Commit a4199f5e authored Mar 22, 2017 by Tim Gardner Committed by Greg Kroah-Hartman Mar 31, 2017

tty: Disable default console blanking interval

BugLink: http://bugs.launchpad.net/bugs/869017



Console blanking is not enabling DPMS power saving (thereby negating any
power-saving benefit), and is simply turning the screen content blank. This
means that any crash output is invisible which is unhelpful on a server
(virtual or otherwise).

Furthermore, CRT burn in concerns should no longer govern the default case.
Affected users could always set consoleblank on the kernel command line.

Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jiri Slaby <jslaby@suse.com>
Cc: Adam Borowski <kilobyte@angband.pl>
Cc: Scot Doyle <lkml14@scotdoyle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent b2c663d1

drivers/tty/vt/vt.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -181,7 +181,7 @@ int console_blanked;

		static int vesa_blank_mode; /* 0:none 1:suspendV 2:suspendH 3:powerdown */
		static int vesa_off_interval;
		static int blankinterval = 10*60;
		static int blankinterval;
		core_param(consoleblank, blankinterval, int, 0444);

		static DECLARE_WORK(console_work, console_callback);

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