It happens exclusively with trying to open Jdownloader. System freezes up and you'll need to do a Ctrl-Alt-Backspace to restart session. Also, I can confirm that Jdownloader works flawless on Mint 13 MATE 32-bit so this affects Cinnamon only.
In syslog ....
Jun 5 11:34:46 Soaring rtkit-daemon[1749]: Successfully made thread 15813 of process 15813 (n/a) owned by '1000' high priority at nice level -11.
Jun 5 11:34:46 Soaring rtkit-daemon[1749]: Supervising 1 threads of 1 processes of 1 users.
Jun 5 11:34:46 Soaring pulseaudio[15813]: [pulseaudio] pid.c: Stale PID file, overwriting.
Jun 5 11:34:46 Soaring rtkit-daemon[1749]: Successfully made thread 15821 of process 15821 (n/a) owned by '1000' high priority at nice level -11.
Jun 5 11:34:46 Soaring rtkit-daemon[1749]: Supervising 2 threads of 2 processes of 1 users.
Jun 5 11:34:46 Soaring pulseaudio[15821]: [pulseaudio] pid.c: Daemon already running.
Jun 5 11:34:50 Soaring rtkit-daemon[1749]: Successfully made thread 15905 of process 15813 (n/a) owned by '1000' RT at priority 5.
Jun 5 11:34:50 Soaring rtkit-daemon[1749]: Supervising 2 threads of 1 processes of 1 users.
Jun 5 11:34:50 Soaring rtkit-daemon[1749]: Successfully made thread 15906 of process 15813 (n/a) owned by '1000' RT at priority 5.
Jun 5 11:34:50 Soaring rtkit-daemon[1749]: Supervising 3 threads of 1 processes of 1 users.
Jun 5 11:35:08 Soaring gnome-session[15684]: Gdk-WARNING: gnome-session: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.#012
Jun 5 11:35:08 Soaring mdm[15652]: WARNING: mdm_slave_xioerror_handler: Fatal X error - Restarting :0
Jun 5 11:35:09 Soaring acpid: client 15661[0:0] has disconnected
Jun 5 11:35:09 Soaring acpid: client 15661[0:0] has disconnected
Jun 5 11:35:09 Soaring acpid: client connected from 16050[0:0]
Jun 5 11:35:09 Soaring acpid: 1 client rule loaded
Jun 5 11:35:11 Soaring acpid: client connected from 16050[0:0]
Jun 5 11:35:11 Soaring acpid: 1 client rule loaded
Same here. Mint 13 Cinnamon 32-bit.
It happens exclusively with trying to open Jdownloader. System freezes up and you'll need to do a Ctrl-Alt-Backspace to restart session. Also, I can confirm that Jdownloader works flawless on Mint 13 MATE 32-bit so this affects Cinnamon only.
In syslog ....
Jun 5 11:34:46 Soaring rtkit-daemon[1749]: Successfully made thread 15813 of process 15813 (n/a) owned by '1000' high priority at nice level -11.
Jun 5 11:34:46 Soaring rtkit-daemon[1749]: Supervising 1 threads of 1 processes of 1 users.
Jun 5 11:34:46 Soaring pulseaudio[15813]: [pulseaudio] pid.c: Stale PID file, overwriting.
Jun 5 11:34:46 Soaring rtkit-daemon[1749]: Successfully made thread 15821 of process 15821 (n/a) owned by '1000' high priority at nice level -11.
Jun 5 11:34:46 Soaring rtkit-daemon[1749]: Supervising 2 threads of 2 processes of 1 users.
Jun 5 11:34:46 Soaring pulseaudio[15821]: [pulseaudio] pid.c: Daemon already running.
Jun 5 11:34:50 Soaring rtkit-daemon[1749]: Successfully made thread 15905 of process 15813 (n/a) owned by '1000' RT at priority 5.
Jun 5 11:34:50 Soaring rtkit-daemon[1749]: Supervising 2 threads of 1 processes of 1 users.
Jun 5 11:34:50 Soaring rtkit-daemon[1749]: Successfully made thread 15906 of process 15813 (n/a) owned by '1000' RT at priority 5.
Jun 5 11:34:50 Soaring rtkit-daemon[1749]: Supervising 3 threads of 1 processes of 1 users.
Jun 5 11:35:08 Soaring gnome-session[ 15684]: Gdk-WARNING: gnome-session: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.#012
Jun 5 11:35:08 Soaring mdm[15652]: WARNING: mdm_slave_ xioerror_ handler: Fatal X error - Restarting :0
Jun 5 11:35:09 Soaring acpid: client 15661[0:0] has disconnected
Jun 5 11:35:09 Soaring acpid: client 15661[0:0] has disconnected
Jun 5 11:35:09 Soaring acpid: client connected from 16050[0:0]
Jun 5 11:35:09 Soaring acpid: 1 client rule loaded
Jun 5 11:35:11 Soaring acpid: client connected from 16050[0:0]
Jun 5 11:35:11 Soaring acpid: 1 client rule loaded