<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - EDID confusion with LG 4K TV as monitor running X rather than wayland" href="https://bugs.freedesktop.org/show_bug.cgi?id=110631#c1">Comment # 1</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - EDID confusion with LG 4K TV as monitor running X rather than wayland" href="https://bugs.freedesktop.org/show_bug.cgi?id=110631">bug 110631</a> from <a class="email" href="mailto:imirkin@alum.mit.edu" title="Ilia Mirkin <imirkin@alum.mit.edu>"> Ilia Mirkin</a> <pre>FWIW I have a LG C7P which I tested with a GM206 and GP107. Slightly different than your setup, but comparable. I used this setup for bringup of HDMI 2.0 support, available in kernel 4.20. HDMI 2.0 is required for 4k@60 over HDMI. Looking at those logs, you appear to be using modeset instead of xf86-video-nouveau (note how it says "modeset" instead of "NOUVEAU"). The logs make it look like modeset is trying to use a 3840x2160 594MHz mode. This requires HDMI 2.0 to work (and should have been filtered out, but nonetheless is the modeline presented). I'd recommend (a) using xf86-video-nouveau [RH has made local changes to this driver to not load, but I believe this to be a very bad idea, you can override with an xorg.conf iirc], and (b) updating to a 4.20+ kernel so that you get HDMI 2.0 to work to get access to the higher refresh rates.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>