dpkg --list 'xserver-xorg-video-*' | grep ^ii
ii  xserver-xorg-video-all         1:7.7+19              armhf        X.Org X server -- output driver metapackage
ii  xserver-xorg-video-amdgpu      18.1.99+git20190207-1 armhf        X.Org X server -- AMDGPU display driver
ii  xserver-xorg-video-ati         1:19.0.1-1            armhf        X.Org X server -- AMD/ATI display driver wrapper
ii  xserver-xorg-video-fbdev       1:0.5.0-1             armhf        X.Org X server -- fbdev display driver
ii  xserver-xorg-video-nouveau     1:1.0.16-1            armhf        X.Org X server -- Nouveau display driver
ii  xserver-xorg-video-radeon      1:19.0.1-1            armhf        X.Org X server -- AMD/ATI Radeon display driver
ii  xserver-xorg-video-vesa        1:2.4.0-1             armhf        X.Org X server -- VESA display driver