In my PPA, I rebuilt Lucid's xorg-server package with patch " 0001-dix-if-owner-events-is-true-for-passive-grabs-add-th.patch" (http://bugs.freedesktop.org/attachment.cgi?id=32100) applied (from http://bugs.freedesktop.org/show_bug.cgi?id=25400). This solved the problem.
Hence, I will mark this bug "invalid" in ddd, since it's an X server bug.
I will mark this bug "confirmed' in X server (Ubuntu) since at least 3 people are seeing it.
Hopefully, this patch or similar can be applied to the official Ubuntu package.
In my PPA, I rebuilt Lucid's xorg-server package with patch " 0001-dix- if-owner- events- is-true- for-passive- grabs-add- th.patch" (http:// bugs.freedeskto p.org/attachmen t.cgi?id= 32100) applied (from http:// bugs.freedeskto p.org/show_ bug.cgi? id=25400). This solved the problem.
Hence, I will mark this bug "invalid" in ddd, since it's an X server bug.
I will mark this bug "confirmed' in X server (Ubuntu) since at least 3 people are seeing it.
Hopefully, this patch or similar can be applied to the official Ubuntu package.