> I think there is indeed a problem in clipmon: it calls x-get-selection-value > from a timer that runs every 2 sec. But if the call times out, and the value of > x-selection-timeout is more than 2 sec (the default is 5, I think), then this > will indeed wedge Emacs cold, for obvious reasons. In addition, the function > that waits for the timeout to expire also runs timers, which probably > exacerbates the problem. Hi, clipmon author here - this seems to be a problem on Linux as the Windows build (25.0.50.1) works okay on Windows 8.1, but I read that `x-get-selection-value' is obsolete in Emacs 25, and was changed to `gui-get-primary-selection' - http://stackoverflow.com/questions/28403647/emacs-25-yank-from-x-windows-primary-clipboard-buffer-with-keyboard . Does anyone know what might have changed in this function? If not I'll check git for any changes, and then I'll setup a Linux VM then I can test it out and do some debugging. Also tracking the issue here - https://github.com/bburns/clipmon/issues/3 Regards, Brian