Windows kept getting lost #123
Description
For quite a while now, I've noticed that windows keep getting lost. By lost, I mean that I can see they're still running in "ps", but they don't appear in the buffer list, so there's no way to get them back. The one I noticed this morning is jetbrains toolbox, which is an app you generally run all the time, so it's very noticeable when it disappears. But it doesn't happen all the time, so it's hard to say too much specific about it. But I also seem to see it a lot in firefox. The only things I can think of those 2 apps have in common is that they are both apps where launching the program doesn't necessarily start a new process. Toolbox will take you to an existing one if it exists. Firefox, I believe, contacts an existing instance to launch the new URL. That may be irrelevant, just thought I'd point that out.
The only other interesting thing in my setup is I have an external monitor which gets switched off, so when that happens exwm will do whatever it does when one of its monitors disappears.
Maybe other people can give their experience on whether they see this happen.
I don't know how X11 works as far as, if the WM loses track of a window if it can recover it, but if so, it would be good if there was some function you could call to do that.
Oh yeah, I think I only have 2 workspaces, because if I try exwm-workspace-move-window, it only gives the option of 0 or 1, and I can't see it in the buffer list of either monitor, so I don't think it is lost to some other workspace.
If anyone has any suggestions on what elisp to run to see if it is hanging around somewhere in the exwm internals, let me know.