Hi, In a dual-screen setup ( nvidia driver ; twiview ) you can't use your tablet stylus to draw on the 'scratchpad'. It's not a new bug ; this one exist since years ; but I always forget to report it. It's so minor ( note : Mouse can paint on scratchpad ).
The scratchpad's tablet code uses pure Qt for handling tablet events, which works horribly bad.
The solution is the same as for bug 334904 *** This bug has been marked as a duplicate of bug 334904 ***