Public bug reported: [Impact] If a touchpad is connected to Intel LPSS PCI device, sometimes the first tap event can be dropped. Goodix touchpad has a rather small buffer so the time its parent devices spend in resuming need to be small.
[Fix] Remove Intel LPSS D3cold delay, which is the bottleneck of the situation. [Test] Intel had tested the patch and the result is positive. [Regression Potential] Low. Intel internally tested this so it should be rather safe. ** Affects: linux (Ubuntu) Importance: Undecided Status: Incomplete ** Affects: linux (Ubuntu Bionic) Importance: Undecided Status: Incomplete ** Affects: linux (Ubuntu Disco) Importance: Undecided Status: Incomplete ** Affects: linux (Ubuntu Eoan) Importance: Undecided Status: Incomplete ** Also affects: linux (Ubuntu Disco) Importance: Undecided Status: New ** Also affects: linux (Ubuntu Eoan) Importance: Undecided Status: New ** Also affects: linux (Ubuntu Bionic) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1840075 Title: Goodix touchpad may drop first input event To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1840075/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs