Description of the Problem, or Question?
I’m trying out drawing on a Lenovo Yoga with touch display and interactive pen. Pressure sensitivity works, but when lift the pen after drawing a line, mypaint doesn’t stop drawing the line, but instead when I next come close to the surface, it draws a straight line from the end of my last line to the new position. See the lines which I marked green here:
I also noticed that the curves of my lines aren’t smooth, but have corners, see the lines I marked red. Overall, drawing feels a bit laggy even when slow position tracking is turned off.
However, if I plug in my old Wacom Bamboo and use the exact same brushes, everything works fine, no weird lines or jagged curves, and most notably the brush reacts a lot faster and the response feels more immediate. CPU usage looks the same in both cases.
I was wondering whether this is an issue with GTK and I need to report it there? How do I find out?
Basic System Details
MyPaint version: It happens both with 1.2.0 and a self-compiled version from git.
Operating System + Version: Debian Stretch with Kernel 4.12 and Gnome 3.22
Make and Model # of Graphic Tablet: Lenovo Yoga 900s laptop with touch display and Lenovo ThinkPad Pen Pro. The pen shows up as its own device of type “Pen” in MyPaint’s device list.
Please Tell Us How to Reproduce the Problem in Steps.
Just regular drawing.
Are there any Errors Popping Up? If so, paste the text in the area shown below.
No, nothing popping up an nothing in the console output.