I am also experiencing this issue. I recently installed a GeForce GTX 460 on my system, which is running Squeeze, and am using the proprietary NVidia drivers installed from the Squeeze repositories. Periodically gdm3 will fail to launch and will show a blinking "_" cursor in the upper left. I can generally recover without rebooting by switching to a different console with ctrl-alt-F1, logging in, and running "/etc/init.d/gdm3 restart", though sometimes it takes 2 tries to successfully launch gdm3. I have attached my xorg.conf, Xorg0.log, and gdm3's 0.log and 0-greeter.log. (the slave log was empty)
xorg.conf
Description: Binary data
X.Org X Server 1.7.7 Release Date: 2010-05-04 X Protocol Version 11, Revision 0 Build Operating System: Linux 2.6.32.26-dsa-amd64 x86_64 Debian Current Operating System: Linux main 2.6.32-5-amd64 #1 SMP Fri Dec 10 15:35:08 UTC 2010 x86_64 Kernel command line: BOOT_IMAGE=/boot/vmlinuz-2.6.32-5-amd64 root=UUID=43acb8fe-ae48-4a5a-8f5f-959b3d09d4db ro vga=786 quiet quiet Build Date: 02 December 2010 01:10:32AM xorg-server 2:1.7.7-10 (Julien Cristau <jcris...@debian.org>) Current version of pixman: 0.16.4 Before reporting problems, check http://wiki.x.org to make sure that you have the latest version. Markers: (--) probed, (**) from config file, (==) default setting, (++) from command line, (!!) notice, (II) informational, (WW) warning, (EE) error, (NI) not implemented, (??) unknown. (==) Log file: "/var/log/Xorg.0.log", Time: Fri Dec 31 11:44:37 2010 (==) Using config file: "/etc/X11/xorg.conf" (==) Using system config directory "/usr/share/X11/xorg.conf.d" (==) ServerLayout "Layout0" (**) |-->Screen "Screen0" (0) (**) | |-->Monitor "Monitor0" (**) | |-->Device "Device0" (**) |-->Input Device "Keyboard0" (**) |-->Input Device "Mouse0" (==) Automatically adding devices (==) Automatically enabling devices (WW) The directory "/usr/share/fonts/X11/cyrillic" does not exist. Entry deleted from font path. (==) FontPath set to: /usr/share/fonts/X11/misc, /usr/share/fonts/X11/100dpi/:unscaled, /usr/share/fonts/X11/75dpi/:unscaled, /usr/share/fonts/X11/Type1, /usr/share/fonts/X11/100dpi, /usr/share/fonts/X11/75dpi, /var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType, built-ins (==) ModulePath set to "/usr/lib/xorg/modules" (WW) AllowEmptyInput is on, devices using drivers 'kbd', 'mouse' or 'vmmouse' will be disabled. (WW) Disabling Keyboard0 (WW) Disabling Mouse0 (II) Loader magic: 0x7c7500 (II) Module ABI versions: X.Org ANSI C Emulation: 0.4 X.Org Video Driver: 6.0 X.Org XInput driver : 7.0 X.Org Server Extension : 2.0 (++) using VT number 7
(--) PCI:*(0:2:0:0) 10de:0e22:1462:2322 nVidia Corporation GF104 [GeForce GTX 460] rev 161, Mem @ 0xf8000000/33554432, 0xd8000000/134217728, 0xd4000000/67108864, I/O @ 0x0000cc00/128, BIOS @ 0x????????/524288 (II) Open ACPI successful (/var/run/acpid.socket) (II) LoadModule: "extmod" (II) Loading /usr/lib/xorg/modules/extensions/libextmod.so (II) Module extmod: vendor="X.Org Foundation" compiled for 1.7.7, module version = 1.0.0 Module class: X.Org Server Extension ABI class: X.Org Server Extension, version 2.0 (II) Loading extension SELinux (II) Loading extension MIT-SCREEN-SAVER (II) Loading extension XFree86-VidModeExtension (II) Loading extension XFree86-DGA (II) Loading extension DPMS (II) Loading extension XVideo (II) Loading extension XVideo-MotionCompensation (II) Loading extension