https://bugs.kde.org/show_bug.cgi?id=381931
Bug ID: 381931
Summary: Surface Book pen support only works intermittently
Product: krita
Version: 3.1.4
Platform: MS Windows
OS: MS Windows
Status: UNCONFIRMED
Severity: normal
Priority: NOR
Component: tablet support
Assignee: krita-bugs-n...@kde.org
Reporter: st...@ficedula.co.uk
Target Milestone: ---
Using the pen with a Surface Book, Krita seems to only pick up the pen input
correctly some of the time.
I'm running at 200% DPI, and on all occasions, Krita will prompt me to choose
screen resolution - either 3000x2000 (Wintab) or 1500x1000 (Qt). On some
occasions, picking the top [Wintab] option will work absolutely fine, and the
pen input will work as expected. Other times, picking that option will operate
with the pen input being detected 'offset' from its actual position - as though
it hasn't detected the DPI correctly (i.e. positioning the pen 50% across the
screen, Krita draws at a position 25% across the screen).
This can happen both while the screen is docked into the base, or when it's
detached, so it's not dependent on which graphics card is active.
Sometimes, exiting Krita and restarting will fix it; other times, it won't, so
it seems rather random. I've never observed picking the Wintab option causing
it to work - that always seems broken (albeit I haven't exhaustively verified
that it *never* works!). I have installed the Wintab drivers for the Surface
Book.
The pen input works in other pen-enabled apps even when Krita's misdetecting
it, so it certainly doesn't appear to be a hardware fault.
If there's any way to gather additional debug info that would help in tracking
this down, I'm quite happy to do so, if anyone can direct me on how to do so.
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