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Toshiba Portege Z30A with Intel HD graphics, SDDM / LightDM, LxQt
Problems began on June 9th, after pacman -Syu (which included upgrade linux 4.5.4-1 -> 4.6.1-2)
On the next login, the screen freezes a few seconds after the graphical login of SDDM appeared. The number of seconds varies.
Today I tried if I could switch to console before the freeze by means of Ctrl-Alt-F2; this works and I am able to login in a console without problem.
Did another pacman -Syu, at no avail.
Then changed to LightDM: same behavior
# cat lightdm.log
[+0.00s] DEBUG: Logging to /var/log/lightdm/lightdm.log
[+0.00s] DEBUG: Starting Light Display Manager 1.18.1, UID=0 PID=224
[+0.00s] DEBUG: Loading configuration dirs from /usr/share/lightdm/lightdm.conf.d
[+0.00s] DEBUG: Loading configuration dirs from /usr/local/share/lightdm/lightdm.conf.d
[+0.00s] DEBUG: Loading configuration dirs from /etc/xdg/lightdm/lightdm.conf.d
[+0.00s] DEBUG: Loading configuration from /etc/lightdm/lightdm.conf
[+0.00s] DEBUG: Using D-Bus name org.freedesktop.DisplayManager
[+0.00s] DEBUG: Registered seat module xlocal
[+0.00s] DEBUG: Registered seat module xremote
[+0.00s] DEBUG: Registered seat module unity
[+0.01s] DEBUG: Monitoring logind for seats
[+0.01s] DEBUG: New seat added from logind: seat0
[+0.01s] DEBUG: Seat seat0: Loading properties from config section Seat:*
[+0.01s] DEBUG: Seat seat0: Starting
[+0.01s] DEBUG: Seat seat0: Creating greeter session
[+0.02s] DEBUG: Seat seat0: Creating display server of type x
[+0.02s] DEBUG: Could not run plymouth --ping: Failed to execute child process "plymouth" (No such file or directory)
[+0.02s] DEBUG: Using VT 7
[+0.02s] DEBUG: Seat seat0: Starting local X display on VT 7
[+0.02s] DEBUG: DisplayServer x-0: Logging to /var/log/lightdm/x-0.log
[+0.02s] DEBUG: DisplayServer x-0: Writing X server authority to /run/lightdm/root/:0
[+0.02s] DEBUG: DisplayServer x-0: Launching X Server
[+0.02s] DEBUG: Launching process 239: /usr/sbin/X :0 -seat seat0 -auth /run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
[+0.02s] DEBUG: DisplayServer x-0: Waiting for ready signal from X server :0
[+0.02s] DEBUG: Acquired bus name org.freedesktop.DisplayManager
[+0.02s] DEBUG: Registering seat with bus path /org/freedesktop/DisplayManager/Seat0
[+0.02s] WARNING: Error getting user list from org.freedesktop.Accounts: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.freedesktop.Accounts was not provided by any .service files
[+0.02s] DEBUG: Loading user config from /etc/lightdm/users.conf
[+0.02s] DEBUG: User vri added
[+1.83s] DEBUG: Got signal 10 from process 239
[+1.83s] DEBUG: DisplayServer x-0: Got signal from X server :0
[+1.83s] DEBUG: DisplayServer x-0: Connecting to XServer :0
[+2.05s] DEBUG: Seat seat0: Display server ready, starting session authentication
[+2.05s] DEBUG: Session pid=348: Started with service 'lightdm-greeter', username 'lightdm'
[+2.07s] DEBUG: Session pid=348: Authentication complete with return value 0: Success
[+2.07s] DEBUG: Seat seat0: Session authenticated, running command
[+2.07s] DEBUG: Session pid=348: Running command /usr/sbin/lightdm-gtk-greeter
[+2.07s] DEBUG: Creating shared data directory /var/lib/lightdm-data/lightdm
[+2.07s] DEBUG: Session pid=348: Logging to /var/log/lightdm/x-0-greeter.log
[+2.11s] DEBUG: Activating VT 7
[+2.11s] DEBUG: Activating login1 session c1
[+2.32s] DEBUG: Session pid=348: Greeter connected version=1.18.1 resettable=false
[+2.42s] DEBUG: Session pid=348: Greeter start authentication for vri
[+2.42s] DEBUG: Session pid=452: Started with service 'lightdm', username 'vri'
[+2.43s] DEBUG: Session pid=452: Got 1 message(s) from PAM
[+2.43s] DEBUG: Session pid=348: Prompt greeter with 1 message(s)
[+11.99s] DEBUG: Got signal 15 from process 1
[+11.99s] DEBUG: Caught Terminated signal, shutting down
[+11.99s] DEBUG: Stopping display manager
[+11.99s] DEBUG: Seat seat0: Stopping
[+11.99s] DEBUG: Seat seat0: Stopping display server
[+11.99s] DEBUG: Sending signal 15 to process 239
[+11.99s] DEBUG: Seat seat0: Stopping session
[+11.99s] DEBUG: Session pid=348: Sending SIGTERM
[+11.99s] DEBUG: Seat seat0: Stopping session
[+11.99s] DEBUG: Session pid=452: Sending SIGTERM
[+11.99s] DEBUG: Session pid=452: Terminated with signal 15
[+11.99s] DEBUG: Session: Failed during authentication
[+11.99s] DEBUG: Seat seat0: Session stopped
[+12.00s] DEBUG: Session pid=348: Greeter closed communication channel
[+12.01s] DEBUG: Session pid=348: Exited with return value 0
[+12.01s] DEBUG: Seat seat0: Session stopped
[+12.03s] DEBUG: Seat seat0 changes active session to
[+12.03s] CRITICAL: session_get_login1_session_id: assertion 'session != NULL' failed
[+17.00s] DEBUG: Sending signal 9 to process 239
[+17.00s] DEBUG: Process 239 terminated with signal 9
[+17.00s] DEBUG: DisplayServer x-0: X server stopped
[+17.00s] DEBUG: Releasing VT 7
[+17.00s] DEBUG: DisplayServer x-0: Removing X server authority /run/lightdm/root/:0
[+17.00s] DEBUG: Seat seat0: Display server stopped
[+17.00s] DEBUG: Seat seat0: Stopped
[+17.00s] DEBUG: Display manager stopped
[+17.00s] DEBUG: Stopping daemon
[+17.00s] DEBUG: Exiting with return value 0Clearly the screen freeze is after 2.43 s; keyboard and mouse unusable from then on, I just power off.
cat x-0-greeter.log
** Message: Starting lightdm-gtk-greeter 2.0.1 (Apr 29 2016, 20:22:22)
** Message: [Configuration] Reading file: /etc/lightdm/lightdm-gtk-greeter.conf
** (lightdm-gtk-greeter:359): WARNING **: [PIDs] Failed to execute command: upstart
** (process:443): WARNING **: Failed to register client: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.gnome.SessionManager was not provided by any .service files
** (lightdm-gtk-greeter:359): WARNING **: Error getting user list from org.freedesktop.Accounts: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.freedesktop.Accounts was not provided by any .service files
(lightdm-gtk-greeter:359): Gtk-WARNING **: Drawing a gadget with negative dimensions. Did you forget to allocate a size? (node menubar owner GreeterMenuBar)
(lightdm-gtk-greeter:359): Gdk-WARNING **: lightdm-gtk-greeter: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.Offline
This pretty much looks like the problem discussed in https://bbs.archlinux.org/viewtopic.php?id=213495, doesn't it?
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