From 1d24e3213b4a03c11ddeb0abee4b319f442191c1 Mon Sep 17 00:00:00 2001
From: Andrew DeFaria <Andrew@DeFaria.com>
Date: Fri, 9 Apr 2021 11:07:49 -0700
Subject: [PATCH] Moved this script into clearscm

---
 bin/monitorXScreenSaver.pl | 149 +++++++++++++++++++++++++++++++++++++
 1 file changed, 149 insertions(+)
 create mode 100755 bin/monitorXScreenSaver.pl

diff --git a/bin/monitorXScreenSaver.pl b/bin/monitorXScreenSaver.pl
new file mode 100755
index 0000000..3f8818b
--- /dev/null
+++ b/bin/monitorXScreenSaver.pl
@@ -0,0 +1,149 @@
+#!/usr/bin/perl
+use strict;
+use warnings;
+
+=pod
+
+=head1 NAME $RCSfile: monitorXScreenSaver.pl,v $
+
+Monitor xscreensaver and forcefully turn off screens when blanked. Note I had a
+problem before where the screens wouled unblank and not go into powersave mode.
+I think my new system doesn't have this problem anymore but I still run this.
+
+I'd like to augment this so that after blanking of the screen and some time
+thereafter the system would suspend. Suspending the system doesn't always work
+well. It doesn't work well on my MacBook running Ubuntu but it does seem to work
+OK on my Thelio Desktop from System76. But I have not implemented this yet.
+
+=head1 VERSION
+
+=over
+
+=item Author
+
+Andrew DeFaria <Andrew@DeFaria.com>
+
+=item Revision
+
+$Revision: 1.0 $
+
+=item Created:
+
+Fri 09 Apr 2021 10:50:28 AM PDT
+
+=item Modified:
+
+$Date: $
+
+=back
+
+=head1 SYNOPSIS
+
+ Usage: monitorXscreenSaver.pl [-u|sage] [-h|elp] [-v|erbose] [-de|bug]
+                               [-[no]da|emon] [-l|ogpath]
+
+ Where:
+   -u|sage           Print this usage
+   -h|elp            Detailed help
+   -v|erbose:        Verbose mode
+   -d|ebug:          Print debug messages
+   -l|ogpath <path>: Path to logfile (Default: /var/local/log)
+   -da|emon          Run in daemon mode (Default: -daemon)
+
+=head1 DESCRIPTION
+
+This script will monitor the xscreensaver process and forcefully powersave the
+monitors when blanked.
+
+=cut
+
+use FindBin;
+use Getopt::Long;
+use Pod::Usage;
+
+use lib "$FindBin::Bin/lib";
+
+use Display;
+use Logger;
+use Utils;
+
+my %opts = (
+  usage   => sub { pod2usage },
+  help    => sub { pod2usage(-verbose => 2)},
+  verbose => sub { set_verbose },
+  debug   => sub { set_debug },
+  daemon  => 1,
+  logpath => '/var/local/log',
+);
+
+my ($xscreensaver, $log);
+
+sub interrupt() {
+  $log->msg("$FindBin::Script shutdown");
+
+  # For Perl::Critic
+  return;
+} # interrupt
+
+## Main
+GetOptions(
+  \%opts,
+  'usage',
+  'help',
+  'verbose',
+  'debug',
+  'daemon!',
+  'logpath',
+) or pod2usage;
+
+$SIG{INT} = \&interrupt;
+
+$log = Logger->new(
+  path        => $opts{logpath},
+  timestamped => 1,
+  append      => $opts{append},
+);
+
+my $locked = 0;
+
+$| = 1;
+
+$log->msg('Started monitoring XScreenSaver');
+
+if ($opts{daemon}) {
+  # Perl complains if we reference $DB::OUT only once
+  display "EnterDaemonMode" unless $DB::OUT or get_debug;
+  no warnings;
+  EnterDaemonMode unless defined $DB::OUT or get_debug;
+  display "Back from EnterDaemonMode";
+  use warnings;
+} # if
+
+open $xscreensaver, '-|', 'xscreensaver-command -watch'
+  or $log->err("Unable to start xscreensaver-command -watch - $!", 1);
+
+while (<$xscreensaver>) {
+  $log->dbug("Received: $_");
+
+  if (/^LOCK/) {
+    $log->msg('Locked screen');
+    $locked = 1;
+
+    my $cmd = 'xset dpms force off';
+
+    $log->dbug("Calling $cmd");
+    system $cmd;
+    my $status = $?;
+
+    $log->dbug("Returned from $cmd");
+
+    if ($status == 0) {
+      $log->dbug('Success');
+    } else {
+      $log->err("Unable to call $cmd- $!");
+    } # if
+  } elsif ($locked and /^UNBLANK/) {
+    $log->msg('Unlocked screen');
+    $locked = 0;
+  } # if
+} # while
-- 
2.17.1