Are you sure, that the hidden hardware mouse pointer problem started with Kernel 3.19? I have this issue since Kernel 4.0 (Intel HD Graphics 4400). My setup isn't really comparable (no Ubuntu, but openSUSE 13.2).
Are you sure, that the hidden hardware mouse pointer problem started with Kernel 3.19? I have this issue since Kernel 4.0 (Intel HD Graphics 4400). My setup isn't really comparable (no Ubuntu, but openSUSE 13.2).