I have never hit this bug before, but for reference, I just hit it on a 10.04 LTS system; I let update-manager update it all the time so it should have all the lucid updates. It was freshly installed to 10.04 from a CD about 2 years ago. x86-64.
I wasn't doing anything weird, I had just picked up the laptop after having used it fine a few minutes prior. The same behaviour described above in the bug (left clicks going to focused window even if outside of it, right clicking on desktop seems to fix it) occured so I'm pretty sure I'm seeing the same thing. Being that I've been using this laptop with 10.04 nearly every day for over two years, I'd say that this is a "pretty rare" bug for me, but since the bug report matched exactly (and told me the workaround), I figured I'd add a comment. Other details: HPG71-340US agpgart-intel 0000:00:00.0: Intel Mobile IntelĀ® GM45 Express Chipset (--) PCI:*(0:0:2:0) 8086:2a42:103c:306b Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller rev 7, Mem @ 0xd0000000/4194304, 0xc0000000/268435456, I/O @ 0x00004110/8 (--) PCI: (0:0:2:1) 8086:2a43:103c:306b Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller rev 7, Mem @ 0xd2400000/1048576 Running compiz for window manager: ii compiz 1:0.8.4-0ubuntu15.3 OpenGL window and compositing manager ii xorg 1:7.5+5ubuntu1.1 X.Org X Window System -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/362359 Title: Focus gets stuck to a window - impossible to select other windows To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/362359/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs