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-rw-r--r--Documentation/fb/efifb.rst6
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/fb/efifb.rst b/Documentation/fb/efifb.rst
index eca38466487a..519550517fd4 100644
--- a/Documentation/fb/efifb.rst
+++ b/Documentation/fb/efifb.rst
@@ -57,4 +57,10 @@ mode=n
"rgb" or "bgr" to match specifically those pixel formats, or a number
for a mode with matching bits per pixel.
+auto
+ The EFI stub will choose the mode with the highest resolution (product
+ of horizontal and vertical resolution). If there are multiple modes
+ with the highest resolution, it will choose one with the highest color
+ depth.
+
Edgar Hucek <gimli@dark-green.com>