I have had the same problem for about a month on my Ubuntu Dapper system. I didn't make the connection with screen saver but it is true that it only happens when the screen saver has been active but not every time. Usually once every few days. I exit my vncviewer sessions every evening. I never use rdesktop but I always use vncviewer. So vncviewer has always been running whenever I have had this problem. I stay logged in with my desktop up for days at a time. I also am not 100% sure that vncviewer had focus every time.
The only way I found to recover is to kill my X session with <CTRL><ALT><BS> but today I have too many hours of context in my various windows and I'm looking for another way. I am afraid to kill gdm as mentioned above because I think that will also kill the X server. Can someone tell me if that's so? I have this problem with both USB and PS2 mouse connections. I can remove one type of mouse and plug in the other and the system still finds the mouse and lets me move the pointer. No mouse button events ever get though. I can (and have as I write this) login on a console and run startx to get another desktop running. This desktop functions normally. I can run xev from a console and point it at either X session. The second X server will show mouse movements and mouse button events. The first X server shows the mouse movements but no mouse button events. This is running on a 4 processor Xeon box. Linux mogtest9 2.6.15-27-686 #1 SMP PREEMPT Sat Sep 16 02:13:27 UTC 2006 i686 GNU/Linux VNC Viewer Free Edition 4.1.1 for X - built May 29 2006 12:45:36 Copyright (C) 2002-2005 RealVNC Ltd. See http://www.realvnc.com for information on VNC. [EMAIL PROTECTED]:~$ X -version X Window System Version 7.0.0 Release Date: 21 December 2005 X Protocol Version 11, Revision 0, Release 7.0 Build Operating System:Linux 2.6.15.7 i686 Current Operating System: Linux mogtest9 2.6.15-27-686 #1 SMP PREEMPT Sat Sep 16 02:13:27 UTC 2006 i686 Build Date: 16 March 2006 Before reporting problems, check http://wiki.x.org to make sure that you have the latest version. Module Loader present [EMAIL PROTECTED]:~$ -- mouse issue screensaver + rdesktop https://launchpad.net/bugs/70075 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs