I have the same problem and it is a VNC session. At CentOS 7 server (3.10.0-229.20.1.el7.x86_64) I installed tigervnc-server.Whoever wrote:":8" -- is this in a VNC session? Are you using the nVidia graphics driver?
Then I connect to it using VNC-client from another CentOS 7 machine (client). After the authentication a message appears saying literally "Oh no! Something has gone wrong. A problem has ocurred and the system can't recover. Please log out and try again." And the server's desktop does not appear.
Tigervnc-server log is:
Code: Select all
cat /home/user/.vnc/localhost.localdomain\:9.log
Xvnc TigerVNC 1.2.80 - built Jun 10 2014 06:14:52
Copyright (C) 1999-2011 TigerVNC Team and many others (see README.txt)
See http://www.tigervnc.org for information on TigerVNC.
Underlying X server release 11500000, The X.Org Foundation
Initializing built-in extension Generic Event Extension
Initializing built-in extension SHAPE
Initializing built-in extension MIT-SHM
Initializing built-in extension XInputExtension
Initializing built-in extension XTEST
Initializing built-in extension BIG-REQUESTS
Initializing built-in extension SYNC
Initializing built-in extension XKEYBOARD
Initializing built-in extension XC-MISC
Initializing built-in extension XFIXES
Initializing built-in extension RENDER
Initializing built-in extension RANDR
Initializing built-in extension COMPOSITE
Initializing built-in extension DAMAGE
Initializing built-in extension MIT-SCREEN-SAVER
Initializing built-in extension DOUBLE-BUFFER
Initializing built-in extension RECORD
Initializing built-in extension DPMS
Initializing built-in extension X-Resource
Initializing built-in extension XVideo
Initializing built-in extension XVideo-MotionCompensation
Initializing built-in extension VNC-EXTENSION
Initializing built-in extension GLX
Mon Nov 23 23:52:42 2015
vncext: VNC extension running!
vncext: Listening for VNC connections on all interface(s), port 5909
vncext: created VNC server for screen 0
Xlib: extension "GLX" missing on display ":9".
Xlib: extension "GLX" missing on display ":9".
Xlib: extension "GLX" missing on display ":9".
gnome-session-is-accelerated: No hardware 3D support.
Xlib: extension "GLX" missing on display ":9".
gnome-session-check-accelerated: Helper exited with code 256
Xlib: extension "GLX" missing on display ":9".
Xlib: extension "GLX" missing on display ":9".
Xlib: extension "GLX" missing on display ":9".
gnome-session-is-accelerated: No hardware 3D support.
Xlib: extension "GLX" missing on display ":9".
gnome-session-check-accelerated: Helper exited with code 256
** (process:2982): WARNING **: software acceleration check failed: Child process exited with code 1
Tue Nov 24 01:06:36 2015
Connections: accepted: 174.145.9.251::56479
SConnection: Client needs protocol version 3.8
SConnection: Client requests security type VncAuth(2)
Tue Nov 24 01:06:40 2015
VNCSConnST: Server default pixel format depth 24 (32bpp) little-endian rgb888
Tue Nov 24 01:06:43 2015
Connections: closed: 174.145.9.251::56479 (Clean disconnection)
SMsgWriter: framebuffer updates 2
SMsgWriter: Tight rects 42, bytes 19734
SMsgWriter: raw bytes equivalent 10486264, compression ratio 531.380561
XIO: fatal IO error 11 (Resource temporarily unavailable) on X server ":9"
after 141 requests (141 known processed) with 0 events remaining.
What could be causing this? I will provide more details if needed.
Thank you.