Bug#802246: Can't modprobe -r nvidia, rmmod works

[Luca Boccassi]

On 18 October 2015 at 20:43, Andreas Beckmann <anbe at debian.org> wrote:
> On 2015-10-18 20:34, Elijah Rum wrote:
>> Since the last update of nvidia-driver in debian sid repos it's unable to
>> unload the nvidia kernel module via modprobe -r. Though bumblebee runs
>> exactly that command when the application run on nvidia card is finished.
>> Meanwhile rmmod works, and it is possible to unload nvidia by hand and
>> restart the bumblebee service to get nvidia card turned off.
>
> Looks like we need a separate profile for the glx alternative to support
> bumblebee with the new nvidia driver configuration scheme.
>
> Is the following correct for nvidia+bumblebee:
>
> * the nvidia kernel module is available
> * but it is *not* autoloaded
> * nouveau is blacklisted
> * Xorg is *not* configured to use nvidia_drv.so

All correct.

> With the mesa-diverted profile you use, the nvidia module is *not*
> available any more (i.e. known to modprobe as 'nvidia' - therefore
> modprobe -r does not work) and nouveau is not blacklisted (unless
> bumblebee comes with its own blacklist).

Bumblebee does its own blacklisting, which includes nouveau [1].

Kind regards,
Luca Boccassi

[1] http://anonscm.debian.org/cgit/pkg-nvidia/bumblebee.git/tree/debian/bumblebee.conf