Feel a bit silly, I just realised that a year ago I had created an event script to disable the touchpad in tablet mode due to thinkpad acpi driver bug. However I used the event number instead of a unique symlink and with kernel updates the event number remapped to the touchscreen and thus disabled it in tablet mode. All fixed now, sorry for noise!
** Changed in: linux (Ubuntu) Status: Confirmed => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1788049 Title: Kernel 4.15.0 updates disabling touchscreen in tablet mode on X1 Yoga To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1788049/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs