I have one monitor and cintiq 13hd. When i use cintiq like the second monitor - didn't work pen pressure and brush freezes after lifting stylus pen away from tablet while cursor is on canvas, when set up like main monitor pen pressure work fine but appears cursor offset. Reproducible: Always I use windows 8.1 and last wacom drivers 6.3.15-2. And i tried reinstall wacom drivers and krita but it's didn't works.
Hi, I also have my cintiq setup as the second monitor and I have had the same problem, but that was because the Wacom desktop settings application got confused and assigned the tablet to the main monitor. I could 'fix' that by changing the settings in the wacom settings app. And sometimes, the wacom driver randomly decides that it needs to break again. Is that maybe the case for you, too?
Please test 3.0 as well.