Comment 45 for bug 1315369

I have a 4-monitor set up and idling out to the lock screen seems to black screen freeze it about 25% of the time since 14.04 update. I'm able to restart lightdm via SSH in order to bring the screen back, but I still have to logout in order to get full access to all 4 monitors again after it happens.

I've attached my Xorg log

I'll try to run through the debugging a little bit later to attach the dmesg and syslog