Need updated Parallel Tools
Looks like the prlvideo driver needs to be rebuilt for Ubuntu 12.10. Ubuntu 12.10 is using X version 1.13 and the latest Parallels prlvideo driver is built for 1.12. Same goes for the mouse driver, which is why automousing no longer works.
Under Ubuntu 12.10, the Parallels install script doesn't copy over any drivers because they are the wrong version. I tried unpacking the tar file by hand and copying the prlvideo.so file to /usr/lib/xorg/modules/drivers, but get the following error when X starts (seen in /var/log/Xorg.0.log):
[ 9.929] (II) LoadModule: "prlvideo"
[ 9.929] (II) Loading /usr/lib/xorg/modules/drivers/prlvideo_drv.so
[ 9.930] (II) Module prlvideo: vendor="Parallels Inc."
[ 9.930] compiled for 1.12.0, module version = 2.0.0
[ 9.930] Module class: X.Org Video Driver
[ 9.930] ABI class: X.Org Video Driver, version 12.0
[ 9.930] (EE) module ABI major version (12) doesn't match the server's versi
on (13)
[ 9.930] (II) UnloadModule: "prlvideo"
[ 9.930] (II) Unloading prlvideo
[ 9.930] (EE) Failed to load module "prlvideo" (module requirement mismatch,
0)
Seems we need updated tools from Parallels that are specifically targeting 1.13.
My next attempt will be to see if it is possible to roll Ubuntu 12.10 back to using X version 1.12 rather than 1.13, but I doubt this will work, I suspect a lot of other things will break.
Cheers.