CentOS 6.5 Video Issues
 

Howdy all. I have spent days now trying to find some help with my newly installed Centos 6.5 and nvidia drivers. I have the machine currently booted to init3. I have followed many of the great guides here like this http://www.linuxquestions.org/questi...le-4175456123/

I have nouveau disabled, lspci|grep vga shows the nvidia but if I do an init5 , my monitor goes into “upsupported mode” and I never see anything again and I am forced to hit the reset button on my box. What logs can I look at to see what’s failing? Or maybe some hints as to what I might have missed. Before I messed with this, I was in the default 1024x786.

Bass

i take it you have not read the cent wiki or the Redhat RHEL 6 docs

centos6 NOW uses the RHEL6 docs on the redhat site


the Nouveau driver is / WAS already installed

now there is a kmod-nvidia.rpm in the ( i believe epel repo)
see the wiki on installing thirdparty repos

BUT
if you are trying to use the NVIDIA 331.run driver
you have to MANUALLY do a bunch of things
like REBUILD THE BOOT IMAGE after you uninstall the nouveau driver

switching drivers is NOT a "point and click" thing
unless it is the repo way using the kmod-nvidia or better yet the akmod-nvidia

PS.
if you replace the nouveau driver with the nvidia.run or kmod-nvidia the plymouth boot screen WILL BE DISABLED !!!
it will fall back to the 3 tone two tone blue and white bar on the bottom of the screen
and you might have to add a vga line to the boot line in the grub.conf

As a matter of fact I have spent /wasted many hours trying both methods resulting in a CLI host that won’t display any form of X. I made the default boot to init3 so I could mess with things. If I don’t, the host will boot, then my monitor blacks out and flashes unsupported mode and a reset switch is required. Just before its tried to load X, I see a warning flash by but it’s so fast I can’t capture it and its lost. Where would gnome send warning for init level 5 messages?

you might have to reinstall , depending on just how mangaled things are but
here is the SL6 guide
http://scientificlinuxforum.org/index.php?showtopic=15
just use the centos reops
see the wiki
http://wiki.centos.org/AdditionalResources/Repositories
and install the elrepo repo

BUT !!!!!
if you are trying to use the .run
you MUST !!!!!
100% MUST !!!!!!
rebuild the boot image after you uninstall the nouveau driver and BEFORE!!!!!!!!!!! you try to install the nvidia.run
( and ALL of that must be done in a text only boot )
see the script i posted here
http://scientificlinuxforum.org/inde...showtopic=2258

the .run driver will NOT install if the nouveau is STILL in the boot image

Also you have to have installed already
gcc and the kernel-devel rpms
using the kmod-nvidia is a LOT easier