Easy Debian's xbindkeys "always" had habit of waking CPU unnecessary, even with proper config file. I discovered it hard way, long time ago, while "hunting" with Maemo's powertop for a elusive beast that was consuming my battery power.

Maemo's xbindkeys doesn't have such issues. No idea what's the reason for oddity in ED's, but I just switched to using one from Maemo's repos.

/Estel