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My Arch installation is several months old and nVidia has worked without problems since the beginning. However, one of the recent changes (1-2 weeks ago) broke something, that I noticed in a reboot. In journalctl -xf you can see this:
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: X.Org X Server 1.17.2
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: Release Date: 2015-06-16
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: X Protocol Version 11, Revision 0
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: Build Operating System: Linux 4.0.4-2-ARCH x86_64
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: Current Operating System: Linux gauri 4.1.3-1-ARCH #1 SMP PREEMPT Wed Jul 22 20:37:12 CEST 2015 x86_64
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: Kernel command line: BOOT_IMAGE=/root/boot/vmlinuz-linux root=UUID=cfe3048d-dc98-4d86-adf1-dd6d27688f29 rw rootflags=subvol=root nolapic_timer vga=794 verbose
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: Build Date: 17 July 2015 05:38:19PM
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: Current version of pixman: 0.32.6
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: Before reporting problems, check http://wiki.x.org
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: to make sure that you have the latest version.
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: Markers: (--) probed, (**) from config file, (==) default setting,
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (++) from command line, (!!) notice, (II) informational,
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (==) Log file: "/var/log/Xorg.0.log", Time: Mon Aug 3 11:34:46 2015
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (==) Using config file: "/etc/X11/xorg.conf"
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (==) Using config directory: "/etc/X11/xorg.conf.d"
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (==) Using system config directory "/usr/share/X11/xorg.conf.d"
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (==) ServerLayout "Layout0"
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (**) |-->Screen "Screen0" (0)
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (**) | |-->Monitor "Monitor0"
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (**) | |-->Device "Device0"
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (**) |-->Input Device "Keyboard0"
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (**) |-->Input Device "Mouse0"
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (==) Automatically adding devices
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (==) Automatically enabling devices
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (==) Automatically adding GPU devices
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (WW) `fonts.dir' not found (or not valid) in "/usr/share/fonts/100dpi/".
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: Entry deleted from font path.
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (Run 'mkfontdir' on "/usr/share/fonts/100dpi/").
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (WW) `fonts.dir' not found (or not valid) in "/usr/share/fonts/75dpi/".
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: Entry deleted from font path.
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (Run 'mkfontdir' on "/usr/share/fonts/75dpi/").
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (==) FontPath set to:
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: /usr/share/fonts/misc/,
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: /usr/share/fonts/TTF/,
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: /usr/share/fonts/OTF/,
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: /usr/share/fonts/Type1/
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (==) ModulePath set to "/usr/lib/xorg/modules"
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (WW) Hotplugging is on, devices using drivers 'kbd', 'mouse' or 'vmmouse' will be disabled.
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (WW) Disabling Keyboard0
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (WW) Disabling Mouse0
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (II) Loader magic: 0x817d60
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (II) Module ABI versions:
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: X.Org ANSI C Emulation: 0.4
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: X.Org Video Driver: 19.0
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: X.Org XInput driver : 21.1
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: X.Org Server Extension : 9.0
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (II) systemd-logind: took control of session /org/freedesktop/login1/session/c509
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (II) xfree86: Adding drm device (/dev/dri/card0)
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (II) systemd-logind: got fd for /dev/dri/card0 226:0 fd 9 paused 0
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (--) PCI:*(0:1:0:0) 10de:1380:1569:1380 rev 162, Mem @ 0xf6000000/16777216, 0xe0000000/268435456, 0xf0000000/33554432, I/O @ 0x0000e000/128, BIOS @ 0x????????/524288
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (WW) Open ACPI failed (/var/run/acpid.socket) (No such file or directory)
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (II) LoadModule: "glx"
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (II) Loading /usr/lib/xorg/modules/extensions/libglx.so
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (II) Module glx: vendor="NVIDIA Corporation"
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: compiled for 4.0.2, module version = 1.0.0
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: Module class: X.Org Server Extension
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (II) NVIDIA GLX Module 352.30 Tue Jul 21 18:22:32 PDT 2015
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (II) LoadModule: "nvidia"
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (II) Loading /usr/lib/xorg/modules/drivers/nvidia_drv.so
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (II) Module nvidia: vendor="NVIDIA Corporation"
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: compiled for 4.0.2, module version = 1.0.0
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: Module class: X.Org Video Driver
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (II) NVIDIA dlloader X Driver 352.30 Tue Jul 21 18:01:20 PDT 2015
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (II) NVIDIA Unified Driver for all Supported NVIDIA GPUs
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (++) using VT number 1
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (II) Loading sub module "fb"
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (II) LoadModule: "fb"
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (II) Loading /usr/lib/xorg/modules/libfb.so
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (II) Module fb: vendor="X.Org Foundation"
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: compiled for 1.17.2, module version = 1.0.0
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: ABI class: X.Org ANSI C Emulation, version 0.4
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (II) Loading sub module "wfb"
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (II) LoadModule: "wfb"
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (II) Loading /usr/lib/xorg/modules/libwfb.so
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (II) Module wfb: vendor="X.Org Foundation"
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: compiled for 1.17.2, module version = 1.0.0
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: ABI class: X.Org ANSI C Emulation, version 0.4
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (II) Loading sub module "ramdac"
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (II) LoadModule: "ramdac"
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (II) Module "ramdac" already built-in
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (**) NVIDIA(0): Depth 24, (--) framebuffer bpp 32
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (==) NVIDIA(0): RGB weight 888
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (==) NVIDIA(0): Default visual is TrueColor
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (==) NVIDIA(0): Using gamma correction (1.0, 1.0, 1.0)
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (**) NVIDIA(0): Enabling 2D acceleration
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (II) NVIDIA: Allocated GPU:0 (GPU-67aa2a79-211b-34f2-d4a2-a10040484d22) @
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (II) NVIDIA: PCI:0000:01:00.0
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (--) NVIDIA(0): Valid display device(s) on GPU-0 at PCI:1:0:0
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (--) NVIDIA(0): CRT-0
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (--) NVIDIA(0): DFP-0 (boot)
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (--) NVIDIA(0): DFP-1
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (--) NVIDIA(0): DFP-2
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (--) NVIDIA(0): CRT-0: disconnected
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (--) NVIDIA(0): CRT-0: 400.0 MHz maximum pixel clock
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (--) NVIDIA(0):
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (--) NVIDIA(0): DFP-0: disconnected
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (--) NVIDIA(0): DFP-0: Internal TMDS
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (--) NVIDIA(0): DFP-0: 330.0 MHz maximum pixel clock
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (--) NVIDIA(0):
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (--) NVIDIA(0): DFP-1: disconnected
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (--) NVIDIA(0): DFP-1: Internal TMDS
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (--) NVIDIA(0): DFP-1: 165.0 MHz maximum pixel clock
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (--) NVIDIA(0):
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (--) NVIDIA(0): DFP-2: disconnected
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (--) NVIDIA(0): DFP-2: Internal TMDS
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (--) NVIDIA(0): DFP-2: 330.0 MHz maximum pixel clock
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (--) NVIDIA(0):
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (II) NVIDIA(GPU-0): Found DRM driver nvidia-drm (20150116)
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (II) NVIDIA(0): NVIDIA GPU GeForce GTX 750 Ti (GM107-A) at PCI:1:0:0 (GPU-0)
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (--) NVIDIA(0): Memory: 2097152 kBytes
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (--) NVIDIA(0): VideoBIOS: 82.07.32.40.4d
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (II) NVIDIA(0): Detected PCI Express Link width: 16X
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (EE) NVIDIA(0): Failed to assign any connected display devices to X screen 0.
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (EE) NVIDIA(0): Set AllowEmptyInitialConfiguration if you want the server
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (EE) NVIDIA(0): to start anyway
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (EE) NVIDIA(0): Failing initialization of X screen 0
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (II) NVIDIA: Freed GPU:0 (GPU-67aa2a79-211b-34f2-d4a2-a10040484d22) @
elo 03 11:34:46 gauri /usr/lib/gdm/gdm-x-session[9191]: (II) NVIDIA: PCI:0000:01:00.0
elo 03 11:34:47 gauri /usr/lib/gdm/gdm-x-session[9191]: (II) UnloadModule: "nvidia"
elo 03 11:34:47 gauri /usr/lib/gdm/gdm-x-session[9191]: (II) UnloadSubModule: "wfb"
elo 03 11:34:47 gauri /usr/lib/gdm/gdm-x-session[9191]: (II) UnloadSubModule: "fb"
elo 03 11:34:47 gauri /usr/lib/gdm/gdm-x-session[9191]: (EE) Screen(s) found, but none have a usable configuration.
elo 03 11:34:47 gauri /usr/lib/gdm/gdm-x-session[9191]: (EE)
elo 03 11:34:47 gauri /usr/lib/gdm/gdm-x-session[9191]: Fatal server error:
elo 03 11:34:47 gauri /usr/lib/gdm/gdm-x-session[9191]: (EE) no screens found(EE)
elo 03 11:34:47 gauri /usr/lib/gdm/gdm-x-session[9191]: (EE)
elo 03 11:34:47 gauri /usr/lib/gdm/gdm-x-session[9191]: Please consult the The X.Org Foundation support
elo 03 11:34:47 gauri /usr/lib/gdm/gdm-x-session[9191]: at http://wiki.x.org
elo 03 11:34:47 gauri /usr/lib/gdm/gdm-x-session[9191]: for help.
elo 03 11:34:47 gauri /usr/lib/gdm/gdm-x-session[9191]: (EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information.
elo 03 11:34:47 gauri /usr/lib/gdm/gdm-x-session[9191]: (EE)
elo 03 11:34:47 gauri /usr/lib/gdm/gdm-x-session[9191]: (EE) Server terminated with error (1). Closing log file.
elo 03 11:34:47 gauri /usr/lib/gdm/gdm-x-session[9191]: Unable to run X serverThere are hardly any interesting information in /var/log/Xorg.0.log:
[ 1219.955]
X.Org X Server 1.17.2
Release Date: 2015-06-16
[ 1219.955] X Protocol Version 11, Revision 0
[ 1219.955] Build Operating System: Linux 4.0.4-2-ARCH x86_64
[ 1219.955] Current Operating System: Linux gauri 4.1.3-1-ARCH #1 SMP PREEMPT Wed Jul 22 20:37:12 CEST 2015 x86_64
[ 1219.955] Kernel command line: BOOT_IMAGE=/root/boot/vmlinuz-linux root=UUID=cfe3048d-dc98-4d86-adf1-dd6d27688f29 rw rootflags=subvol=root nolapic_timer vga=794 verbose
[ 1219.955] Build Date: 17 July 2015 05:38:19PM
[ 1219.955]
[ 1219.955] Current version of pixman: 0.32.6
[ 1219.955] Before reporting problems, check http://wiki.x.org
to make sure that you have the latest version.
[ 1219.955] Markers: (--) probed, (**) from config file, (==) default setting,
(++) from command line, (!!) notice, (II) informational,
(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[ 1219.955] (==) Log file: "/var/log/Xorg.0.log", Time: Mon Aug 3 11:40:49 2015
[ 1219.955] (==) Using config file: "/etc/X11/xorg.conf"
[ 1219.955] (==) Using config directory: "/etc/X11/xorg.conf.d"
[ 1219.955] (==) Using system config directory "/usr/share/X11/xorg.conf.d"
[ 1219.955] (==) ServerLayout "Layout0"
[ 1219.955] (**) |-->Screen "Screen0" (0)
[ 1219.955] (**) | |-->Monitor "Monitor0"
[ 1219.955] (**) | |-->Device "Device0"
[ 1219.955] (**) |-->Input Device "Keyboard0"
[ 1219.955] (**) |-->Input Device "Mouse0"
[ 1219.955] (==) Automatically adding devices
[ 1219.955] (==) Automatically enabling devices
[ 1219.955] (==) Automatically adding GPU devices
[ 1219.955] (WW) `fonts.dir' not found (or not valid) in "/usr/share/fonts/100dpi/".
