I'll second @neilcurrie. I installed xscreensaver a week ago and things have been fine. I continue to get frequent apport crash reports for xorg, but I haven't had any blackscreen lockups since disabling lightlocker and switching to xscreensave.
I'll second @neilcurrie. I installed xscreensaver a week ago and things have been fine. I continue to get frequent apport crash reports for xorg, but I haven't had any blackscreen lockups since disabling lightlocker and switching to xscreensave.