Comment 20 for bug 546650

The branch for fixing this in notify-osd I put up for review here: https://code.edge.launchpad.net/~macslow/notify-osd/fix-546650/+merge/22469

This keeps the changes within notify-osd. I don't fully understand why only this works and the old way for creating the "empty" input-mask failed, because the resulting input-mask in both cases is a 1x1 pixel "large" bitmap in the top left corner of a notification-bubble's window.

This will also still work with older version of gtk+. You can give that a try. Seb, if you want you can use the diff from that branch as a distro-patch for the moment until I rolled a new notify-osd release later this week. Still have to fight some other notify-osd bugs I want to put in this weeks release.