Comment 1 for bug 1655211

In Xorg.log: That indicated the mga driver was been loaded.

...
[ 28.801] (II) MGA: driver for Matrox chipsets: mga2064w, mga1064sg, mga2164w,
        mga2164w AGP, mgag100, mgag100 PCI, mgag200, mgag200 PCI,
        mgag200 SE A PCI, mgag200 SE B PCI, mgag200 EV Maxim,
        mgag200 ER SH7757, mgag200 eW Nuvoton, mgag200 eW3 Nuvoton,
        mgag200eH, mgag400, mgag550
[ 28.801] (II) modesetting: Driver for Modesetting Kernel Drivers: kms
[ 28.801] (II) FBDEV: driver for framebuffer: fbdev
[ 28.801] (II) VESA: driver for VESA chipsets: vesa
[ 28.802] (WW) Falling back to old probe method for modesetting
[ 28.802] (EE) open /dev/dri/card0: No such file or directory
[ 28.802] (WW) Falling back to old probe method for fbdev
[ 28.802] (II) Loading sub module "fbdevhw"
[ 28.802] (II) LoadModule: "fbdevhw"
[ 28.802] (II) Loading /usr/lib/xorg/modules/libfbdevhw.so
[ 28.802] (II) Module fbdevhw: vendor="X.Org Foundation"
[ 28.802] compiled for 1.18.4, module version = 0.0.2