Pau <vim.u...@gmail.com> wrote:
>Hi Peter,
>
>indeed, this helps to understand the syntax!
>
>Thanks...
>
>But still, I get no xlock on suspending.
>
>This is GENERIC.MP#121 amd64
>
>And
>
>pyrrha(p1)| ls -l /etc/apm/suspend
>-rwxr--r-- 1 root wheel 28 Jun 2 21:03 /etc/apm/suspend
>
>pyrrha(p1)| cat /etc/apm/suspend
>#!/bin/sh
>pkill -USR1 xidle
>
>What am I doing wrong?
>
>Pau
>
>
>> pkill does take -USR1 as an option, but it is slightly stealthily
>mentioned.
>>
>>
>> -signal
>> A non-negative decimal number or symbolic signal name
>specifying
>> the signal to be sent instead of the default TERM. This
>option
>> is valid only when given as the first argument to pkill.
>>
>> USR1 is a signal. If you read the man page sigaction(2), it has a
>list
>> of possible signals. In this case, SIGUSR1 is described as
>> "user defined signal 1", which some programs use for specific events.
>>
>> xidle does have support for SIGUSR1:
>>
>> xidle uses the XScreenSaver(3) extension to receive inactivity
>events
>> when a timeout is specified, running a specific program after
>the elapsed
>> time. xidle will also run the program if it is sent a SIGUSR1
>signal, or
>> if the pointer sits in a corner of the screen for an amount of
>time.
>> Signal and corner locking are always enabled, whether -timeout
>is
>> specified or not.
>>
>>
>> And so when xidle receives the USR1 signal, it immediately triggers
>the
>> screensaver program.
>>
>> So, when apmd receives the "suspend event" it will run the
>> /etc/apm/suspend script. This script sends the SIGUSR1 signal to the
>> xidle program. xidle receives the signal, and since it has a special
>> behaviour for SIGUSR1, it then runs the specified screensaver program
>> xlock.
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In order for a signal to reach xidle, cuddle must be running.
Put a line with "xidle &" in your .xinitrc / .xsession file(s) prior to the
line that starts your window manager.
--
Sent from my phone. Please excuse any idiotic automated word choices. It
wasn't me. Honest.
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