Still more Q on nouveau driver & version missmatch

[Gene Heskett]

Greetings;

Back again...

Running  linux-3.16.0, home built.  Using the nouveau driver on an
EVGA GeForce 8400 GS card
Messages log being spammed hundreds of megabytes a week by something 
nouveau version in kernel vs version of x installed related.  X is from
the server version of 10.04.4 LTS with enough x & kde installed to get
a window manager and kmail working.

My audio & video is stuttering something terrible about 98% of the time, 
on a quad core phenom with 8Gb of ram.

Something was said about the frame buffer being incompatible, and I asked 
where could I dl the newer x so I could build it here, and was not answered.

Now this morning I find that I do have a module nvidiafb.ko:

gene at coyote:/etc$ ls -l /lib/modules/3.16.0/kernel/drivers/video/fbdev/nvidia/nvidiafb.ko
-rw-r--r-- 1 root root 48412 2014-12-05 12:36 /lib/modules/3.16.0/kernel/drivers/video/fbdev/nvidia/nvidiafb.ko

But:

gene at coyote:/etc$ sudo modprobe /lib/modules/3.16.0/kernel/drivers/video/fbdev/nvidia/nvidiafb.ko
FATAL: Module /lib/modules/3.16.0/kernel/drivers/video/fbdev/nvidia/nvidiafb.ko not found.

So my question is, why this module can't even be found when I give 
modprobe the full path to it?

Attempting to insmod it, I get an unknown symbol in module error return.

How can I alleviate this audio & video pain?

Thanks & Merry Christmas to all.

Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
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-Ed Howdershelt (Author)
Genes Web page <http://geneslinuxbox.net:6309/gene>
US V Castleman, SCOTUS, Mar 2014 is grounds for Impeaching SCOTUS