I have Launchy on an Ubuntu 14.04 desktop, and I'm getting some odd behavior with setting my hotkey to Alt+Space. Even though I have disabled that binding to make way for Launchy, Launchy still complains that it's in use when I bring it up after every reboot. I end up having to map something (can be anything) to Alt+Space, and then disabling it again, and then Launchy lets me do it. One experiment I did was that I mapped Alt+Space in Sublime Text Editor to something, and that works even after reboot, leading me to think that the problem could be specific to Launchy. I posted this to Ubuntu Forums, but based on my last experiment, I was thinking that maybe there's something inside of Launchy that can be looked at.
I would say this isn't a big issue for me because I do have a workaround and I don't reboot a whole lot, but was just wondering if you had some insight as to why this may be happening. Thanks!