System cannot boot after last update

Question

I think that problem in display detection.
X server log file:
[ 26.434]
X.Org X Server 1.16.1
Release Date: 2014-09-21
[ 26.434] X Protocol Version 11, Revision 0
[ 26.434] Build Operating System: Linux 3.16.1-1-ARCH x86_64
[ 26.434] Current Operating System: Linux black 3.16.4-1-ARCH #1 SMP PREEMPT Mon Oct 6 08:22:27 CEST 2014 x86_64
[ 26.434] Kernel command line: BOOT_IMAGE=/vmlinuz-linux root=UUID=5db39538-f615-41e7-a67f-49b03b6a24be rw quiet
[ 26.434] Build Date: 21 September 2014 10:53:13AM
[ 26.435] (II) Module ABI versions:
[ 26.435] X.Org ANSI C Emulation: 0.4
[ 26.435] X.Org Video Driver: 18.0
[ 26.435] X.Org XInput driver : 21.0
[ 26.435] X.Org Server Extension : 8.0
[ 26.436] (EE) systemd-logind: failed to get session: PID 531 does not belong to any known session
[ 26.436] (II) xfree86: Adding drm device (/dev/dri/card0)
[ 26.438] (--) PCI: (0:0:2:0) 8086:0122:1043:844d rev 9, Mem @ 0xfb400000/4194304, 0xb0000000/268435456, I/O @ 0x0000f000/64
[ 26.438] (--) PCI:*(0:1:0:0) 10de:0600:1043:8268 rev 162, Mem @ 0xfa000000/16777216, 0xc0000000/268435456, 0xf8000000/33554432, I/O @ 0x0000e000/128, BIOS @ 0x????????/131072
[ 26.438] (WW) Open ACPI failed (/var/run/acpid.socket) (No such file or directory)
[ 26.438] (II) LoadModule: "glx"
[ 26.438] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so
[ 26.447] (II) Module glx: vendor="NVIDIA Corporation"
[ 26.447] compiled for 4.0.2, module version = 1.0.0
[ 26.447] Module class: X.Org Server Extension
[ 26.447] (II) NVIDIA GLX Module 343.22 Thu Sep 11 15:55:13 PDT 2014
Is problem in xorg server or nvidia driver? I don't know what to do.