X-Resource (II) LoadModule: "dbe" (II) Loading /usr/lib/xorg/modules/extensions/libdbe.so (II) Module dbe: vendor="X.Org Foundation" compiled for 1.7.7, module version = 1.0.0 Module class: X.Org Server Extension ABI class: X.Org Server Extension, version 2.0 (II) Loading extension DOUBLE-BUFFER (II) LoadModule: "glx" (II) Loading /usr/lib/xorg/modules/extensions/libglx.so (II) Module glx: vendor="NVIDIA Corporation" compiled for 4.0.2, module version = 1.0.0 Module class: X.Org Server Extension (II) NVIDIA GLX Module 195.36.31 Thu Jun 3 08:59:25 PDT 2010 (II) Loading extension GLX (II) LoadModule: "record" (II) Loading /usr/lib/xorg/modules/extensions/librecord.so (II) Module record: vendor="X.Org Foundation" compiled for 1.7.7, module version = 1.13.0 Module class: X.Org Server Extension ABI class: X.Org Server Extension, version 2.0 (II) Loading extension RECORD (II) LoadModule: "dri" (II) Loading /usr/lib/xorg/modules/extensions/libdri.so (II) Module dri: vendor="X.Org Foundation" compiled for 1.7.7, module version = 1.0.0 ABI class: X.Org Server Extension, version 2.0 (II) Loading extension XFree86-DRI (II) LoadModule: "dri2" (II) Loading /usr/lib/xorg/modules/extensions/libdri2.so (II) Module dri2: vendor="X.Org Foundation" compiled for 1.7.7, module version = 1.1.0 ABI class: X.Org Server Extension, version 2.0 (II) Loading extension DRI2 (II) LoadModule: "nvidia" (II) Loading /usr/lib/xorg/modules/drivers/nvidia_drv.so (II) Module nvidia: vendor="NVIDIA Corporation" compiled for 4.0.2, module version = 1.0.0 Module class: X.Org Video Driver (II) NVIDIA dlloader X Driver 195.36.31 Thu Jun 3 08:27:29 PDT 2010 (II) NVIDIA Unified Driver for all Supported NVIDIA GPUs (II) Primary Device is: PCI 0...@00:00:0 (II) Loading sub module "fb" (II) LoadModule: "fb" (II) Loading /usr/lib/xorg/modules/libfb.so (II) Module fb: vendor="X.Org Foundation" compiled for 1.7.7, module version = 1.0.0 ABI class: X.Org ANSI C Emulation, version 0.4 (II) Loading sub module "wfb" (II) LoadModule: "wfb" (II) Loading /usr/lib/xorg/modules/libwfb.so (II) Module wfb: vendor="X.Org Foundation" compiled for 1.7.7, module version = 1.0.0 ABI class: X.Org ANSI C Emulation, version 0.4 (II) Loading sub module "ramdac" (II) LoadModule: "ramdac" (II) Module "ramdac" already built-in (**) NVIDIA(0): Depth 24, (--) framebuffer bpp 32 (==) NVIDIA(0): RGB weight 888 (==) NVIDIA(0): Default visual is TrueColor (==) NVIDIA(0): Using gamma correction (1.0, 1.0, 1.0) (**) Dec 31 11:44:38 NVIDIA(0): Enabling RENDER acceleration (II) Dec 31 11:44:38 NVIDIA(0): Support for GLX with the Damage and Composite X extensions is (II) Dec 31 11:44:38 NVIDIA(0): enabled. (EE) Dec 31 11:44:54 NVIDIA(0): Failed to initialize the NVIDIA graphics device PCI:2:0:0. (EE) Dec 31 11:44:54 NVIDIA(0): Please check your system's kernel log for additional error (EE) Dec 31 11:44:54 NVIDIA(0): messages and refer to Chapter 8: Common Problems in the (EE) Dec 31 11:44:54 NVIDIA(0): README for additional information. (EE) Dec 31 11:44:54 NVIDIA(0): Failed to initialize the NVIDIA graphics device! (II) UnloadModule: "nvidia" (II) UnloadModule: "wfb" (II) UnloadModule: "fb" (EE) Screen(s) found, but none have a usable configuration. Fatal server error: no screens found Please consult the The X.Org Foundation support at http://wiki.x.org for help. Please also check the log file at "/var/log/Xorg.0.log" for additional information.
