Bug#689748: More info, with nouveau.modeset=0 display stays dark permanently, also kernel 3.7

[Sven Joachim <svenjoac@gmx.de>]

On 2013-02-25 23:38 +0100, The Eclectic One wrote:

> So, replacing
> GRUB_CMDLINE_LINUX_DEFAULT="quiet"
>
> with 
>
> GRUB_CMDLINE_LINUX_DEFAULT="quiet nouveau.modeset=0"
>
> and running update-grub leaves the main screen dark.  Without that
> option, at some point the nvidia hardware is set up so that boot
> messages start appearing and everything works (until the lock-ups
> happen that is)

Booting with nouveau.modeset=0 disables the driver, probably not what
you want unless you intend to switch to the Nvidia blob.

> Next, I installed the kernel from experimental (linux-image-3.7-trunk-486).
> No problem with the installation but the lock up situation is not solved.
> The behavior has changed, though.  Now a quick push of the on/off switch
> just dumps me into a text console, under the message:
>
> "failed to idle channel 0xcccc0000".

This seems to have been reported upstream recently, see
https://bugs.freedesktop.org/show_bug.cgi?id=61287.

Have you tried booting with nouveau.noaccel=1 yet?  That seems to be the
only way to obtain stability on N4VE.

Cheers,
       Sven