Touch Screen Pad, then it Stopped

I am using a winmax and installed 4.2.4. The touchscreen and touchpad worked this time, without having to use any “framework” style additions of ```
GRUB_CMDLINE_XEN_DEFAULT=“$GRUB_CMDLINE_XEN_DEFAULT ioapic_ack=new”


Does this mean I have to add it back again because dom0 updated?