Answer 1

Trilby wrote:
The system certainly boots - you just cant start X it would seem.
What was updated?  How do you start X?  Is that the full log, it looks like it has been cut off?
Yes, system starts but I can only work through ssh. Here is the last full log:
[ 26.918]
X.Org X Server 1.16.1
Release Date: 2014-09-21
[ 26.918] X Protocol Version 11, Revision 0
[ 26.918] Build Operating System: Linux 3.16.1-1-ARCH x86_64
[ 26.918] Current Operating System: Linux black 3.16.4-1-ARCH #1 SMP PREEMPT Mon Oct 6 08:22:27 CEST 2014 x86_64
[ 26.918] Kernel command line: BOOT_IMAGE=/vmlinuz-linux root=UUID=5db39538-f615-41e7-a67f-49b03b6a24be rw quiet
[ 26.918] Build Date: 21 September 2014 10:53:13AM
[ 26.918]
[ 26.919] Current version of pixman: 0.32.6
[ 26.919] Before reporting problems, check http://wiki.x.org
to make sure that you have the latest version.
[ 26.919] Markers: (--) probed, (**) from config file, (==) default setting,
(++) from command line, (!!) notice, (II) informational,
(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[ 26.919] (==) Log file: "/var/log/Xorg.0.log", Time: Tue Oct 14 21:33:08 2014
[ 26.919] (==) Using config file: "/etc/X11/xorg.conf"
[ 26.919] (==) Using config directory: "/etc/X11/xorg.conf.d"
[ 26.919] (==) Using system config directory "/usr/share/X11/xorg.conf.d"
[ 26.919] (==) ServerLayout "Layout0"
[ 26.919] (**) |-->Screen "Screen0" (0)
[ 26.919] (**) | |-->Monitor "Monitor0"
[ 26.919] (**) | |-->Device "Device0"
[ 26.919] (**) |-->Input Device "Keyboard0"
[ 26.919] (**) |-->Input Device "Mouse0"
[ 26.919] (==) Automatically adding devices
[ 26.919] (==) Automatically enabling devices
[ 26.919] (==) Automatically adding GPU devices
[ 26.919] (WW) The directory "/usr/share/fonts/OTF/" does not exist.
[ 26.919] Entry deleted from font path.
[ 26.919] (==) FontPath set to:
/usr/share/fonts/misc/,
/usr/share/fonts/TTF/,
/usr/share/fonts/Type1/,
/usr/share/fonts/100dpi/,
/usr/share/fonts/75dpi/
[ 26.919] (==) ModulePath set to "/usr/lib/xorg/modules"
[ 26.919] (WW) Hotplugging is on, devices using drivers 'kbd', 'mouse' or 'vmmouse' will be disabled.
[ 26.919] (WW) Disabling Keyboard0
[ 26.919] (WW) Disabling Mouse0
[ 26.919] (II) Loader magic: 0x818d80
[ 26.919] (II) Module ABI versions:
[ 26.919] X.Org ANSI C Emulation: 0.4
[ 26.919] X.Org Video Driver: 18.0
[ 26.919] X.Org XInput driver : 21.0
[ 26.919] X.Org Server Extension : 8.0
[ 26.920] (EE) systemd-logind: failed to get session: PID 543 does not belong to any known session
[ 26.920] (II) xfree86: Adding drm device (/dev/dri/card0)
[ 26.921] (--) PCI: (0:0:2:0) 8086:0122:1043:844d rev 9, Mem @ 0xfb400000/4194304, 0xb0000000/268435456, I/O @ 0x0000f000/64
[ 26.921] (--) PCI:*(0:1:0:0) 10de:0600:1043:8268 rev 162, Mem @ 0xfa000000/16777216, 0xc0000000/268435456, 0xf8000000/33554432, I/O @ 0x0000e000/128, BIOS @ 0x????????/131072
[ 26.921] (WW) Open ACPI failed (/var/run/acpid.socket) (No such file or directory)
[ 26.921] (II) LoadModule: "glx"
[ 26.922] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so
[ 26.928] (II) Module glx: vendor="NVIDIA Corporation"
[ 26.928] compiled for 4.0.2, module version = 1.0.0
[ 26.928] Module class: X.Org Server Extension
[ 26.928] (II) NVIDIA GLX Module 343.22 Thu Sep 11 15:55:13 PDT 2014
[ 26.928] (II) LoadModule: "nvidia"
[ 26.928] (II) Loading /usr/lib/xorg/modules/drivers/nvidia_drv.so
[ 26.928] (II) Module nvidia: vendor="NVIDIA Corporation"
[ 26.928] compiled for 4.0.2, module version = 1.0.0
[ 26.928] Module class: X.Org Video Driver
[ 26.928] (II) NVIDIA dlloader X Driver 343.22 Thu Sep 11 15:34:47 PDT 2014
[ 26.928] (II) NVIDIA Unified Driver for all Supported NVIDIA GPUs
[ 26.928] (++) using VT number 7
[ 26.940] (II) Loading sub module "fb"
[ 26.940] (II) LoadModule: "fb"
[ 26.940] (II) Loading /usr/lib/xorg/modules/libfb.so
[ 26.940] (II) Module fb: vendor="X.Org Foundation"
[ 26.940] compiled for 1.16.1, module version = 1.0.0
[ 26.940] ABI class: X.Org ANSI C Emulation, version 0.4
[ 26.940] (II) Loading sub module "wfb"
[ 26.940] (II) LoadModule: "wfb"
[ 26.940] (II) Loading /usr/lib/xorg/modules/libwfb.so
[ 26.941] (II) Module wfb: vendor="X.Org Foundation"
[ 26.941] compiled for 1.16.1, module version = 1.0.0
[ 26.941] ABI class: X.Org ANSI C Emulation, version 0.4
[ 26.941] (II) Loading sub module "ramdac"
[ 26.941] (II) LoadModule: "ramdac"
[ 26.941] (II) Module "ramdac" already built-in
[ 26.941] (WW) NVIDIA(0): The NVIDIA GeForce 8800 GTS 512 GPU installed in this system
[ 26.941] (WW) NVIDIA(0): is supported through the NVIDIA 340.xx Legacy drivers.
[ 26.941] (WW) NVIDIA(0): Please visit http://www.nvidia.com/object/unix.html for
[ 26.941] (WW) NVIDIA(0): more information. The 343.22 NVIDIA driver will ignore
[ 26.941] (WW) NVIDIA(0): this GPU. Continuing probe...
[ 26.941] (EE) No devices detected.
[ 26.941] (EE)
Fatal server error:
[ 26.941] (EE) no screens found(EE)
[ 26.941] (EE)
Please consult the The X.Org Foundation support
at http://wiki.x.org
for help.
[ 26.941] (EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information.
[ 26.941] (EE)
Thank you for your answer!