<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW --- - r600: linux v3.11.0-RC isn't booting with radeon.dpm=1 option in grub" href="https://bugs.freedesktop.org/show_bug.cgi?id=66963#c104">Comment # 104</a> on <a class="bz_bug_link bz_status_NEW " title="NEW --- - r600: linux v3.11.0-RC isn't booting with radeon.dpm=1 option in grub" href="https://bugs.freedesktop.org/show_bug.cgi?id=66963">bug 66963</a> from <a class="email" href="mailto:ken20001@ukr.net" title="Eugene <ken20001@ukr.net>"> Eugene</a> <pre>(In reply to <a href="show_bug.cgi?id=66963#c103">comment #103</a>) > (In reply to <a href="show_bug.cgi?id=66963#c102">comment #102</a>) > > If you could explain me where is kernel command line (when I'm seeing GRUB > > menu push "e" or "c"; and if "c" what to do after I entered radeon.modeset=0 > > in there?), I would try it. I'm just a newbie using kubuntu a few months. > > in the grub menu select the kernel you want to boot and press 'e' then move > to the end of the line that starts: > linux /boot/<blah blah blah> > and append the options to the end of that line. e.g., > linux /boot/<blah blah blah> radeon.modeset=0 1 > The '1' means boot into single user mode rather than X. > > Also, if you haven't already, try disabling aspm: > linux /boot/<blah blah blah> radeon.aspm=0 radeon.dpm=1 Thanks for your explanations. Recently tried it. But...: with > linux /boot/<blah blah blah> radeon.aspm=0 radeon.dpm=1 still blank screen after starting kernel loading with > linux /boot/<blah blah blah> radeon.modeset=0 1 it seems it's booting but I can't see command line - only black screen or text line: "kernel booting... bla-bla-bla" and also no command line. Trying to enter anything gives nothing. But if a enter "reboot" and press Enter it restarts. So it gets the commands but I can't see any display output.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>