[LAU] options for hard real time kernel for raring 13.04

[Ralf Mardorf]

On Tue, 2013-09-17 at 09:42 +0100, Marco Donnarumma wrote:
> This time apparently it worked for my low-latency kernel, but not for
> the rt kernel (a 3.2.6 custom one I compiled). What's curious is that
> when logging in the rt-kernel:
> 
> 
> - cinnamon crashes and goes in fall back mode without a way of
> recovering it

What does ~/.xsession-errors say?

> - the nvidia module seems not to be loaded. I guess it's not because I
> don't see the flash screen NVidia at booting

Don't guess, take a look at /var/log/Xorg.0.log. When doing this, first
grep EE, IOW run

grep EE /var/log/Xorg.0.log

> - so I launch the nvidia settings, and I'm welcomed with a message
> saying I'm not using the driver

Seems to be the answer ;).

> - so I launch the hardware driver utility, and I'm welcomed with
> another message saying the driver is installed

Perhaps not the module for the kernel you use.

> Shall I have run the installer when running the rt-kernel? and if so,
> why is that, are modules kernel-dependent?

Modules have to fit to the kernel. You should run the NVIDIA *run thingy
manually.

I've got no time to search for you an English howto, sorry, on the quick
I only found a German howto:
http://wiki.ubuntuusers.de/Grafikkarten/Nvidia/Manuelle_Treiberinstallation

You perhaps need to stop by another way, than using /etc/init.d/...,
this depends to the distro you're using.