On Thu, Dec 15, 2016 at 06:35:39AM +0200, Michael S. Tsirkin wrote:
> The problem always reproduces for me:
> - start qemu with -sdl
> - wait for guest to boot
> - click anywhere within guest screen
> - message "press ctrl+alt to exit capture" appears on screen,
>   but pressing that immediately restarts capture again
> 
> Note:
> - had to exit to another VT and kill qemu
> - why was I able to do that?
>   should not ctrl-alt-Fn be captured too?

Sounds related to:

commit 56f289f383a871e871f944c7226920b35794efe6
Author: Cole Robinson <crobinso@redhat.com>
Date:   Fri May 6 14:03:06 2016 -0400

    ui: sdl2: Release grab before opening console window

Stefan