Type of device (XP-PEN G640):
Brand and version of the device:
System (Windows 10):
Hello , i’m a french beginner in Krita and in drawing in general so i can’t explain precisely ^^’
I got this “weird lines” problem and i don’t know where it came from :
I had something similar a lot of years ago. It was that there was a protective plastic foil on my tablet. It had little bulges all over it and that had a similar effect like in your example whenever I passed the bulges with the pen. I had to remove the sheet. Do this wobbles always appear on the same spots of your tablet?
Thanks for your answer ! The lines wobbles on all the spots and there is no protective plastic (or its VERY thin but i don’t think there is one x) ). It might be a Krita option that i mistakely enabled but i don’t really know.
Does it happen with all the brushes?
Have you tried going to krita settings -> tablet settings and started the tablet debugging tool. I wonder if the lines get wiggley in there too. Does it work in other programs like gimp or something?
We have to narrow it down a bit.
Please check all of those tips: https://docs.krita.org/en/contributors_manual/user_support.html#quick-solutions
Ok so i tried on Autodesk Sketchbook and even if the wobbles are less visible, they are still there. I don’t really know how to use the debugging tool though 
But from what i saw i think that the problem comes from the tablet itself.
If you tried tips I recommended and it still doesn’t work, please just write to your tablet manufacturer, maybe they will have a better idea, especially if it is related to hardware, not software.
