ACPI video: remove output switching control

Remove the ACPI video output switching control as it never works.

With the patch applied,
ACPI video driver still catches the video output notification,
but it does nothing but raises the notification to userspace.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 0 insertions, 5 deletions

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index cdd2a6e8a3b7..f91fc5a65034 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -199,11 +199,6 @@ and is between 256 and 4096 characters. It is defined in the file
                         unusable.  The "log_buf_len" parameter may be useful
                         if you need to capture more output.
 
-        acpi_display_output=    [HW,ACPI]
-                        acpi_display_output=vendor
-                        acpi_display_output=video
-                        See above.
-
         acpi_irq_balance [HW,ACPI]
                         ACPI will balance active IRQs
                         default in APIC mode