Linux - Screen Control - Revision history

Tinker: /* Broker temporarily offline causes failure */

2024-12-30T19:41:34Z

Broker temporarily offline causes failure

← Older revision		Revision as of 15:41, 30 December 2024
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	gets it back online.		gets it back online.

			=== Slight oddity with vbetool ===
			For some strange reason, vbetool occasionally fails to actually do anything despite the '''remote-screen-control.service''' being properly initialised.

			One solution:

			Log into the machine and run:

			* <code>sudo /usr/sbin/vbetool dpms on</code>

			This seems to kick it back into operation...

2024-10-11T16:55:08Z

Notes

← Older revision		Revision as of 12:55, 11 October 2024
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	* <code>sudo apt install python-is-python3 python3-paho-mqtt</code>		* <code>sudo apt install python-is-python3 python3-paho-mqtt</code>

			=== Broker temporarily offline causes failure ===

			If this service loses contact with the broker, it does not try to find it again. Must find a solution to this...

			Meanwhile:

			* <code>sudo systemctl restart remote-screen-control.service</code>

			gets it back online.

2024-06-26T16:41:23Z

The Service

← Older revision		Revision as of 12:41, 26 June 2024
Line 118:		Line 118:
	[Unit]		[Unit]
	Description=Watch for MQTT messages to turn screen on/off		Description=Watch for MQTT messages to turn screen on/off
			Documentation=https://wiki.nerdmage.ca/index.php/Linux_-_Screen_Control
	After=multi-user.target network.target		After=multi-user.target network.target
	~~Restart=on-failure~~

	[Service]		[Service]
	ExecStart=<code>/usr/local/bin/screenremote.py</code>		ExecStart=<code>/usr/local/bin/screenremote.py</code>
	Type=simple		Type=simple
			Restart=on-failure

	[Install]		[Install]

2024-06-26T15:58:44Z

The Service

← Older revision		Revision as of 11:58, 26 June 2024
Line 118:		Line 118:
	[Unit]		[Unit]
	Description=Watch for MQTT messages to turn screen on/off		Description=Watch for MQTT messages to turn screen on/off
	After=multi-user.target		After=multi-user.target network.target
	Restart=on-failure		Restart=on-failure

2024-06-26T15:52:46Z

The Service

← Older revision		Revision as of 11:52, 26 June 2024
Line 119:		Line 119:
	Description=Watch for MQTT messages to turn screen on/off		Description=Watch for MQTT messages to turn screen on/off
	After=multi-user.target		After=multi-user.target
			Restart=on-failure

	[Service]		[Service]
Line 127:		Line 128:
	WantedBy=multi-user.target		WantedBy=multi-user.target
	</syntaxhighlight>		</syntaxhighlight>

			* <code>sudo systemctl daemon-reload</code>


	* <code>sudo systemctl enable remote-screen-control.service</code>		* <code>sudo systemctl enable remote-screen-control.service</code>

2024-06-25T15:05:54Z

non vbetool capable systems

← Older revision		Revision as of 11:05, 25 June 2024
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	* <code>xset -display :0.0 dpms force off</code>		* <code>xset -display :0.0 dpms force off</code>
	* <code>xset -display :0.0 dpms force on</code>		* <code>xset -display :0.0 dpms force on</code>
			<span style="color: rgb(186, 55, 42);" >As of yet... No solution for systems without '''X'''.</span>
	As of yet... No solution for systems without '''X'''.

	=== Python Weirdness ===		=== Python Weirdness ===

2024-06-25T15:05:23Z

non vbetool capable systems

← Older revision		Revision as of 11:05, 25 June 2024
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	* <code>xset -display :0.0 dpms force on</code>		* <code>xset -display :0.0 dpms force on</code>

	As of yet... No solution for ~~incompatible~~ systems without '''X'''.		As of yet... No solution for systems without '''X'''.

	=== Python Weirdness ===		=== Python Weirdness ===

2024-06-25T14:45:25Z

The Script

← Older revision		Revision as of 10:45, 25 June 2024
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	* <code>sudo vi /usr/local/bin/screenremote.py</code>		* <code>sudo vi /usr/local/bin/screenremote.py</code>

	<syntaxhighlight lang="python">		<syntaxhighlight lang="python" line>
	#!/usr/bin/env python		#!/usr/bin/env python

2024-06-25T14:44:55Z

The Service

← Older revision		Revision as of 10:44, 25 June 2024
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	* <code>sudo vi /etc/systemd/system/remote-screen-control.service</code>		* <code>sudo vi /etc/systemd/system/remote-screen-control.service</code>
	[Unit]
	Description=Watch for MQTT messages to turn screen on/off		<syntaxhighlight lang="ini" line>
	After=multi-user.target		[Unit]
			Description=Watch for MQTT messages to turn screen on/off
	[Service]		After=multi-user.target
	ExecStart=<code>/usr/local/bin/screenremote.py</code>
	Type=simple		[Service]
			ExecStart=<code>/usr/local/bin/screenremote.py</code>
	[Install]		Type=simple
	WantedBy=multi-user.target
			[Install]
			WantedBy=multi-user.target
			</syntaxhighlight>

	* <code>sudo systemctl enable remote-screen-control.service</code>		* <code>sudo systemctl enable remote-screen-control.service</code>
	* <code>sudo systemctl start remote-screen-control.service</code>		* <code>sudo systemctl start remote-screen-control.service</code>

2024-06-25T14:31:05Z

← Older revision		Revision as of 10:31, 25 June 2024
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	Specifically set up for all-in-one machines & laptops since these are a little difficult to shut off the screen without shutting down the machine itself.		Specifically set up for all-in-one machines & laptops since these are a little difficult to shut off the screen without shutting down the machine itself.

			== The Script ==
	* <code>sudo apt install vbetool</code>		* <code>sudo apt install vbetool</code>

	~~== The Script ==~~
	The following script needs to run as root...		The following script needs to run as root...