[ 1219.955] Entry deleted from font path.
[ 1219.955] (Run 'mkfontdir' on "/usr/share/fonts/100dpi/").
[ 1219.955] (WW) `fonts.dir' not found (or not valid) in "/usr/share/fonts/75dpi/".
[ 1219.955] Entry deleted from font path.
[ 1219.955] (Run 'mkfontdir' on "/usr/share/fonts/75dpi/").
[ 1219.955] (==) FontPath set to:
/usr/share/fonts/misc/,
/usr/share/fonts/TTF/,
/usr/share/fonts/OTF/,
/usr/share/fonts/Type1/
[ 1219.955] (==) ModulePath set to "/usr/lib/xorg/modules"
[ 1219.955] (WW) Hotplugging is on, devices using drivers 'kbd', 'mouse' or 'vmmouse' will be disabled.
[ 1219.955] (WW) Disabling Keyboard0
[ 1219.955] (WW) Disabling Mouse0
[ 1219.955] (II) Loader magic: 0x817d60
[ 1219.955] (II) Module ABI versions:
[ 1219.955] X.Org ANSI C Emulation: 0.4
[ 1219.955] X.Org Video Driver: 19.0
[ 1219.955] X.Org XInput driver : 21.1
[ 1219.955] X.Org Server Extension : 9.0
[ 1219.957] (II) systemd-logind: took control of session /org/freedesktop/login1/session/c1011
[ 1219.958] (II) xfree86: Adding drm device (/dev/dri/card0)
[ 1219.958] (II) systemd-logind: got fd for /dev/dri/card0 226:0 fd 9 paused 0
[ 1219.959] (--) PCI:*(0:1:0:0) 10de:1380:1569:1380 rev 162, Mem @ 0xf6000000/16777216, 0xe0000000/268435456, 0xf0000000/33554432, I/O @ 0x0000e000/128, BIOS @ 0x????????/524288
[ 1219.959] (WW) Open ACPI failed (/var/run/acpid.socket) (No such file or directory)
[ 1219.959] (II) LoadModule: "glx"
[ 1219.959] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so
[ 1219.967] (II) Module glx: vendor="NVIDIA Corporation"
[ 1219.967] compiled for 4.0.2, module version = 1.0.0
[ 1219.967] Module class: X.Org Server Extension
[ 1219.967] (II) NVIDIA GLX Module 352.30 Tue Jul 21 18:22:32 PDT 2015
[ 1219.967] (II) LoadModule: "nvidia"
[ 1219.967] (II) Loading /usr/lib/xorg/modules/drivers/nvidia_drv.so
[ 1219.967] (II) Module nvidia: vendor="NVIDIA Corporation"
[ 1219.967] compiled for 4.0.2, module version = 1.0.0
[ 1219.967] Module class: X.Org Video Driver
[ 1219.967] (II) NVIDIA dlloader X Driver 352.30 Tue Jul 21 18:01:20 PDT 2015
[ 1219.967] (II) NVIDIA Unified Driver for all Supported NVIDIA GPUs
[ 1219.967] (++) using VT number 1
[ 1219.967] (II) Loading sub module "fb"
[ 1219.967] (II) LoadModule: "fb"
[ 1219.967] (II) Loading /usr/lib/xorg/modules/libfb.so
[ 1219.967] (II) Module fb: vendor="X.Org Foundation"
[ 1219.967] compiled for 1.17.2, module version = 1.0.0
[ 1219.968] ABI class: X.Org ANSI C Emulation, version 0.4
[ 1219.968] (II) Loading sub module "wfb"
[ 1219.968] (II) LoadModule: "wfb"
[ 1219.968] (II) Loading /usr/lib/xorg/modules/libwfb.so
[ 1219.968] (II) Module wfb: vendor="X.Org Foundation"
[ 1219.968] compiled for 1.17.2, module version = 1.0.0
[ 1219.968] ABI class: X.Org ANSI C Emulation, version 0.4
