Print displays and modes enumerated with the Vulkan function
vkGetPhysicalDeviceDisplayPropertiesKHR
Note that radv will not enumerate any displays if some other application holds drm master. This means, it will not print anything when run under X11, but will when run on a tty.
The proprietary nvidia driver has no such reservations, it will always enumerate all connected displays.
meson build
ninja -C build
build/vkdisplayinfo