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cursor calibration in Krita on Surface 3, Windows 10.

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riotnrrrd
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Hi there;

I've searched extensively and found several references to a similar problem, but no solution to mine - I'm hoping someone can help!

I've used Krita for a while now (love it!) but recently bought myself a MS Surface 3 (not to be confused with Surface PRO 3, though in many ways the same.)

First issue, couldn't get pressure sensitivity to work, even after installing Wintab drivers. Workaround by installing the 32-bit version instead of 64. Works just fine.

Except - the pen cursor calibration is slightly off. Not way out, just enough to be annoying. Went into control panel settings, recalibrated . . . no change.

Noticed (after reading of a similar problem in a forum search) that the problem only applies to the Krita *canvas*. Menus, toolbars, etc, are all fine, but as soon as the cursor crosses into canvas territory, it jumps.

It seemed to me that the Krita canvas was using the default, uncalibrated location of the cursor, rather than the corrected location I had just calibrated for. I tested this theory by going back into control panel pen calibration, and deliberately miscalibrating by a quite wide margin. Now, sure enough, everywhere else in Windows, including Krita toolbars etc, the cursor shows at the way-out position I just calibrated to, but when I hover over the canvas, bam, it jumps back to the just-slightly-out position I started with.

Everything I've found in a couple days of googling comes back to a reference to either a multi-monitor setting (which I'm not using - just the standalone tablet), or to turning screen scaling to 100% (which I've done) or re-installing the wintab drivers, which I've done multiple times, even found an older version to roll back to, which didn't help, and then updating to the latest.

Any further thoughts? Any information I should include? I'm using the latest release version of Krita (the 32bit, not 64, as mentioned), and have updated Windoze 10.

Don't think I've ever hit a problem I couldn't solve by digging through forums and finding somebody else's pre-existing solution to my problem - but today I am at a loss!

Thanks for any help!
Calum Smith
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halla
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Well, I only have an SP3, which had its own problems. I could only get the wintab drivers to work by installing the photoshop cc trial... Some people reported that the problem is with a missing msvc redist package for the wintab driver, but I couldn't confirm that. I don't have a calibration issue, though...

It might be that there's a difference between s3 and sp3, either in terms of the driver or even the hardware, which means we might have to use a different wintab function to get the cursor position. But that's really hard to figure out, so I don't have a solution for you right now, I'm afraid.
riotnrrrd
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Thanks for the suggestion, Boudewijn. Alas, it didn't help me out. As much as I love Krita, I guess I'll be switching to proprietary software for now :-(
Chris Jones
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I also have this calibration mismatch on my SP4 in Krita 2.9x, but found that the pen correctly touches down in the calibrated position in the new Krita 3.0 pre-alpha 2. However, the calibration data causes lines to be wobbly/glitchy. The greater the offset, the worse the wobble. Sadly this means having to stick with the default calibration, which leaves the cursor hidden behind the pen nib (unless you draw with the pen exactly vertically, which I'm pretty sure nobody does).

Since something changed between 2.9.11 and 3.0 that causes the calibration data to be recognised, does this mean the issue is on the radar?

(c:


calums
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Hey, me again (couldn't get into my old profile; made a new one).

Just wondering if there has been any progress on this issue. It's been a few years, I was kind of hoping the problem would go away, because I'd love to move back to Krita . . . maybe my best option is to upgrade to the newest Surface Pro? Having updated all the software (Krita, wintab, even PS CC) and tried again, I'm still facing the same cursor offset issue, as well as another one which I might make a separate post about.

I'd be happy to pay money to anybody who can fix these issues for me and the community - either to an individual or preferably as a donation to a society.

Thoughts?

Calum/RiotNrrrd
calums
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Found a successful workaround! Knew I would find it if I just kept digging through forums for long enough!

-Launch Krita using a mouse or other pointer - NOT THE PEN.
-Create a NEW document - don't open an existing one. Again using only the mouse.
-Hold shift and touch the pen to the canvas - now you get a little pop up menu asking about screen resolution.
-Leave the screen resolution the same (assuming it's correct) but enter manual values in the "offset" boxes - I found -7X, -5Y about right.
-The settings still have no effect. Close Krita, relaunch it.
-Good to go!

Except . . .

-You'll find the offset values you set apply to new documents you create, but already existing documents will still function at the uncorrected values. To get around this, instead of choosing "File->Open" choose "File->Open existing document as new document."
-Bam!

Now let's see if I can fix the other problem I'm still having. Feeling encouraged though!

Calum
kellym
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The little pop up menu doesnt appear. Is there a way to set it up without that shortcut?
Also, maybe it could also be i have the surface book.... i thought it would work the same as a the other surface... please help i want to use krita
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halla
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Which version of Krita are you using? Have you enabled the Windows 8 Pointer API or not? Have you installed the wintab drivers or not?
elementxstyle
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Very old thread here, but I might as well offer my solution to anyone new that is using Krita and having pen calibration issues.

The source of the problem whether you're using Surface or Desktop is display zoom.

I use a Gaomon drawing tablet that is 11" 1080p pen display. But Windows automatically renders it at 150% (Recommended) because it's a small display and a HD resolution.

This causes a lot of issues, including pen calibration.

If you right click on your desktop and go to Display settings, and go to Scale - > it should be 100%

Because any small display using a 1080p or higher resolution will default to 150% scale. You should scale it back to 100% so that the display is not zoomed in anyway.


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