Comment 1 for bug 1189277

One thing I've noticed: the last two times that this blank screen occurred, the following had happened right before it:

(1) My computer screen was blank (because of xscreensaver, probably?)
(2) I type my password to unlock the screen
(3) The session resumes, but immediately goes back into screensaver mode again
(4) I type my password again
(5) The session resumes. I am able to use the computer for a few moments before the screen turns blank again. This time, nothing I do can get the screen un-blank.