https://bugs.kde.org/show_bug.cgi?id=398756
--- Comment #2 from Ariangga <qs2...@gmail.com> --- I tried the suggestion in the documentation, and the one that works is disable the double click in Wacom preference and set the color space to 16 bit. I restarted my pc and it still works! Only disable double click would remove the jagged lines, but there is still a little bit lag in the first stroke, but with both disable double click and set color space to 16 bit, the bug is gone. Thanks a lot! I didn't expect to get such responsive answer! -- You are receiving this mail because: You are watching all bug changes.