Query configuration information of dri drivers
xdriinfo [-display displayname] [command]
xdriinfo can be used to query configuration information of direct rendering drivers. If no command argument is specified it lists the names of the direct rendering drivers for all screens.
Valid commands are:
nscreens
Print the number of screens.
driver screen
Print the name of the direct rendering driver for screen.
options screen|driver
Print the XML document describing the configuration options of a driver. The driver can be specified directly by driver name or indirectly by screen number. If the driver name is specified directly then no X connection is needed.
DISPLAY
The default display.
X(7), xdpyinfo(1), xwininfo(1), xvinfo(1), glxinfo(1), xprop(1)
Felix Kuehling