Suddenly I'm unable to boot my machine (a desktop running an Intel i5 750 and Nvidia GTX 470).
The boot process ends with a prompt for my user name and password. After I supply those, a command line appears. I then attempt to "startx" but unsuccessfully. I hope someone can please help!
Here is the output of Xorg.0.log:
[ 56.280]
X.Org X Server 1.10.2
Release Date: 2011-05-28
[ 56.281] X Protocol Version 11, Revision 0
[ 56.281] Build Operating System: Linux_2.6.38.8-pclos1.pae.bfs PCLinuxOS
[ 56.282] Current Operating System: Linux localhost.localdomain 2.6.33.6-pclos1.a64 #1 SMP Tue Jul 6 16:29:56 CDT 2010 i686
[ 56.283] Kernel command line: BOOT_IMAGE=linux root=UUID=d8491401-829c-4900-91a3-d0392ab113d3 nokmsboot resume=UUID=5ecebe41-b103-4ccb-bfba-f32d8f79bdf8 splash=silent vga=788
[ 56.285] Build Date: 16 June 2011 11:39:51AM
[ 56.285]
[ 56.285] Current version of pixman: 0.22.0
[ 56.286] Before reporting problems, check http://pclinuxos.com
to make sure that you have the latest version.
[ 56.287] Markers: (--) probed, (**) from config file, (==) default setting,
(++) from command line, (!!) notice, (II) informational,
(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[ 56.289] (==) Log file: "/var/log/Xorg.0.log", Time: Fri Jun 24 18:29:47 2011
[ 56.289] (==) Using config file: "/etc/X11/xorg.conf"
[ 56.290] (==) Using config directory: "/etc/X11/xorg.conf.d"
[ 56.291] (==) ServerLayout "layout1"
[ 56.291] (**) |-->Screen "screen1" (0)
[ 56.291] (**) | |-->Monitor "monitor1"
[ 56.291] (**) | |-->Device "device1"
[ 56.291] (**) |-->Input Device "Mouse0"
[ 56.291] (**) |-->Input Device "Keyboard0"
[ 56.291] (**) Option "DontZap" "False"
[ 56.291] (**) Option "AllowMouseOpenFail"
[ 56.291] (==) Automatically adding devices
[ 56.291] (==) Automatically enabling devices
[ 56.291] (==) FontPath set to:
catalogue:/etc/X11/fontpath.d
[ 56.291] (==) ModulePath set to "/usr/lib/xorg/extra-modules,/usr/lib/xorg/modules"
[ 56.291] (WW) Hotplugging is on, devices using drivers 'kbd', 'mouse' or 'vmmouse' will be disabled.
[ 56.291] (WW) Disabling Mouse0
[ 56.291] (WW) Disabling Keyboard0
[ 56.291] (II) Loader magic: 0x822bf40
[ 56.291] (II) Module ABI versions:
[ 56.291] X.Org ANSI C Emulation: 0.4
[ 56.291] X.Org Video Driver: 10.0
[ 56.291] X.Org XInput driver : 12.2
[ 56.291] X.Org Server Extension : 5.0
[ 56.292] (--) PCI:*(0:1:0:0) 10de:06cd:3842:1470 rev 163, Mem @ 0xf8000000/33554432, 0xd8000000/134217728, 0xd4000000/67108864, I/O @ 0x0000ac00/128, BIOS @ 0x????????/524288
[ 56.292] (II) Open ACPI successful (/var/run/acpid.socket)
[ 56.292] (II) "extmod" will be loaded. This was enabled by default and also specified in the config file.
[ 56.292] (II) "dbe" will be loaded. This was enabled by default and also specified in the config file.
[ 56.292] (II) "glx" will be loaded. This was enabled by default and also specified in the config file.
[ 56.292] (II) "record" will be loaded by default.
[ 56.292] (II) "dri" will be loaded by default.
[ 56.292] (II) "dri2" will be loaded by default.
