Intel GPU hung in my NVIDIA Optimus laptop with Debian Stable KDE

[Vincent Cheng]

On Wed, Jul 17, 2013 at 7:38 PM, Shervin Emami <shervin.emami at gmail.com> wrote:
> Thanks Vincent.
>
> I removed bumblebee related packages & rebooted, then ran this instruction:
>
> # apt-get -t wheezy-backports install bumblebee
>
> It installed bumblebee and recommended that I install "bumblebee-nvidia",
> and it also gave this warning:
>
> insserv: warning: script is corrupt or invalid:
> /etc/init.d/../rc2.d/S22rc.local~
>
> (I attached S22rc.local~ to this email)

No idea about this one, but the "~" appended to the filename suggests
to me that it may just be a backup copy created by whatever your
preferred text editor is. Check to see if there's an identical
initscript (/etc/rc2.d/S22rc.local) and remove S22rc.local~ if that's
the case.

Anyways, this has nothing to do with bumblebee...

> But now when I try to install "bumblebee-nvidia" (either using "apt-get
> install" or from wheezy-backports), it gives this error:
>
> Reading package lists... Done
> Building dependency tree
> Reading state information... Done
> Package bumblebee-nvidia is not available, but is referred to by another
> package.
> This may mean that the package is missing, has been obsoleted, or
> is only available from another source
>
> E: Package 'bumblebee-nvidia' has no installation candidate
>
>
> How do I install "bumblebee-nvidia"?

You must have "contrib" and "non-free" (in addition to "main") enabled
in your sources.list (non-DFSG compliant packages go in non-free, and
Debian doesn't enable these repositories by default), if you want to
install bumblebee-nvidia and the proprietary nvidia driver packages.

> PS: Do you know if it is easy to increase the size of my dmesg output? When
> I experienced that recent hung GPU my dmesg output overflowed, so it would
> be good if I can make it bigger for next time I need it.

Not sure about this, but a quick google search suggests that passing
"log_buf_len=n" to grub, where 2^n = your desired dmesg buffer size,
is what you want (edit /etc/default/grub, append that to
GRUB_CMDLINE_LINUX_DEFAULT, run "update-grub", and reboot for it to
take effect).

Regards,
Vincent

P.S. Please stop top-posting; it's considered bad mailing list
etiquette and it makes it harder to reply in-line to your emails. :)