@@ -889,11 +889,15 @@ If you don't understand what all of that means, you probably don't want this. L
DRM device to capture on. Defaults to @option{/dev/dri/card0}.
@item format
-Pixel format of the framebuffer. Defaults to @option{bgr0}.
+Pixel format of the framebuffer. This can be autodetected if you are running Linux 5.7
+or later, but needs to be provided for earlier versions. Defaults to @option{bgr0},
+which is the most common format used by the Linux console and Xorg X server.
@item format_modifier
Format modifier to signal on output frames. This is necessary to import correctly into
-some APIs, but can't be autodetected. See the libdrm documentation for possible values.
+some APIs. It can be autodetected if you are running Linux 5.7 or later, but will need
+to be provided explicitly when needed in earlier versions. See the libdrm documentation
+for possible values.
@item crtc_id
KMS CRTC ID to define the capture source. The first active plane on the given CRTC