Enable direct rendering: used for accelerated 3D and some 2D, like DMA
Name Category Description
libvdpau x11-libs VDPAU wrapper and trace libraries
xf86-video-glint x11-drivers GLINT/Permedia video driver
xf86-video-intel x11-drivers X.Org driver for Intel cards
xf86-video-mach64 x11-drivers ATI Mach64 video driver
xf86-video-mga x11-drivers Matrox video driver
xf86-video-modesetting x11-drivers Unaccelerated generic driver for kernel modesetting
xf86-video-openchrome x11-drivers X.Org driver for VIA/S3G cards
xf86-video-r128 x11-drivers ATI Rage128 video driver
xf86-video-savage x11-drivers S3 Savage video driver
xf86-video-sis x11-drivers SiS and XGI video driver
xf86-video-sunffb x11-drivers SUNFFB video driver
xf86-video-tdfx x11-drivers 3Dfx video driver
xf86-video-virtualbox x11-drivers VirtualBox X11 video driver for Gentoo guest
xfwm4 xfce-base Window manager for the Xfce desktop environment

Thank you!