graphic: 0.286 performance: 0.166 device: 0.113 semantic: 0.089 other: 0.079 PID: 0.055 vnc: 0.043 debug: 0.042 permissions: 0.030 network: 0.029 files: 0.022 socket: 0.020 boot: 0.015 KVM: 0.008 debug: 0.321 other: 0.174 files: 0.110 network: 0.066 semantic: 0.053 device: 0.051 PID: 0.046 graphic: 0.042 performance: 0.041 boot: 0.029 socket: 0.022 vnc: 0.019 permissions: 0.013 KVM: 0.013 SDL UI switching to monitor half-broken and scrolling broken ctrl+alt+2 must be pressed 2 or more times for the monitor console window to appear with -sdl, the window flashes and disappears also before finally staying open backspace does not always work in -sdl also, and switching back and forth very quickly from the vga to the monitor windows, it hangs you need to do a proper code review of all the user interfaces. This is described a bit more here: https://lists.gnu.org/archive/html/qemu-devel/2016-05/msg00946.html But basically it's a libsdl bug: https://bugzilla.libsdl.org/show_bug.cgi?id=3287 i see, but there are still problems with the user interfaces. did you use SDL1.2 or SDL2 here? [Expired for QEMU because there has been no activity for 60 days.]