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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>
hifive-unleashed-5.1
Tim Gardner 2017-03-22 09:07:20 -06:00 committed by Greg Kroah-Hartman
parent b2c663d155
commit a4199f5eb8
1 changed files with 1 additions and 1 deletions
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2
drivers/tty/vt/vt.c
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@ -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);