This first happened when I swapped monitors for a different set. When I launch GIMP it always opens on my 2nd monitor and not the main. Main monitor is a 32" with 16:10 aspect ratio. 2nd is a 19" at 5:4. (Previous setup had monitors of the same aspect ratio and did not have this issue.)
The splash screen for GIMP shows on the main monitor and then the program launches on the 2nd.
Attempts to move it to the main monitor end up with the bottom of the program being off the screen and when maximized it takes up 80% of the screen and still hangs off the bottom.
(In above pics, menu bar is only 1 row wide on main monitor. The black below that is non-existent.)
Is there a way to force GNOME to forget window positions? The "center new windows" tweak does not work, it only centers it on the 2nd and all issues remain. Is there a way to force a window to open on a certain monitor (preferably without additional software or a huge script)?