[ 56.292] (II) LoadModule: "dbe"
[ 56.292] (II) Loading /usr/lib/xorg/modules/extensions/libdbe.so
[ 56.292] (II) Module dbe: vendor="X.Org Foundation"
[ 56.292] compiled for 1.10.2, module version = 1.0.0
[ 56.292] Module class: X.Org Server Extension
[ 56.292] ABI class: X.Org Server Extension, version 5.0
[ 56.292] (II) Loading extension DOUBLE-BUFFER
[ 56.292] (II) LoadModule: "v4l"
[ 56.293] (II) Loading /usr/lib/xorg/modules/drivers/v4l_drv.so
[ 56.293] (II) Module v4l: vendor="X.Org Foundation"
[ 56.293] compiled for 1.10.2, module version = 0.1.1
[ 56.293] ABI class: X.Org Video Driver, version 10.0
[ 56.293] (II) LoadModule: "extmod"
[ 56.293] (II) Loading /usr/lib/xorg/modules/extensions/libextmod.so
[ 56.293] (II) Module extmod: vendor="X.Org Foundation"
[ 56.293] compiled for 1.10.2, module version = 1.0.0
[ 56.293] Module class: X.Org Server Extension
[ 56.293] ABI class: X.Org Server Extension, version 5.0
[ 56.293] (II) Loading extension MIT-SCREEN-SAVER
[ 56.293] (II) Loading extension XFree86-VidModeExtension
[ 56.293] (II) Loading extension XFree86-DGA
[ 56.293] (II) Loading extension DPMS
[ 56.293] (II) Loading extension XVideo
[ 56.293] (II) Loading extension XVideo-MotionCompensation
[ 56.293] (II) Loading extension X-Resource
[ 56.293] (II) LoadModule: "glx"
[ 56.293] (II) Loading /usr/lib/xorg/extra-modules/libglx.so
[ 56.304] (II) Module glx: vendor="NVIDIA Corporation"
[ 56.304] compiled for 4.0.2, module version = 1.0.0
[ 56.304] Module class: X.Org Server Extension
[ 56.304] (II) NVIDIA GLX Module 275.09.07 Wed Jun 8 16:01:21 PDT 2011
[ 56.304] (II) Loading extension GLX
[ 56.304] (II) LoadModule: "record"
[ 56.305] (II) Loading /usr/lib/xorg/modules/extensions/librecord.so
[ 56.305] (II) Module record: vendor="X.Org Foundation"
[ 56.305] compiled for 1.10.2, module version = 1.13.0
[ 56.305] Module class: X.Org Server Extension
[ 56.305] ABI class: X.Org Server Extension, version 5.0
[ 56.305] (II) Loading extension RECORD
[ 56.305] (II) LoadModule: "dri"
[ 56.305] (II) Loading /usr/lib/xorg/modules/extensions/libdri.so
[ 56.306] (II) Module dri: vendor="X.Org Foundation"
[ 56.306] compiled for 1.10.2, module version = 1.0.0
[ 56.306] ABI class: X.Org Server Extension, version 5.0
[ 56.306] (II) Loading extension XFree86-DRI
[ 56.306] (II) LoadModule: "dri2"
[ 56.306] (II) Loading /usr/lib/xorg/modules/extensions/libdri2.so
[ 56.306] (II) Module dri2: vendor="X.Org Foundation"
[ 56.306] compiled for 1.10.2, module version = 1.2.0
[ 56.306] ABI class: X.Org Server Extension, version 5.0
[ 56.306] (II) Loading extension DRI2
[ 56.306] (II) LoadModule: "nvidia"
[ 56.306] (II) Loading /usr/lib/xorg/extra-modules/nvidia_drv.so
[ 56.306] (II) Module nvidia: vendor="NVIDIA Corporation"
[ 56.306] compiled for 4.0.2, module version = 1.0.0
[ 56.306] Module class: X.Org Video Driver
[ 56.306] (II) v4l driver for Video4Linux
[ 56.306] (II) NVIDIA dlloader X Driver 275.09.07 Wed Jun 8 15:43:48 PDT 2011
[ 56.307] (II) NVIDIA Unified Driver for all Supported NVIDIA GPUs
[ 56.307] (--) using VT number 8
[ 56.338] (WW) Falling back to old probe method for v4l
[ 56.338] (II) Loading sub module "fb"
[ 56.338] (II) LoadModule: "fb"
[ 56.339] (II) Loading /usr/lib/xorg/modules/libfb.so
[ 56.339] (II) Module fb: vendor="X.Org Foundation"
[ 56.339] compiled for 1.10.2, module version = 1.0.0
[ 56.339] ABI class: X.Org ANSI C Emulation, version 0.4
[ 56.339] (II) Loading sub module "wfb"
[ 56.339] (II) LoadModule: "wfb"
[ 56.340] (II) Loading /usr/lib/xorg/modules/libwfb.so
[ 56.340] (II) Module wfb: vendor="X.Org Foundation"
[ 56.340] compiled for 1.10.2, module version = 1.0.0
[ 56.340] ABI class: X.Org ANSI C Emulation, version 0.4
[ 56.340] (II) Loading sub module "ramdac"
[ 56.340] (II) LoadModule: "ramdac"
[ 56.340] (II) Module "ramdac" already built-in
[ 56.340] (II) Loading /usr/lib/xorg/extra-modules/nvidia_drv.so
[ 56.340] (II) Loading /usr/lib/xorg/modules/libwfb.so
[ 56.340] (II) Loading /usr/lib/xorg/modules/libfb.so
[ 56.340] (**) NVIDIA(0): Depth 24, (--) framebuffer bpp 32
[ 56.340] (==) NVIDIA(0): RGB weight 888
[ 56.340] (==) NVIDIA(0): Default visual is TrueColor
[ 56.340] (==) NVIDIA(0): Using gamma correction (1.0, 1.0, 1.0)
[ 56.340] (**) NVIDIA(0): Option "AddARGBGLXVisuals"
[ 56.340] (**) NVIDIA(0): Option "DynamicTwinView" "false"
[ 56.451] (EE) NVIDIA(0): Failed to initialize the NVIDIA GPU at PCI:1:0:0. Please
[ 56.451] (EE) NVIDIA(0): check your system's kernel log for additional error
[ 56.451] (EE) NVIDIA(0): messages and refer to Chapter 8: Common Problems in the
[ 56.451] (EE) NVIDIA(0): README for additional information.
[ 56.451] (EE) NVIDIA(0): Failed to initialize the NVIDIA graphics device!
[ 56.451] (II) UnloadModule: "nvidia"
[ 56.451] (II) Unloading nvidia
[ 56.451] (II) UnloadModule: "wfb"
[ 56.451] (II) Unloading wfb
[ 56.451] (II) UnloadModule: "fb"
[ 56.451] (II) Unloading fb
[ 56.451] (EE) Screen(s) found, but none have a usable configuration.
[ 56.451]
Fatal server error:
[ 56.451] no screens found
[ 56.451]
Please consult the The X.Org Foundation support
at http://pclinuxos.com
for help.
[ 56.451] Please also check the log file at "/var/log/Xorg.0.log" for additional information.
[ 56.451]