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authorMark Thompson <sw@jkqxz.net>2020-07-05 16:49:46 +0100
committerMark Thompson <sw@jkqxz.net>2020-08-09 20:18:49 +0100
commit991daf3895cf2c322e288f015ae8d5ef0d3b45f3 (patch)
tree8971a4093be6133c00ca243b25a94a033860037e /doc/indevs.texi
parentff14858a6045aa62cd508b4a6c50973a291c91aa (diff)
doc/indevs: Note improved behaviour of kmsgrab with Linux 5.7
Diffstat (limited to 'doc/indevs.texi')
-rw-r--r--doc/indevs.texi8
1 files changed, 6 insertions, 2 deletions
diff --git a/doc/indevs.texi b/doc/indevs.texi
index 0f33fc66d8..4d2312e201 100644
--- a/doc/indevs.texi
+++ b/doc/indevs.texi
@@ -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