Copyright (c) 2008 Yahoo!, Inc.
All rights reserved.
Written by: John Baldwin <jhb@FreeBSD.org>
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disc...
(The comments found at the beginning of the groff file "man4/dpms.4freebsd".)
- VESA BIOS DPMS driver
driver uses the VESA BIOS to manage an external display during suspend and
When the machine suspends,
driver turns the external display off.
When the machine resumes,
it restores the display to its state when the driver was first loaded.
The VESA BIOS DPMS calls do not provide any way to identify a particular
display or adapter to manipulate.
As a result,
this driver may have unexpected results on systems with multiple displays