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by Aethaeryn 5128 days ago
I haven't had any issues with the multimonitors besides:

- The Fedora defaults for background image stretches a 1920x1080 picture across what is effectively 3840x1080 pixels. There doesn't appear to be an elegant way to set a background image for a multimonitor setup, so I just paste together two different 1920x1080 pictures to form a 3840x1080 picture when I need to set something as my background image.

- The panel defaults to being stretched across both screens so I needed to adjust its size. Very minor annoyance that this doesn't work by default.

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There's also a larger issue with fullscreen.

Fullscreen on most applications that try to launch fullscreen, especially games with SDL, appears to be broken. Apparently they see my displays as one large 3840x1080 monitor instead of two separate 1920x1080 monitors. They then throw some type of error about unsupported resolution and switch into windowed mode (or, rarely, they crash).

I set Ctrl+F11 as a custom hot key to force fullscreen, which seems to work on almost everything. So I launch things in windowed mode, drag the window to the monitor I want to use the application on, and then press Ctrl+F11 to make it take fullscreen on that monitor. If that for some reason doesn't work, I can maximize the screen and remove the Openbox window decoration.

VirtualBox is the one application I regularly use that seems to handle fullscreen okay without any effort on my part. RightCtrl+F makes the VM fullscreen on its current monitor without any issues and VirtualBox remembers this and has no issues launching into fullscreen, either. Thus, it's probably an issue with common libraries and not with LXDE itself.

GNOME 3 sometimes has problems similar to this, especially when games using SDL attempt to launch into fullscreen at the start. I prefer LXDE's workarounds to the ones I had to use in GNOME 3. I especially like LXDE+Openbox's ability to remove window decorations just by right clicking on the window title bar at the top and selecting the appropriate option.