[PlanetCCRMA] x fails to start with real-time kernel

[Fernando Lopez-Lezcano]

On 05/02/2011 11:35 PM, craig stephenson wrote:
>   Hello all.  I recently installed the real-time kernel  for Fedora 14
> 64-bit (although not the latest one announced today), and I ran into a
> problem that I'm sure is all too familiar to you.  I have the
> closed-source nvidia driver installed, and when I booted with the rt
> kernel I got the error "Failed to load module "nvidia"
> (module-specific error, 0) no drivers available".   I've installed the
> CCRMA akmod-nvidia and kernel-rt-devel packages, but am still unable
> to boot into x.

(do you get an error about the akmod package while you boot? make sure 
you have the kernel-rt-devel - or kernel-rtPAE-devel on i386 if you have 
the PAE kernel - package installed)

This is probably the nouveau kernel driver interfering with the nvidia 
driver (ie: the open source, reverse engineered nouveau driver loads on 
boot and as it is using the nvidia chip and resources makes it 
impossible to later load the nvidia kernel module).

You need to add this to the kernel boot line in /boot/grub/grub.conf:

----
nouveau.modeset=0 rdblacklist=nouveau
----

You may also need this (I do need it in my Fedora 13 laptop with the 
nvidia driver):

----
vmalloc=512M
----

Could you try this and report back?
-- Fernando