Posted by perepujal on Jan 17, 2021; 5:03pm
URL: https://forum.librecad.org/Pointer-recenters-itself-in-the-dialogs-tp5719323p5720072.html

Some advance on this matter:
The problem has nothing to do with LibreCAD, later on I found it appearing in other apps too.
I had fvwm disabling autoraise of popup windows but positioning the cursor on them, for some strange reason the mouse got  repositioned again and again.
Commenting out the WarpToWindow line in ./fvwm/config fixes this problem.

DestroyFunc EWMHActivateWindowFunc
AddToFunc EWMHActivateWindowFunc I Iconify Off
+ I Focus
+ I WarpToWindow 50 50

Sorry for the noise
Pere