Comment 69 for bug 1680904

I've been experimenting with 4.12.3-041203-generic, not crashes but sometimes the screen goes blank for 3 seconds, from syslog

Jul 27 14:50:45 XPS13 org.gnome.Shell.desktop[1986]: intel_do_flush_locked failed: Cannot allocate memory

it recovers nicely, no apps gets killed and nothing gets restarted ( other than gnome desktop ??? )