Just wanted to start this thread after not finding anything to really help me with this issue, and I tried alot.
The problem was that I could not install the proprietary nvidia drivers after a dist-upgrade a few days ago that did get me plymouth but in the process loaded the nouveau drivers on boot.
So everytime I tried to install the proprietary ones (excuse me for actually gaming on linux - so havin 3d and wine running is mandatory) I got the following error:
So after much trial and error the only thing that got me to working nvidia drivers (and not working plymouth wich is the smaller one of the problems) was to add nouveau to the bottom of my /etc/modprobe.d/blacklist.conf reboot and install the nvidia drivers through the installer.
ERROR: Unable to load the kernel module 'nvidia.ko'. This happens most
frequently when this kernel module was built against the wrong or
improperly configured kernel sources, with a version of gcc that differs
from the one used to build the target kernel, or if a driver such as
rivafb/nvidiafb is present and prevents the NVIDIA kernel module from
obtaining ownership of the NVIDIA graphics device(s), or NVIDIA GPU
installed in this system is not supported by this NVIDIA Linux graphics
Now my dearest eve-online is working again. *cheer* but the prettyness of plymouth is gone.
I hope this answer might help some chap who runs into the same issue, or - even better - gets noticed by one of you who knows a better way to do it.
As far as I understand it's the vga16fb module that is insufficient to run a proper graphical plymouth. Not blacklisting the nouveau module makes it load this one instead, giving you pretty graphics on boot and 'working' X with the nouveau driver in xorg.conf (or empty xorg.conf) but no 3d acceleration.
last dist-upgrade 22:30 CET
$ uname -r
$ lspci |grep nV
01:00.0 VGA compatible controller: nVidia Corporation G96 [GeForce 9600M GS] (rev a1)
$ lsmod |grep nvi
nvidia 8877607 40
agpgart 31820 2 nvidia,intel_agp