Brush stroke won't end

Sometimes a tablet might be sending false pressure data from the stylus: maybe the sensor is constantly pressed a tiny amount, or there is a configuration glitch. Sometimes it helps to replace the nib of the pen with a spare one. If this doesn’t work, you can fix this by adjusting the Global Pressure Mapping setting in Edit → Settings.

• Adjust Global Pressure Mapping in Edit → Settings.
  • Click on the line to create a new node.
  • Move the node to the bottom of the coordinate system.
  • Move the node on the left-right (horizontal) axis while alternatively testing your tablet on the canvas.

Tip: If you find it hard to find the right setting, you can get the pressure values MyPaint (in version 0.9.0 and newer) sees by going to Help → Debug → Test Input Devices….