Xwindow does not start with NVIDIA driver after update kernel.

Issue

• Xwindow does not start with NVIDIA driver after update kernel.
• The file /var/log/Xorg.0.log reports following errors

[    78.981] X Protocol Version 11, Revision 0
[    78.981] Build Operating System: x86-010 2.6.18-274.18.1.el5 
[    78.982] Current Operating System: Linux caboose 2.6.32-220.17.1.el6.x86_64 #1 SMP Thu Apr 26 13:37:13 EDT 2012 x86_64
[    78.983] Kernel command line: ro root=LABEL=/ rd_NO_LUKS  KEYBOARDTYPE=pc KEYTABLE=us LANG=en_US.UTF-8 rd_NO_MD SYSFONT=latarcyrheb-sun16 rd_NO_LVM rd_NO_DM psmouse.proto=imps nmi_watchdog=2 vga=normal amd_iommu=on rdblacklist=nouveau crashkernel=137M@0M 
[    78.984] Build Date: 26 February 2012  08:29:54PM
[    78.984] Build ID: xorg-x11-server 1.10.4-6.el6_2.3 
[    78.984] Current version of pixman: 0.18.4
[    78.984]    Before reporting problems, check https://www.redhat.com/apps/support/
    to make sure that you have the latest version.
[    78.985] Markers: (--) probed, (**) from config file, (==) default setting,
    (++) from command line, (!!) notice, (II) informational,
    (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[    78.986] (==) Log file: "/var/log/Xorg.0.log", Time: Fri Jan 11 09:17:24 2013
[    78.996] (==) Using config file: "/etc/X11/xorg.conf"
[    78.996] (==) ServerLayout "Layout0"
[    78.996] (**) |-->Screen "Screen0" (0)
[    78.996] (**) |   |-->Monitor "Monitor0"
[    78.996] (**) |   |-->Device "Device0"
[    78.996] (**) |-->Input Device "Keyboard0"
[    78.996] (**) |-->Input Device "Mouse0"
[    78.996] (==) Automatically adding devices
[    78.996] (==) Automatically enabling devices
[    79.008] (**) FontPath set to:
    /usr/share/fonts/default/Type1,
    catalogue:/etc/X11/fontpath.d,
    built-ins
[    79.008] (==) ModulePath set to "/usr/lib64/xorg/modules"
[    79.008] (WW) Hotplugging is on, devices using drivers 'kbd', 'mouse' or 'vmmouse' will be disabled.
[    79.008] (WW) Disabling Keyboard0
[    79.008] (WW) Disabling Mouse0
[    79.008] (II) Loader magic: 0x7d5680
[    79.008] (II) Module ABI versions:
[    79.008]    X.Org ANSI C Emulation: 0.4
[    79.008]    X.Org Video Driver: 10.0
[    79.008]    X.Org XInput driver : 12.2
[    79.008]    X.Org Server Extension : 5.0
[    79.010] (--) PCI:*(0:1:4:0) 102b:0532:15d9:ab11 rev 10, Mem @ 0xd9000000/16777216, 0xddffc000/16384, 0xde000000/8388608, BIOS @ 0x????????/131072
[    79.010] (--) PCI: (0:4:0:0) 10de:1096:10de:0910 rev 161, Mem @ 0xdf000000/16777216, 0xd0000000/134217728, 0xce000000/33554432, I/O @ 0x0000d800/128, BIOS @ 0x????????/524288
[    79.010] (--) PCI: (0:65:0:0) 10de:06dd:103c:0780 rev 163, Mem @ 0xca000000/33554432, 0xc0000000/134217728, 0xbc000000/67108864, I/O @ 0x0000e800/128, BIOS @ 0x????????/524288
[    79.010] (II) LoadModule: "extmod"
[    79.011] (II) Loading /usr/lib64/xorg/modules/extensions/libextmod.so
[    79.012] (II) Module extmod: vendor="X.Org Foundation"
[    79.012]    compiled for 1.10.4, module version = 1.0.0
[    79.012]    Module class: X.Org Server Extension
