<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - SteamOS boots to black screen" href="https://bugs.freedesktop.org/show_bug.cgi?id=111087#c9">Comment # 9</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - SteamOS boots to black screen" href="https://bugs.freedesktop.org/show_bug.cgi?id=111087">bug 111087</a> from <a class="email" href="mailto:ludovico.denittis@collabora.com" title="Ludovico de Nittis <ludovico.denittis@collabora.com>"> Ludovico de Nittis</a> <pre>(In reply to Michel Dänzer from <a href="show_bug.cgi?id=111087#c8">comment #8</a>) > The Xorg log file indicates that Xorg starts up in 2560x1440, then an X > client switches to 1920x1080 about 0.25s later (~23s after the kernel starts > booting). Do you notice anything on the monitor around that time, e.g. some > kind of flicker? What does the monitor say about the input signal when the > black screen is shown? After trying one more time I realized that the timing reported by the Xorg log was really too high. So I tried to leave the PC in this black screen for a couple of minutes and I saw that the Xorg log entries were all starting at 140s+ Apparently it is not a static black screen but instead an endless loop? And the Xorg log is only about the last boot attempt. With a video it will be easier to show exactly what happens: <a href="https://youtu.be/YipyPIcP0lA">https://youtu.be/YipyPIcP0lA</a> Moreover as you can see if I move the mouse I'm able to see the SteamOS cursor for a fraction of a second before the monitor turns completely black again. > Does amdgpu.dc=0 on the kernel command line make any difference? No difference. I'll upload the Xorg log and the dmesg of it anyway, just in case it could be of any help.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>