The xserver has its own modesetting driver so we should ensure that our xserver enables that, remove xf86-video-modesettings, and add a RPROVIDES to xserver for xf86-video-modesetting.
Not sure what version of xserver the integrated one was recommended in, but we should probably upgrade to 1.17 before doing this.
Done in oe-core 950846d019ffac21909a96d90af8cf7e5bdd5738.
New version: xserver-xorg: meta 2:1.17.2 code from oe-core git is included on yocto project verfied on master on 5b4e380b9b4335f4607d78d97345bbbda4c66e0e