[Bug 66963] r600: linux v3.11.0-RC isn't booting with radeon.dpm=1 option in grub

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Wed Sep 4 13:27:37 PDT 2013


--- Comment #104 from Eugene <ken20001 at ukr.net> ---
(In reply to comment #103)
> (In reply to comment #102)
> > 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...:

> linux   /boot/<blah blah blah> radeon.aspm=0 radeon.dpm=1
still blank screen after starting kernel loading

> 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.

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