes)" href="show_bug.cgi?id=90128">https://bugs.freedesktop.org/show_bug.cgi?id=90128</a> - yes. Although that bug is reported as being specific to Haswell, whereas this occurs on both Ivy Bridge and Haswell - and possibly others (Sandy Bridge) Or it could obviously be that the person reporting only has a Haswell system to test on. Anyway; I will try the latest 4.11.0-994-* from drm-tip this weekend, and boot the system with drm.debug=0xe. Hopefully I'll have time to test on both Haswell & Ivy Bridge so we can get to the bottom of this sucker. Looks like xf86-video-intel is still on the 2.99.917 version. (Good, as I don't have to build a package for that as well.) Would be interesting to see whether the output is still *completely blank*, or if it instead produces the vertical banding reported in <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - Big monitor has blank display (HDMI or DVI) in any kernel since and including 3.13 (despite earlier fixes)" href="show_bug.cgi?id=90128">bug 90128</a>. (I'm guessing blank, as the projector only accepts a certain number of validated modes..)</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are on the CC list for the bug.</li> <li>You are the assignee for the bug.</li> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>