Draft: Workaround for a weird DisplayPort behavior on X11
This has been observed happening at least with integrated AMD gpu on a workstation, where every screen can be disconnected.
On X11 with DisplayPort connectors, sometimes the following happens:
- Disconnecting the only displayport connector will actually add a new QScreen called "DisplayPort-0"
- Then the old QScreen is renamed to ":0.0" becoming the usual fake screen
- But the assumption that when there is nothing connected there is only a fake QScreen gets broken
- When the connector gets connected again, ":0.0" gets removed, but this assertion fails because there was another screen in m_size
- Afterwards that other "DisplayPort-0" screen gets recycled and becomes the unique QScreen
- ScreenPool works anyways, because when ":0.0" gets removed, its containments get reassigned to "DisplayPort-0"
- Unfortunately an extra unneded desktop containment may have been created in the meantime This doesn't happen on wayland, where that extra screen does not get created