Timo: sorry, I misread your comment, my bad. The symlink is gone, but indeed, as you mention, the system continues to work: X starts normally on the next boot. I wonder how.
Anyway, bug fixed, starting from when you update to -vivid HWE stack (xserver-xorg-lts-vivid). Good thing, thanks to whoever did that.
Timo: sorry, I misread your comment, my bad. The symlink is gone, but indeed, as you mention, the system continues to work: X starts normally on the next boot. I wonder how.
Anyway, bug fixed, starting from when you update to -vivid HWE stack (xserver- xorg-lts- vivid). Good thing, thanks to whoever did that.