I'll be firing up a kernel bisect this weekend to see if I can find the issue. From multiple reports (incuding some in the RHBZ[1]), 3.16 works and 3.17 has issues. 3.18 and 3.19-rc7 have no improvements.
[1] https://bugzilla.redhat.com/show_bug.cgi?id=1188439 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1416601 Title: touchpad does not respond to tap-to-clicks in I2C mode in Ubuntu 15.04 on 2015 XPS 13 (9343) To manage notifications about this bug go to: https://bugs.launchpad.net/dell-sputnik/+bug/1416601/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
