I just noticed: When I trigger the bug using a keyboard-hotkey (as described above) while having the pointer above a xev window, xev registers a Button-1-Down (and down only!) Event. I'll attach xev's output starting from the moment I pressed Volume-Up on my keyboard.
** Attachment added: "xev log while triggering the bug, with pointer above xev window" https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/41301/+attachment/1720839/+files/xev-log -- Mouse clicks stop working sporadically https://bugs.launchpad.net/bugs/41301 You received this bug notification because you are a member of Ubuntu Bugs, which is a direct subscriber. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs