Please be careful to only discuss one problem per bug report. If you're experiencing multiple problems then please open separate bugs for them.
Continuing with this bug... I suspect the problem here is that disk IO is directly affecting animations. They shouldn't normally be related to each other, but one way that can happen is if gnome-shell is blocked in writing a log message. It can become blocked if there are regular log messages being written, and then every 5 seconds the kernel will block in order to flush to disk. Please run this command in a Terminal window: journalctl -f Now reproduce the problem again and please tell us if the Terminal window shows NEW log messages while the freeze/stutter is happening. ** Changed in: gnome-shell (Ubuntu) Status: Confirmed => Incomplete ** Summary changed: - Gnome Shell pauses and stutters when under heavy load + Gnome Shell pauses and stutters while waiting (several seconds) for programs to launch -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1831369 Title: Gnome Shell pauses and stutters while waiting (several seconds) for programs to launch To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1831369/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs