Re: Change suspend type from kde menu

From	Max Nikulin <manikulin@gmail.com>
Newsgroups	linux.debian.user
Subject	Re: Change suspend type from kde menu
Date	2024-01-11 04:50 +0100
Message-ID	<HUUeR-2h2z-1@gated-at.bofh.it> (permalink)
References	(11 earlier) <HTehH-1dhQ-1@gated-at.bofh.it> <HTgMy-1eUc-15@gated-at.bofh.it> <HTucN-1nbG-1@gated-at.bofh.it> <HTOEx-1A1c-1@gated-at.bofh.it> <HUMAF-2bPb-5@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On 11/01/2024 02:32, Valerio Vanni wrote:
> Il 08/01/2024 04:29, Max Nikulin ha scritto:
>> On 07/01/2024 12:44, Max Nikulin wrote:
>>>
>>> setpriv --reuid 1000 --regid 1000 --init-groups --reset-env -- \
>>>     env XDG_RUNTIME_DIR="/run/user/1000" \
>>>     systemd-run --user --slice=app.slice -- \
>>>     xterm
>>
>> Instead of tricks with setting proper context for a process executed 
>> system-wide, I would consider a process running in user sessions and 
>> listening for D-Bus events:
> 
> So your idea would be stopping and starting channel play by dbus messages?
> I'm looking again with introspect, and I don't see anything like "stop" 
> in kaffeine.

It is independent ideas:
- Do not deal with user processes in system context (like 
/usr/lib/systemd/system-sleep/ scripts)
- Try to release dvb tuner device, so module can be unloaded.

I believe, it is a bug in the cx23885 module that it can not handle 
suspend/resume (and probably hibernate/thaw).

The following is related to avoiding "setpriv" in system context and 
listening for D-Bus events in user session scope:

>> $ dbus-monitor --system 
>> "type='signal',interface='org.freedesktop.login1.Manager',member='PrepareForSleep'"

suspend:

>> signal time=1704679441.870349 sender=:1.6 -> destination=(null 
>> destination) serial=3187 path=/org/freedesktop/login1; 
>> interface=org.freedesktop.login1.Manager; member=PrepareForSleep----------------------------------------------------^^^^^^^^^^^^^^^
>>     boolean true

resume:

>> signal time=1704679448.065409 sender=:1.6 -> destination=(null 
>> destination) serial=3233 path=/org/freedesktop/login1; 
>> interface=org.freedesktop.login1.Manager; member=PrepareForSleep
>>     boolean false
---------------^^^^^

>> A tiny python script may be more convenient than dbus-monitor and 
>> similar tools.

Killing and starting kaffeine in response to these signals may be a 
workaround if the application does not allow to release the device.

Not stopping playback and not releasing the device in response to the 
PrepareForSleep signal, from my point of view, is a bug in kaffeine. I 
have no idea if vlc (broken hardware acceleration in bookworm) or 
another application may be an alternative for you.

Stopping playback through D-Bus by a custom script might be performed 
either from PrepareForSleep D-Bus signal listener or from a system-sleep 
script. I will respond to another message.