X.Org X Server 1.7.7 Release Date: 2010-05-04 X Protocol Version 11, Revision 0 Build Operating System: Linux 2.6.32.26-dsa-amd64 x86_64 Debian Current Operating System: Linux main 2.6.32-5-amd64 #1 SMP Fri Dec 10 15:35:08 UTC 2010 x86_64 Kernel command line: BOOT_IMAGE=/boot/vmlinuz-2.6.32-5-amd64 root=UUID=43acb8fe-ae48-4a5a-8f5f-959b3d09d4db ro vga=786 quiet quiet Build Date: 02 December 2010 01:10:32AM xorg-server 2:1.7.7-10 (Julien Cristau <jcris...@debian.org>) Current version of pixman: 0.16.4 Before reporting problems, check http://wiki.x.org to make sure that you have the latest version. Markers: (--) probed, (**) from config file, (==) default setting, (++) from command line, (!!) notice, (II) informational, (WW) warning, (EE) error, (NI) not implemented, (??) unknown. (==) Log file: "/var/log/Xorg.0.log", Time: Fri Dec 31 11:44:37 2010 (==) Using config file: "/etc/X11/xorg.conf" (==) Using system config directory "/usr/share/X11/xorg.conf.d" (==) ServerLayout "Layout0" (**) |-->Screen "Screen0" (0) (**) | |-->Monitor "Monitor0" (**) | |-->Device "Device0" (**) |-->Input Device "Keyboard0" (**) |-->Input Device "Mouse0" (==) Automatically adding devices (==) Automatically enabling devices (WW) The directory "/usr/share/fonts/X11/cyrillic" does not exist. Entry deleted from font path. (==) FontPath set to: /usr/share/fonts/X11/misc, /usr/share/fonts/X11/100dpi/:unscaled, /usr/share/fonts/X11/75dpi/:unscaled, /usr/share/fonts/X11/Type1, /usr/share/fonts/X11/100dpi, /usr/share/fonts/X11/75dpi, /var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType, built-ins (==) ModulePath set to "/usr/lib/xorg/modules" (WW) AllowEmptyInput is on, devices using drivers 'kbd', 'mouse' or 'vmmouse' will be disabled. (WW) Disabling Keyboard0 (WW) Disabling Mouse0 (++) using VT number 7 (--) PCI:*(0:2:0:0) 10de:0e22:1462:2322 nVidia Corporation GF104 [GeForce GTX 460] rev 161, Mem @ 0xf8000000/33554432, 0xd8000000/134217728, 0xd4000000/67108864, I/O @ 0x0000cc00/128, BIOS @ 0x????????/524288 (II) Loading /usr/lib/xorg/modules/extensions/libextmod.so (II) Module extmod: vendor="X.Org Foundation" compiled for 1.7.7, module version = 1.0.0 (II) Loading /usr/lib/xorg/modules/extensions/libdbe.so (II) Module dbe: vendor="X.Org Foundation" compiled for 1.7.7, module version = 1.0.0 (II) Loading /usr/lib/xorg/modules/extensions/libglx.so (II) Module glx: vendor="NVIDIA Corporation" compiled for 4.0.2, module version = 1.0.0 (II) NVIDIA GLX Module 195.36.31 Thu Jun 3 08:59:25 PDT 2010 (II) Loading /usr/lib/xorg/modules/extensions/librecord.so (II) Module record: vendor="X.Org Foundation" compiled for 1.7.7, module version = 1.13.0 (II) Loading /usr/lib/xorg/modules/extensions/libdri.so (II) Module dri: vendor="X.Org Foundation" compiled for 1.7.7, module version = 1.0.0 (II) Loading /usr/lib/xorg/modules/extensions/libdri2.so (II) Module dri2: vendor="X.Org Foundation" compiled for 1.7.7, module version = 1.1.0 (II) Loading /usr/lib/xorg/modules/drivers/nvidia_drv.so (II) Module nvidia: vendor="NVIDIA Corporation" compiled for 4.0.2, module version = 1.0.0 (II) NVIDIA dlloader X Driver 195.36.31 Thu Jun 3 08:27:29 PDT 2010 (II) NVIDIA Unified Driver for all Supported NVIDIA GPUs (II) Loading /usr/lib/xorg/modules/libfb.so (II) Module fb: vendor="X.Org Foundation" compiled for 1.7.7, module version = 