So, it looks like there's a race between the destruction of an QXcbScreen in response to a RANDR event in handleXcbEvent and (a) expose handling and (b) some timer. I'll forward this upstream and might let someone more familiar with Qt take over.
So, it looks like there's a race between the destruction of an QXcbScreen in response to a RANDR event in handleXcbEvent and (a) expose handling and (b) some timer. I'll forward this upstream and might let someone more familiar with Qt take over.