X server lockups with the "EQ overflowing" lock message have also been reported for other types of hardware besides NVIDIA and are described in this freedesktop bug report:
https://bugs.freedesktop.org/show_bug.cgi?id=38029&GoAheadAndLogIn=1 -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org