1.0.0 (II) Loading /usr/lib/xorg/modules/libwfb.so (II) Module wfb: vendor="X.Org Foundation" compiled for 1.7.7, module version = 1.0.0 (**) NVIDIA(0): Depth 24, (--) framebuffer bpp 32 (==) NVIDIA(0): RGB weight 888 (==) NVIDIA(0): Default visual is TrueColor (==) NVIDIA(0): Using gamma correction (1.0, 1.0, 1.0) (**) Dec 31 11:44:38 NVIDIA(0): Enabling RENDER acceleration (II) Dec 31 11:44:38 NVIDIA(0): Support for GLX with the Damage and Composite X extensions is (II) Dec 31 11:44:38 NVIDIA(0): enabled. NVIDIA: could not open the device file /dev/nvidia0 (Input/output error). (EE) Dec 31 11:44:54 NVIDIA(0): Failed to initialize the NVIDIA graphics device PCI:2:0:0. (EE) Dec 31 11:44:54 NVIDIA(0): Please check your system's kernel log for additional error (EE) Dec 31 11:44:54 NVIDIA(0): messages and refer to Chapter 8: Common Problems in the (EE) Dec 31 11:44:54 NVIDIA(0): README for additional information. (EE) Dec 31 11:44:54 NVIDIA(0): Failed to initialize the NVIDIA graphics device! (EE) Screen(s) found, but none have a usable configuration. Fatal server error: no screens found Please consult the The X.Org Foundation support at http://wiki.x.org for help. Please also check the log file at "/var/log/Xorg.0.log" for additional information.
** (<unknown>:2410): DEBUG: Client registered with session manager: /org/gnome/SessionManager/Client1 Window manager warning: Failed to read saved session file /var/lib/gdm3/.config/metacity/sessions/10a222e2337282344e129376869620465100000024040001.ms: Failed to open file '/var/lib/gdm3/.config/metacity/sessions/10a222e2337282344e129376869620465100000024040001.ms': No such file or directory (polkit-gnome-authentication-agent-1:2427): GLib-GObject-WARNING **: cannot register existing type `_PolkitError' (polkit-gnome-authentication-agent-1:2427): GLib-CRITICAL **: g_once_init_leave: assertion `initialization_value != 0' failed ** (process:2429): DEBUG: Greeter session pid=2429 display=:0.0 xauthority=/var/run/gdm3/auth-for-Debian-gdm-5hidYB/database gdm-simple-greeter[2429]: Gtk-WARNING: /scratch/build-area/gtk+2.0-2.20.1/gtk/gtkwidget.c:5628: widget not within a GtkWindow Window manager warning: Buggy client sent a _NET_ACTIVE_WINDOW message with a timestamp of 0 for 0x1a0002b (Login Wind) Window manager warning: meta_window_activate called by a pager with a 0 timestamp; the pager needs to be fixed. Window manager warning: Buggy client sent a _NET_ACTIVE_WINDOW message with a timestamp of 0 for 0x1a0002b (Login Wind) Window manager warning: meta_window_activate called by a pager with a 0 timestamp; the pager needs to be fixed. gdm-simple-greeter[2429]: Gtk-WARNING: gtk_widget_size_allocate(): attempt to allocate widget with width 560 and height -1 gdm-simple-greeter[2429]: Gtk-WARNING: gtk_widget_size_allocate(): attempt to allocate widget with width 560 and height -1 Window manager warning: Buggy client sent a _NET_ACTIVE_WINDOW message with a timestamp of 0 for 0x1a0002b (Login Wind) Window manager warning: meta_window_activate called by a pager with a 0 timestamp; the pager needs to be fixed. (gnome-power-manager:2428): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed Window manager warning: CurrentTime used to choose focus window; focus window may not be correct. Window manager warning: Got a request to focus the no_focus_window with a