[    79.012]    ABI class: X.Org Server Extension, version 5.0
[    79.012] (II) Loading extension SELinux
[    79.012] (II) Loading extension MIT-SCREEN-SAVER
[    79.012] (II) Loading extension XFree86-VidModeExtension
[    79.012] (II) Loading extension XFree86-DGA
[    79.012] (II) Loading extension DPMS
[    79.012] (II) Loading extension XVideo
[    79.012] (II) Loading extension XVideo-MotionCompensation
[    79.012] (II) Loading extension X-Resource
[    79.012] (II) LoadModule: "dbe"
[    79.013] (II) Loading /usr/lib64/xorg/modules/extensions/libdbe.so
[    79.013] (II) Module dbe: vendor="X.Org Foundation"
[    79.013]    compiled for 1.10.4, module version = 1.0.0
[    79.013]    Module class: X.Org Server Extension
[    79.013]    ABI class: X.Org Server Extension, version 5.0
[    79.013] (II) Loading extension DOUBLE-BUFFER
[    79.013] (II) LoadModule: "glx"
[    79.013] (II) Loading /usr/lib64/xorg/modules/extensions/libglx.so
[    79.321] (II) Module glx: vendor="NVIDIA Corporation"
[    79.321]    compiled for 4.0.2, module version = 1.0.0
[    79.321]    Module class: X.Org Server Extension
[    79.321] (II) NVIDIA GLX Module  310.19  Thu Nov  8 01:12:43 PST 2012
[    79.322] (II) Loading extension GLX
[    79.322] (II) LoadModule: "record"
[    79.322] (II) Loading /usr/lib64/xorg/modules/extensions/librecord.so
[    79.322] (II) Module record: vendor="X.Org Foundation"
[    79.322]    compiled for 1.10.4, module version = 1.13.0
[    79.322]    Module class: X.Org Server Extension
[    79.322]    ABI class: X.Org Server Extension, version 5.0
[    79.322] (II) Loading extension RECORD
[    79.322] (II) LoadModule: "dri"
[    79.323] (II) Loading /usr/lib64/xorg/modules/extensions/libdri.so
[    79.323] (II) Module dri: vendor="X.Org Foundation"
[    79.323]    compiled for 1.10.4, module version = 1.0.0
[    79.323]    ABI class: X.Org Server Extension, version 5.0
[    79.323] (II) Loading extension XFree86-DRI
[    79.323] (II) LoadModule: "dri2"
[    79.324] (II) Loading /usr/lib64/xorg/modules/extensions/libdri2.so
[    79.324] (II) Module dri2: vendor="X.Org Foundation"
[    79.324]    compiled for 1.10.4, module version = 1.2.0
[    79.324]    ABI class: X.Org Server Extension, version 5.0
[    79.324] (II) Loading extension DRI2
[    79.324] (II) LoadModule: "nvidia"
[    79.324] (II) Loading /usr/lib64/xorg/modules/drivers/nvidia_drv.so
[    79.325] (II) Module nvidia: vendor="NVIDIA Corporation"
[    79.325]    compiled for 4.0.2, module version = 1.0.0
[    79.325]    Module class: X.Org Video Driver
[    79.326] (II) NVIDIA dlloader X Driver  310.19  Thu Nov  8 00:53:33 PST 2012
[    79.326] (II) NVIDIA Unified Driver for all Supported NVIDIA GPUs
[    79.326] (--) using VT number 7

[    79.330] (EE) No devices detected.
[    79.330] 
Fatal server error:
[    79.330] no screens found
[    79.330] 
Please consult the Red Hat, Inc. support 
     at https://www.redhat.com/apps/support/
 for help. 
[    79.330] Please also check the log file at "/var/log/Xorg.0.log" for additional information.
[    79.330]