<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_REOPENED " title="REOPENED - [i915 Skylake] HDMI output does not work with some adapters" href="https://bugs.freedesktop.org/show_bug.cgi?id=92685#c29">Comment # 29</a> on <a class="bz_bug_link bz_status_REOPENED " title="REOPENED - [i915 Skylake] HDMI output does not work with some adapters" href="https://bugs.freedesktop.org/show_bug.cgi?id=92685">bug 92685</a> from <a class="email" href="mailto:wb8nbs@prodigy.net" title="Jim Harvey <wb8nbs@prodigy.net>"> Jim Harvey</a> <pre>(In reply to Jim Harvey from <a href="show_bug.cgi?id=92685#c28">comment #28</a>) > I have this exact problem. Old computer used two vga monitors, I just built > a new computer and trying to use the old monitors. Mobo is Asus TUF Z270 > Mark 2 with an I5 7600K, OS is Ubuntu 16.04 with kernel 4.10.0-40. > > Gofanco Active DVI-D to VGA Adapter Converter works well but XF TIMES HDMI > to VGA > will fail on a cold boot. Both screens show the Ubuntu purple for a few > seconds then the HDMI shuts down. Reboot does not start the HDMI side but > usually a power cycle will. > > DMESG in the failed HDMI condition has this error: > > [ 1.668084] [drm] Initialized i915 1.6.0 20161121 for 0000:00:02.0 on > minor 0 > [ 1.675364] random: fast init done > [ 1.809723] i915 0000:00:02.0: HDMI-A-1: EDID is invalid: > [ 1.809724] [00] BAD 18 ab 1a 3a 5b 3f d0 19 a4 71 db 8e 55 d8 ce a5 > [ 1.809724] [00] BAD f6 73 dd d5 de 24 38 3a 09 05 89 72 f5 67 95 b3 > [ 1.809724] [00] BAD 3e ab 0b f4 b1 ae 10 62 63 eb f8 7b 86 1f 4c e5 > [ 1.809725] [00] BAD 22 80 86 1c 81 00 1e 7b 12 19 62 d2 5f 79 09 9c > [ 1.809725] [00] BAD bc 2d c1 0d 12 32 6b 03 0c 33 21 81 ff 5d a4 50 > [ 1.809725] [00] BAD 0e 8b 35 56 ad a8 75 8d a8 e7 31 7e ab 37 35 16 > [ 1.809725] [00] BAD b1 0c 10 92 98 74 70 e0 d9 c7 d7 cc 44 e3 bb af > [ 1.809726] [00] BAD 38 aa c2 6b 0e d4 e5 a8 0c a0 6d 5f 17 92 01 02 > > Otherwise DMESG looks the same when it works or not. I built an xorg.conf > adding IgnoreEDID but no help, I saw this in Xorg.0.log: > [ 12.156] (WW) intel(0): Option "IgnoreEDID" is not used > and no other error messages. The last thing I see on the screen before the HDMI adapter shuts down is this: Nov 28 10:20:23 junkbox-2 kernel: [ 1.436007] fb: switching to inteldrmfb from EFI VGA</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>