Bug#670480: "waiting for dev to be fully populated" when discrete video card set in BIOS on ThinkPad W520

[Stephen Byrne <stephen@sbyrne.net>]

On 05/08/2012 08:25 PM, Jonathan Nieder wrote:
> reassign 670480 src:linux-2.6 3.2.15-1
> tags 670480 + moreinfo
> quit
>
> Hi Stephen,
>
> Stephen Byrne wrote:
>
> > ThinkPad W520 with NVidia Quadro 1000M usually hangs on boot at
> > "waiting for dev to be fully populated" when the discrete card is selected
> > in the BIOS.  When either the onboard card or NVidia Optimus is selected, the
> > system boots normally and the onboard card works fine. I do not know if it is a
> > udev problem or a kernel problem or what, I just guessed.
>
> Please attach output from
>
>    reportbug --template linux-image-$(uname -r)
>
> Logs from a failed boot would be very useful if you can get them
> (using a serial console[1], netconsole[2], or by attaching a
> photograph, for example).
>
> [1] http://www.kernel.org/doc/Documentation/serial-console.txt
> [2] http://www.kernel.org/doc/Documentation/networking/netconsole.txt

While trying to get netconsole working I accidentally deleted 
/etc/modules, which fixed the problem. I had not manually edited it 
previously and I have no idea what was in there before.

-Stephen Byrne