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authorTim Gardner <tim.gardner@canonical.com>2017-03-22 09:07:20 -0600
committerSeung-Woo Kim <sw0312.kim@samsung.com>2021-01-06 10:25:56 +0900
commit47d8d0263c38b3e0813b986147b71b5d72559a8d (patch)
tree093a43eb8e2aad20a1389722d6d537525187b786
parenta413fb4e6481a3650c496a4236335fa717f69138 (diff)
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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> [sw0312.kim: backport mainline commit a4199f5eb809 to disable default vtcon blank] Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com> Change-Id: Ibccf73a8598b8470d8f010dc8f589ba90de36803
-rw-r--r--drivers/tty/vt/vt.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index ff3286fc22d8..47584b24d948 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -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);