Running Ubuntu Jaunty
kvm: 1:84+dfsg-0ubuntu12.3
on Linux 2.6.28-11, Windows XP VM worked properly
on Linux 2.6.28-15, Windows XP VM hanged with black screen
Upgraded to Ubuntu Karmic
kvm: 1:84+dfsg-0ubuntu12.3
on Linux 2.6.31-11, Windows XP VM hanged with black screen
Installed qemu-kvm instead of the old kvm package
qemu-kvm: 0.11.0-0ubuntu1
on Linux 2.6.31-11, Windows XP VM worked properly
It seems that upgrading to Karmic failed to switch over to qemu-kvm package. When qemu-kvm is installed manually, everything seems to work fine.
Testing Results:
Running Ubuntu Jaunty 0ubuntu12. 3
kvm: 1:84+dfsg-
on Linux 2.6.28-11, Windows XP VM worked properly
on Linux 2.6.28-15, Windows XP VM hanged with black screen
Upgraded to Ubuntu Karmic 0ubuntu12. 3
kvm: 1:84+dfsg-
on Linux 2.6.31-11, Windows XP VM hanged with black screen
Installed qemu-kvm instead of the old kvm package
qemu-kvm: 0.11.0-0ubuntu1
on Linux 2.6.31-11, Windows XP VM worked properly
It seems that upgrading to Karmic failed to switch over to qemu-kvm package. When qemu-kvm is installed manually, everything seems to work fine.