Hi, I use Xephyr to connect to a remote Linux using XDMCP. Most of the time it works fine, but sometimes it happens something nasty. Maybe I push a wrong key combinations, or so, but the keyboard goes mad. It looks like I switch on a special mode, and I can switch it off if I press LeftShift + LeftCtrl + LeftWindowsKey + LeftAlt + F2 at the same time. (Maybe it works with "... + F1" too.) If Xephyr is in the wrong stage, my window manager is not getting the Alt+F1, Alt+F2, ... events. (The window manager does an XGrabKey() on them...) It is possible to rise this situation artifically if I press the Shift+Alt+Win+Ctrl+F2. I'm sure it's a Xephyr problem, because if I use VNC instead of XDMCP to connect to the remote Linux, I'm not able to reproduce the problem. I use the -keybd ephyr,,,xkbmodel=evdev params on Xephyr because of other keyboard problems. This param was an earlier advice on this list to solve other keyboard problems. Could You please suggest me something to eliminate this effect? u.