=> confirming original comment : "Only installing the original precice Xstack (xserver-xorg-lts-precise), which removes the current xstack and after that installing the trusty xstack in one step without restart, works."
=> confirming original comment : xorg-lts- precise) , which removes the current xstack and after that installing the trusty xstack in one step without restart, works."
"Only installing the original precice Xstack (xserver-