found 913062 1.8.0-3 thanks I also experience this problem. It is intermittent, making it difficult to reproduce, and it may or may not depend on specific hardware.
Switching to a VT and killing the light-locker process restores control of the locked X session, _until_ the next time the XFCE attempts to lock the screen, at which point the X session displays only a totally red screen and is again completely unresponsive. There is no light-locker process running at that point. At this point, the only way out of the situation is to restart lightdm (or reboot). A workaround is to simply not use light-locker. I have not had this issue since switching to xscreensaver. -- Chris Howie http://www.chrishowie.com http://en.wikipedia.org/wiki/User:Crazycomputers If you correspond with me on a regular basis, please read this document: http://www.chrishowie.com/email-preferences/ PGP fingerprint: 2B7A B280 8B12 21CC 260A DF65 6FCE 505A CF83 38F5 ------------------------------------------------------------------------ IMPORTANT INFORMATION/DISCLAIMER This document should be read only by those persons to whom it is addressed. If you have received this message it was obviously addressed to you and therefore you can read it. Additionally, by sending an email to ANY of my addresses or to ANY mailing lists to which I am subscribed, whether intentionally or accidentally, you are agreeing that I am "the intended recipient," and that I may do whatever I wish with the contents of any message received from you, unless a pre-existing agreement prohibits me from so doing. This overrides any disclaimer or statement of confidentiality that may be included on your message.