root@nanopi-a64-stretch:/usr/lib/dri# ls -l /sys/class/drm/
total 0
lrwxrwxrwx 1 root root    0 Nov  3 17:30 card0 -> ../../devices/platform/soc/1c40000.gpu/drm/card0
lrwxrwxrwx 1 root root    0 Nov  3 17:30 card1 -> ../../devices/platform/display-engine/drm/card1
lrwxrwxrwx 1 root root    0 Nov  3 17:30 card1-HDMI-A-1 -> ../../devices/platform/display-engine/drm/card1/card1-HDMI-A-1
lrwxrwxrwx 1 root root    0 Nov  3 17:30 renderD128 -> ../../devices/platform/soc/1c40000.gpu/drm/renderD128
-r--r--r-- 1 root root 4096 Nov  3 17:30 version