Related: the calls to the vibration engine are sync dbus calls. Whenever the system is overloaded, that will result in long UI stalls. In other cases, shorter UI freezes can still be experienced.
See https://bugs.launchpad.net/ubuntu/+source/platform-api/+bug/1620553 -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to ubuntu-ui-toolkit in Ubuntu. https://bugs.launchpad.net/bugs/1571513 Title: Please turn off vibrate on touch/typing by default. It makes the phone feel much more laggy Status in Canonical System Image: New Status in Ubuntu UX: New Status in ubuntu-system-settings package in Ubuntu: Confirmed Status in ubuntu-ui-toolkit package in Ubuntu: Incomplete Bug description: Please turn off vibrate on touch/typing by default. It makes the phone feel much more laggy than it really is, which is bad for making a first impression on users. The reason I think is because the vibration mechanism runs for hundreds of milliseconds. Whereas visual and aural feedback is in the order of tens of milliseconds. So vibration feedback makes the phone feel much more laggy. Please turn it off by default. To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1571513/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
