On Freedesktop website I've found that it's a symptom of another bug (but in was about different graphics driver): https://nouveau.freedesktop.org/wiki/TroubleShooting/#index5h3 In addition: this problem I have had only in Unity, in Gnome it works without freezing.
-- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1622575 Title: System hangs randomly (log shows 'EQ overflowing'). To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1622575/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
