Comment 1 for bug 1847906

I am also affected by this after upgrading to 10.15 Catalina.

I experience the same behavior using `qemu-system-x86_64`, but I can't confirm whether other systems are also affected.

Building with SDL also fixed it for me so far:

* `brew edit`
* add `depends_on "sdl2"` among other dependencies
* replace `--enable-cocoa` with `--disable-cocoa`
* replace `--disable-sdl` with `--enable-sdl`
* save, quit, and `brew install --build-from-source qemu`