I have also experienced the same issue with qemu-system-ppc64. It appears that ppc64 is not able to communicate with the USB controller. This issue is not seen with with qemu-system-ppc.
tboyes@tboyes-dev:~/qemu$ qemu-system-ppc64 -serial stdio -m 1024 -net nic -net user debian-ppc.qcow2 -cdrom debian-6.0.5-powerpc-netinst.iso -boot d VNC server running on `127.0.0.1:5901' C>> annot manage 'OHCI USB controller' PCI device type 'usb': >> 106b 3f (c 3 10) >> ============================================================= >> OpenBIOS 1.0 [May 30 2012 16:55] >> Configuration device id QEMU version 1 machine id 3 >> CPUs: 1 >> Memory: 1024M >> UUID: 00000000-0000-0000-0000-000000000000 >> CPU type PowerPC,970FX usb-kbd: warning: key event queue full usb-kbd: warning: key event queue full usb-kbd: warning: key event queue full usb-kbd: warning: key event queue full -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1004050 Title: qemu-system-ppc64 by default has non-working keyboard Status in QEMU: New Bug description: Compile qemu from git and do: ./ppc64-softmmu/qemu-system-ppc64 (ie. no parameters). It boots to an OpenBIOS prompt. However the keyboard doesn't work. After ~10 keypresses, qemu just says: usb-kbd: warning: key event queue full usb-kbd: warning: key event queue full usb-kbd: warning: key event queue full usb-kbd: warning: key event queue full There is no indication inside the guest that OpenBIOS is seeing keyboard events. Also there's no indication of what type of keyboard devices are available, nor what we should use. To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1004050/+subscriptions