<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - 4k hdmi monitor stays black on kaveri [regression]" href="https://bugs.freedesktop.org/show_bug.cgi?id=107072#c10">Comment # 10</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - 4k hdmi monitor stays black on kaveri [regression]" href="https://bugs.freedesktop.org/show_bug.cgi?id=107072">bug 107072</a> from <a class="email" href="mailto:alexdeucher@gmail.com" title="Alex Deucher <alexdeucher@gmail.com>"> Alex Deucher</a> <pre>(In reply to Pontus Gråskæg from <a href="show_bug.cgi?id=107072#c9">comment #9</a>) > Looking at your dmesg output, it looks like you might have hit this > bug/issue: <a class="bz_bug_link bz_status_NEW " title="NEW - [dc] No support for LVDS or VGA connectors (Cannot find any crtc or sizes)" href="show_bug.cgi?id=105880">bug 105880</a> > > "[dc] No support for LVDS or VGA connectors (Cannot find any crtc or sizes)" > > AMD/Harry Wentland/Alex Deucher have commits in the mainline kernel to > disable the DC code by default for Bonaire, Kabini, Kaveri, and Mullins as > certain hardware interfaces are not supported in the DC code. Your cpu (from > dmesg) is an AMD A8-7650K Radeon R7, codename Kaveri. Unless you are using VGA or LVDS connectors this is a different issues. That does not seem to be the case here (HDMI and DVI are supported in the DC code).</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>