On the advice of Chris Penalver (thank you, once again), I upgraded my Dell XPS 13 (9343) from BIOS A05 to BIOS A07 (see thread above for guidance on how to make the upgrade. I downloaded the new BIOS 9343_BIOS_Rev_A07.exe from http://www.dell.com/support/home/us/en/04/Drivers/DriversDetails?driverId=28M21 and followed the instructions above.
The following command(s) report the BIOS and release date: sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date which are, after the upgrade: A07 11/11/2015 The new BIOS appears to have resolved the problem, or at least I've had no recurrences since making the BIOS upgrade Thank you. ** Changed in: xorg (Ubuntu) Status: Incomplete => New ** Changed in: xorg (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1576844 Title: Touchpad/Trackpad freezes then eventually unfreezes (repeatedly) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1576844/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs