I have a same problem. Windows XP guest os can not be accessed with vnc.
Host: Ubuntu Jaunty with kernel 2.6.30-020630-generic KVM: 84+dfsg-0ubuntu12
/usr/bin/kvm -S -M pc -m 384 -smp 1 -name xp -uuid 24101b4d-dd28-45c5-3934-b790fc0eef4a -monitor pty -pidfile /var/run/libvirt/qemu//xp.pid -localtime -no-acpi -boot c -drive file=/home/alan/VMs/libvirt/images/xp.qcow2,if=ide,index=0,boot=on -net nic,macaddr=54:52:00:7d:39:ae,vlan=0,model=ne2k_pci -net tap,fd=17,script=,vlan=0,ifname=vnet0 -serial pty -parallel none -usb -usbdevice tablet -vnc 127.0.0.1:0 -k en-us -soundhw es1370
I have a same problem. Windows XP guest os can not be accessed with vnc.
Host: Ubuntu Jaunty with kernel 2.6.30- 020630- generic
KVM: 84+dfsg-0ubuntu12
/usr/bin/kvm -S -M pc -m 384 -smp 1 -name xp -uuid 24101b4d- dd28-45c5- 3934-b790fc0eef 4a -monitor pty -pidfile /var/run/ libvirt/ qemu//xp. pid -localtime -no-acpi -boot c -drive file=/home/ alan/VMs/ libvirt/ images/ xp.qcow2, if=ide, index=0, boot=on -net nic,macaddr= 54:52:00: 7d:39:ae, vlan=0, model=ne2k_ pci -net tap,fd= 17,script= ,vlan=0, ifname= vnet0 -serial pty -parallel none -usb -usbdevice tablet -vnc 127.0.0.1:0 -k en-us -soundhw es1370