Thread

Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2023-12-25 04:40 +0100
  Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2023-12-27 22:00 +0100
    Re: Change suspend type from kde menu Max Nikulin <manikulin@gmail.com> - 2023-12-28 02:50 +0100
    Re: Change suspend type from kde menu Franco Martelli <martellif67@gmail.com> - 2023-12-28 15:50 +0100
      Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2023-12-28 23:20 +0100
        Re: Change suspend type from kde menu Charles Curley <charlescurley@charlescurley.com> - 2023-12-29 00:20 +0100
          Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2023-12-29 02:30 +0100
            Re: Change suspend type from kde menu Max Nikulin <manikulin@gmail.com> - 2023-12-29 03:00 +0100
              Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2023-12-29 23:00 +0100
        Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-02 19:20 +0100
          Re: Change suspend type from kde menu Franco Martelli <martellif67@gmail.com> - 2024-01-03 17:20 +0100
            Re: Change suspend type from kde menu Greg Wooledge <greg@wooledge.org> - 2024-01-03 17:50 +0100
              Re: Change suspend type from kde menu Arno Lehmann <al@its-lehmann.de> - 2024-01-03 18:40 +0100
              Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-04 15:10 +0100
                Re: Change suspend type from kde menu Greg Wooledge <greg@wooledge.org> - 2024-01-04 16:30 +0100
                Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-05 18:00 +0100
                Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-05 20:00 +0100
                Re: Change suspend type from kde menu Greg Wooledge <greg@wooledge.org> - 2024-01-05 20:10 +0100
                Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-05 20:20 +0100
                Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-05 20:40 +0100
                Re: Change suspend type from kde menu Franco Martelli <martellif67@gmail.com> - 2024-01-05 20:50 +0100
                Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-05 21:30 +0100
                Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-05 21:50 +0100
                Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-05 23:40 +0100
                Re: Change suspend type from kde menu Greg Wooledge <greg@wooledge.org> - 2024-01-06 01:10 +0100
                Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-06 13:50 +0100
                Re: Change suspend type from kde menu Max Nikulin <manikulin@gmail.com> - 2024-01-06 16:30 +0100
                Re: Change suspend type from kde menu Max Nikulin <manikulin@gmail.com> - 2024-01-07 06:50 +0100
                Re: Change suspend type from kde menu Max Nikulin <manikulin@gmail.com> - 2024-01-08 04:40 +0100
                Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-10 20:40 +0100
                Re: Change suspend type from kde menu Max Nikulin <manikulin@gmail.com> - 2024-01-11 04:50 +0100
                Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-11 14:50 +0100
                Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-09 22:50 +0100
                Re: Change suspend type from kde menu Max Nikulin <manikulin@gmail.com> - 2024-01-11 05:00 +0100
                Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-11 15:30 +0100
                Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-11 16:40 +0100
                Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-09 19:40 +0100
            Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-04 00:00 +0100
              Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-04 15:10 +0100
                Re: Change suspend type from kde menu Max Nikulin <manikulin@gmail.com> - 2024-01-04 15:50 +0100
                Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-04 16:30 +0100
                Re: Change suspend type from kde menu Max Nikulin <manikulin@gmail.com> - 2024-01-04 17:20 +0100
                Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-05 18:10 +0100
                Re: Change suspend type from kde menu Max Nikulin <manikulin@gmail.com> - 2024-01-06 17:40 +0100
                Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-09 20:00 +0100
                Re: Change suspend type from kde menu Max Nikulin <manikulin@gmail.com> - 2024-01-11 05:20 +0100
                Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-11 15:20 +0100
                Re: Change suspend type from kde menu Max Nikulin <manikulin@gmail.com> - 2024-01-11 16:30 +0100
                Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-11 16:50 +0100
                Re: Change suspend type from kde menu Max Nikulin <manikulin@gmail.com> - 2024-01-12 04:00 +0100
                Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-12 12:10 +0100
                Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-12 15:40 +0100
                Re: Change suspend type from kde menu Max Nikulin <manikulin@gmail.com> - 2024-01-12 17:30 +0100
                Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-12 22:40 +0100
                Re: Change suspend type from kde menu Max Nikulin <manikulin@gmail.com> - 2024-01-13 16:30 +0100
                Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-13 16:40 +0100
                Re: Change suspend type from kde menu Max Nikulin <manikulin@gmail.com> - 2024-01-14 05:10 +0100
                Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-15 14:40 +0100
                Re: Change suspend type from kde menu Franco Martelli <martellif67@gmail.com> - 2024-01-12 15:10 +0100
                Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-12 15:40 +0100
                Re: Change suspend type from kde menu Franco Martelli <martellif67@gmail.com> - 2024-01-12 21:20 +0100
                Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-12 23:00 +0100
                Re: Change suspend type from kde menu Valerio Vanni <valerio.vanni@inwind.it> - 2024-01-15 14:50 +0100

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