MyPaint switches to straight line mode when using Wacom pen


#1

Description of the Problem, or Question?

When I start painting with my Wacom pen, MyPaint immediately switches to straight line drawing… which obviously is kind of annoying and unintuitive. I have no idea why… I have no idea what I changed (as I don’t use MyPaint that often). It just started doing it and I don’t even know where I should start looking to fix it. I uninstalled and reinstalled MyPaint, the problem remains though. http://www.informatik.uni-bremen.de/~jannis/myPaintStraightLineIssue.gif illustrates the issue.

Basic System Details

MyPaint version:
1.1.0

Operating System + Version:
Fedora release 25 (Twenty Five), Cinnamon 3.4.6

Make and Model # of Graphic Tablet:
Lenovo X230 Tablet (one of those older convertible laptops with a Wacom digitizer)

Please Tell Us How to Reproduce the Problem in Steps.

Start MyPaint, start drawing in free hand mode, be amazed that it’s just a straight line.


#2

That’s a really old version of MyPaint, you might want to look at updating it if possible. If not, try starting mypaint with a temporary configuration from the command line with something like

mypaint -c /tmp/


#3

Yeah try our nightly flatpak which follows our master branch of MyPaint. The current builds also comes with tools that allows us to diagnose graphic tablet problems.

http://mypaint.org/downloads/#flatpak-nightly


#4

Thanks for the suggestions. However, starting with a temporary config changes nothing and that flatpak doesn’t install:

$ flatpak --user install mypaint-master-repo org.mypaint.MyPaint-Nightly
Erforderliche Laufzeit für org.mypaint.MyPaint-Nightly/x86_64/master (org.gnome.Platform/x86_64/3.24) ist nicht installiert. Suche läuft …
Die erforderliche Laufzeit org.gnome.Platform/x86_64/3.24 wurde in keiner konfigurierten entfernten Quelle gefunden.
Fehler: The Application org.mypaint.MyPaint-Nightly/x86_64/master requires the runtime org.gnome.Platform/x86_64/3.24 which is not installed

I tried building it from source, but gave up after 30 minutes of trying to resolve dependencies :-/


#5

Nevermind this, I built libmypaint from source and was able to compile and run mypaint from the current sources, that version works well.