Hello,
I've recently started using an XP-Pen Artist 22E display tablet and it's been working brilliantly in almost all my applications including Krita!
I'm using 2x 24" Dells and 1x 22" XP-Pen with WinTab (and the Device Digtial Ink disabled in the drivers (and Tablet PC Input Service disabled in Windows 7 SP1 x64)).

However in Escape Motions Rebelle I noticed a lack of pressure sensitivity. I contacted their support and they got me to run some tests/debugging apps. They also told me that they're using the same framework as Krita and that I should see how the tablet/drivers behaved in that.

Up 'til this point I thought that Krita had been working with the XP-Pen, but when I tried it again I noticed pressure sensitivity was no longer working! I was super confused. Eventually I realised that pressure sensitivity only applies to the Primary/Main display! If any display is set as Extended then the pressure will not work.

Sometimes I could get the "Choose screen resolution" dialog to pop-up, and when I set the area manually (even though WinTab is also reporting the correct location for the active display...) the pressure sensitivity would work!


But the pen positioning appears to span all 3 displays. This elongates everything, e.g. circles become ovals:


The only work around I can think of is setting my XP-Pen Artist 22E to Primary display whenever I want to use Krita/Rebelle.. and this isn't really ideal
Are there any other ideas or solutions that might work? Or is this really just another UGEE/XP-Pen driver issue?

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Ehhhh...


during the writing of this post, after a lot of alt-tabbing/opening/closing of Krita, it's now working correctly on the display settings I defined manually in the "Choose screen resolution" dialog. How do I actually invoke this dialog box manually? and can I hotkey it somehow? (I have a feeling I might need to experiment with it more!).

So yea, now Pressure Sensitivity is only working on one display and I'm not entirely sure how to reliably change it to a different display if needed. Heh I'm super confused.

Okay, thanks for any ideas or thoughts!

Well, in the first place: this is something to complain to xp-pen about. Their drivers are broken. And while rebelle might also use Qt, we have our own tablet support code, based on Qt's, but with some extensions. You can call up the resolution dialog by pressing shifft and approaching the krita window with your stylus the first thing after starting krita: https://docs.krita.org/KritaFAQ#How_to_ ... on_Windows

Thank you! Holding down Shift is working well, I can now manually enter the correct display.
So is it only available once per session? Closing/restarting Krita is a small inconvenience for having pressure sensitivity on the correct monitor though!
I just wonder if I could hotkey it or somehow AutoHotKey a script for quickly switching displays?

As an end user/consumer I have no real idea as to the quality of XP-Pen's drivers (are they even "XP-Pen" drivers or just rebranded UC-Logic/UGEE/Yiynova drivers since the registry keys are stored in a \UCLogic\ subfolder?). I mean, they work very well in most of my applications.
From my testing so far:
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Working
Photoshop, Illustrator, CLIP Studio, Painter, Affinity Photo & Designer, openCanvas 6, MangaLabo, Mischief, BlackInk, TVPaint, Pencil2D, Drawpile, 3dsmax, Modo, Substance Painter, Mudbox, Zbrush

Issues
SAI (need to edit .ini settings for correct mapping)
SAI 2 (alt-tab after a display switch to get the updated/corrected coordinates)
MangaStudio EX4 (primary display smooth, OS Coodinates for multi-monitor causes jitters. discontinued software.)
ArtRage 4 (disable "Precise Stylus" for multi-monitor causes jitter. might be improved in v5, don't know.)
Rebelle 2, Krita/Gemini (sporadic pressure sensitivity and coordinate mismatch issues on extended displays. sometimes.)

Broken
Autodesk SketchBook Pro, openCanvas 5.5, MyPaint (only entire Monitor Mapping is available! To be fair, these apps have always been a multi-monitor nightmare, even with Wacom devices)
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This is my first non-Wacom branded tablet (after ~14 years of only Wacom!) and I'm super impressed especially as 100% of applications have been built around Wacom's monopoly.

I honestly wasn't sure if it was a driver or a software issue but now that I know, I'll definitely contact XP-Pen's support and hope they're willing to improve their drivers!

Thanks again!