timestamp of 0. This shouldn't happen! gdm-simple-greeter[2429]: WARNING: Failed to send buffer ** (gnome-power-manager:2428): WARNING **: Failed to send buffer (gnome-power-manager:2428): atk-bridge-WARNING **: AT_SPI_REGISTRY was not started at session startup. (gnome-power-manager:2428): atk-bridge-WARNING **: IOR not set. (gnome-power-manager:2428): atk-bridge-WARNING **: AT_SPI_REGISTRY was not started at session startup. (gnome-power-manager:2428): atk-bridge-WARNING **: IOR not set. (gnome-settings-daemon:2411): atk-bridge-WARNING **: AT_SPI_REGISTRY was not started at session startup. (gnome-settings-daemon:2411): atk-bridge-WARNING **: IOR not set. (gnome-settings-daemon:2411): atk-bridge-WARNING **: AT_SPI_REGISTRY was not started at session startup. (gnome-settings-daemon:2411): atk-bridge-WARNING **: IOR not set. (gnome-settings-daemon:2411): atk-bridge-WARNING **: AT_SPI_REGISTRY was not started at session startup. (gnome-settings-daemon:2411): atk-bridge-WARNING **: IOR not set. (gnome-settings-daemon:2411): atk-bridge-WARNING **: AT_SPI_REGISTRY was not started at session startup. (gnome-settings-daemon:2411): atk-bridge-WARNING **: IOR not set. (gnome-settings-daemon:2411): atk-bridge-WARNING **: AT_SPI_REGISTRY was not started at session startup. (gnome-settings-daemon:2411): atk-bridge-WARNING **: IOR not set. (gnome-settings-daemon:2411): atk-bridge-WARNING **: AT_SPI_REGISTRY was not started at session startup. (gnome-settings-daemon:2411): atk-bridge-WARNING **: IOR not set. (gnome-settings-daemon:2411): atk-bridge-WARNING **: AT_SPI_REGISTRY was not started at session startup. (gnome-settings-daemon:2411): atk-bridge-WARNING **: IOR not set. (polkit-gnome-authentication-agent-1:2427): polkit-gnome-1-WARNING **: Error enumerating temporary authorizations: Remote Exception invoking org.freedesktop.PolicyKit1.Authority.EnumerateTemporaryAuthorizations() on /org/freedesktop/PolicyKit1/Authority at name org.freedesktop.PolicyKit1: org.freedesktop.PolicyKit1.Error.Failed: Cannot determine session the caller is in (polkit-gnome-authentication-agent-1:2427): polkit-gnome-1-WARNING **: Error enumerating temporary authorizations: Remote Exception invoking org.freedesktop.PolicyKit1.Authority.EnumerateTemporaryAuthorizations() on /org/freedesktop/PolicyKit1/Authority at name org.freedesktop.PolicyKit1: org.freedesktop.PolicyKit1.Error.Failed: Cannot determine session the caller is in (gnome-settings-daemon:2411): atk-bridge-WARNING **: AT_SPI_REGISTRY was not started at session startup. (gnome-settings-daemon:2411): atk-bridge-WARNING **: IOR not set. (gnome-settings-daemon:2411): atk-bridge-WARNING **: AT_SPI_REGISTRY was not started at session startup. (gnome-settings-daemon:2411): atk-bridge-WARNING **: IOR not set. (polkit-gnome-authentication-agent-1:2427): polkit-gnome-1-WARNING **: Error enumerating temporary authorizations: Remote Exception invoking org.freedesktop.PolicyKit1.Authority.EnumerateTemporaryAuthorizations() on /org/freedesktop/PolicyKit1/Authority at name org.freedesktop.PolicyKit1: org.freedesktop.PolicyKit1.Error.Failed: Cannot determine session the caller is in polkit-gnome-authentication-agent-1: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.0. polkit-gnome-authentication-agent-1: Fatal IO error 104 (Connection reset by peer) on X server :0.0.
