I've also run into this bug this morning when upgrading a Natty system to this release. I can get the mouse to work again by unplugging and re-plugging it (it's a USB mouse). This is using gdm as the session manager, lightdm doesn't seem to work for me but I haven't poked at it hard either.
My keyboard is PS/2, so unplugging and re-plugging doesn't seem to do anything, possibly because udev or X isn't seeing the change.
I'm not using an xorg.conf file either, maybe it's needed again? At least until this bug is fixed?
I've also run into this bug this morning when upgrading a Natty system to this release. I can get the mouse to work again by unplugging and re-plugging it (it's a USB mouse). This is using gdm as the session manager, lightdm doesn't seem to work for me but I haven't poked at it hard either.
My keyboard is PS/2, so unplugging and re-plugging doesn't seem to do anything, possibly because udev or X isn't seeing the change.
I'm not using an xorg.conf file either, maybe it's needed again? At least until this bug is fixed?
John