Comment # 2 on bug 1120639 from Anatoly Bobrov

(In reply to Wolfgang Bauer from comment #1)
> Works fine here. (also using Leap 15.0 and krita 4.1.7 from KDE:Extra)
> 
> It sounds a bit like https://bugs.kde.org/show_bug.cgi?id=402296 though.
> (unfortunately that bug report doesn't have a screenshot so I cannot
> compare...)
> 
> Apparently caused by now having HiDPI on by default, so disabling this may
> be a workaround.
> 
> If that is indeed the problem, it should be fixed in the next version (AFAIK
> there will be a 4.1.8 in the next weeks), but I'll have a look at adding the
> fix to our package.

I have two machines with openSUSE Leap 15.0 installed, and I'm able to
reproduce this on both of them. I also tried deleting any user config files, it
didn't help.
Disabling HiDPI in krita settings didn't help either.