Adding some detail here: Switching back to xorg reproduces the bug 100%. I can click on the launcher, it seems to be the only thing that'll receive my clicks while the bug is active, but new apps launched while the bug is active are also unable to see mouse clicks.
Kernel is 4.15.0-29-generic #31-Ubuntu SMP Tue Jul 17 15:39:52 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux shotwell is 0.28.2 that came preinstalled, I've done nothing to it other than import a folder of photos and authenticate with Flickr for my upload key. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1784161 Title: Mouse inoperative in other apps while Shotwell is uploading to Flickr Status in xorg package in Ubuntu: New Bug description: I'm using Shotwell to Publish (ctrl+shift+P) photos to Flickr. Some of these uploads take quite a while, so I'd like to do other things while they're running. If I alt-tab over to Firefox or Slack or whatever, my mouse works normally, but if I alt-tab back to Shotwell to peek if the upload has completed yet, and then alt-tab over to another app again, now my mouse doesn't work. Pointer moves, yes. Doesn't produce mouse-over events, doesn't click, doesn't scroll. As soon as the upload completes in Shotwell, the mouse works normally again. I popped into freenode/#ubuntu IRC and they suggested trying Wayland. This behavior does not occur in Wayland, so it was suggested that I report it here under xorg. I'm running Ubuntu 18.04 LTS. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1784161/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp