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Old 06-30-2008, 05:32 AM   #1
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Registered: Jun 2008
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Red face Black screen and terminal interface Centos 5 - nvidia quadro fx 4500

We are using CentOS 5 on Mac pro with nvidia quadro fx 4500 graphic card. We are using this machine for protein modelling. Last week, the system got updated. After restart, it shows only black screen with terminal interface. I dont know how to bring the graphical interface. Please help me to fix the graphical interface. It will be very helpful for my research work.
Thanks in advance!
Old 07-01-2008, 11:06 AM   #2
Registered: Feb 2005
Distribution: CentOS, Fedora, OS X, SLES, Ubuntu
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Hmm... if the system was updated to CentOS 5.2 last week (that's around the time it first became available) you more than likely received a kernel update, among many other fixes.

My guess is that, if you manually installed the nvidia binary drivers for X, you probably will need to re-run the nvidia install from a command line in order to have it update kernel modules etc.

All my CentOS boxes are servers, so I'm not completely sure on this, but that's my guess as to what probably happened...

It sounds like you can get to a working terminal... if so, try modifying the following section of /etc/X11/xorg.conf :

Section "Device"
Identifier "Videocard0"
Driver "nvidia"
Change the driver entry from "nvidia" to "nv", save, and exit. Then attempt to restart X by typing "startx" at the command line.

(this changes X to use the freely-available/non-accelerated "nv" driver, which is lower in performance, and has other limitations, but definitely helps in ruling out what could be the cause of the issue here)

If your full GUI re-appears then it's simply a matter of updating the nvidia binary driver installation (usually just by running the installer again--but X has to be stopped in order to do this).

Hope this helps.
Old 07-01-2008, 11:35 AM   #3
Registered: Feb 2007
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Upon updating your kernel has probably been updated. nVidia driver setup must be run for each kernel.
Old 07-02-2008, 06:07 AM   #4
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Registered: Jun 2008
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Hi Strick1226,
Yes, I can only access terminal like '[root@jay~]#'.
I dont have any command skills. It will be very helpful for me, if you give me step-by-step commands to fix this problem.

Thank you very much for your help.

Last edited by jeyaganesh; 07-02-2008 at 06:07 AM. Reason: spelling mistake


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