[ 1219.968] (II) Loading sub module "ramdac"
[ 1219.968] (II) LoadModule: "ramdac"
[ 1219.968] (II) Module "ramdac" already built-in
[ 1219.968] (**) NVIDIA(0): Depth 24, (--) framebuffer bpp 32
[ 1219.968] (==) NVIDIA(0): RGB weight 888
[ 1219.968] (==) NVIDIA(0): Default visual is TrueColor
[ 1219.968] (==) NVIDIA(0): Using gamma correction (1.0, 1.0, 1.0)
[ 1219.968] (**) NVIDIA(0): Enabling 2D accelerationnvidia-xconfig --query-gpu-info :
Number of GPUs: 1
GPU #0:
Name : GeForce GTX 750 Ti
UUID : GPU-67aa2a79-211b-34f2-d4a2-a10040484d22
PCI BusID : PCI:1:0:0
Number of Display Devices: 0lspci -k | grep -A 2 -E "(VGA|3D)" :
01:00.0 VGA compatible controller: NVIDIA Corporation GM107 [GeForce GTX 750 Ti] (rev a2)
Subsystem: Palit Microsystems Inc. Device 1380
Kernel driver in use: nvidiaI have tried several tricks like including nvidia driver in mkinitcpio, regerating /etc/X11/xorg.conf using nvidia-config --force-generate, including busid in the Device section, etc. but nothing helps. Here is the (re)generated /etc/X11/xorg.conf :
# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig: version 352.30 (buildmeister@swio-display-x64-rhel04-18) Tue Jul 21 19:36:26 PDT 2015
Section "ServerLayout"
Identifier "Layout0"
Screen 0 "Screen0"
InputDevice "Keyboard0" "CoreKeyboard"
InputDevice "Mouse0" "CorePointer"
EndSection
Section "Files"
EndSection
Section "InputDevice"
# generated from default
Identifier "Mouse0"
Driver "mouse"
Option "Protocol" "auto"
Option "Device" "/dev/psaux"
Option "Emulate3Buttons" "no"
Option "ZAxisMapping" "4 5"
EndSection
Section "InputDevice"
# generated from default
Identifier "Keyboard0"
Driver "kbd"
EndSection
Section "Monitor"
Identifier "Monitor0"
VendorName "Unknown"
ModelName "Unknown"
HorizSync 28.0 - 33.0
VertRefresh 43.0 - 72.0
Option "DPMS"
EndSection
Section "Device"
Identifier "Device0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
# BusID "PCI:1:0:0"
EndSection
Section "Screen"
Identifier "Screen0"
Device "Device0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
Depth 24
EndSubSection
EndSectionKernel parameters can be seen here:
[gauri timo]# cat /proc/cmdline
BOOT_IMAGE=/root/boot/vmlinuz-linux root=UUID=cfe3048d-dc98-4d86-adf1-dd6d27688f29 rw rootflags=subvol=root nolapic_timer vga=794 verboseI can access the console by stopping gdm remotely. Does anyone have ideas, how to fix this issue with nvidia?
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The root cause of it was a power supply malfunction, that was fixed by replacing hardware. I also reinstalled all the packages in the system, as something xorg-related seemed to have damaged because of a power failure. GDM starts successfully now.
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