Re: Making VDR run under Systemd

Hallo,

the problem for the shutdown bottom "no -s option" (not parameter) is in 
/etc/vdr/config.d/00-vdr.conf
where the line 21 concerning shutdown is commented out:

#--shutdown=/usr/lib/vdr/vdr-shutdown.wrapper

I uncommented it and it worked for me with the power-off-buttom on the 
remote control. Perhaps this will help you.

VDR 2.4.2 on linux mate 20.4

Regards

gbruno

Am 12.09.21 um 11:46 schrieb Marko Mäkelä:
> Hi all,
> 
> I was an active VDR user from about 2004 to 2010 when my children were 
> younger and there was a need to record TV programs for them. The old 
> setup was more or less abandoned when I got a smart TV and the family 
> started to use video streaming services.
> 
> Some years ago, I got a Raspberry Pi 2 B and an Astrometa DVB-T2 USB 
> stick that also includes an infrared receiver. Because its bundled 
> remote control unit (RCU) has much fewer buttons than the one that I got 
> with the Hauppauge Nova-T PCI 90002 years ago, I configured lircd to 
> translate the RC5 codes from the old RCU. For output, I am using 
> rpihddevice.
> 
> Yesterday, I upgraded to VDR 2.5.6 and rpihddevice 1.0.4 from 
> git://projects.vdr-developer.org/vdr-plugin-rpihddevice.git while 
> keeping the rest of the Raspbian 9.13 mostly intact.
> 
> I installed the self-built software simply by replacing the original 
> /usr/bin/vdr that was part of the distribution's vdr 2.2.0 package, and 
> copying the plugin to /usr/lib/vdr/plugins/. It might not be the 
> cleanest solution, but it worked for me.
> 
> I had some trouble with Systemd, which I resolved by creating a 
> configuration file:
> 
> # cat > /etc/systemd/system/vdr.service << EOF
> [Service]
> Restart=on-failure
> RestartSec=1s
> ExecStart=/usr/bin/vdr
> TimeoutStartSec=infinity
> EOF
> # systemctl daemon-reload
> # service lightdm stop
> # service vdr start
> 
> I did not double-check it, but I understood that this could entirely 
> bypass the /etc/init.d/vdr script, which would invoke the runvdr script 
> (which normally runs vdr in a loop). If I choose Restart from the VDR 
> menu, systemd will restart it nicely.
> 
> I did not configure the Power button yet. Currently, VDR complains that 
> no -s parameter is given when I press the Power button on the RCU. 
> Ideally, I think that VDR should suspend the live video output and 
> somehow inform Systemd that the entire system may be suspended, as far 
> as VDR is concerned. (Of course, only if there are no recordings or 
> remote connections active to VDR.) Then, if nothing else prevents the 
> system from being shut down or suspended, Systemd would do it based on 
> its configuration.
> 
> Years ago, I developed some patches and configuration at 
> https://iki.fi/msmakela/software/vdr/ to achieve something like this on 
> my old system, and I would now like to revive this somehow. Ideally, the 
> Power button would shut down the DVB receiver and display some 
> indication on the OSD or the video frame buffer that the output has been 
> suspended.
> 
> If my Raspberry Pi were not an "always-on server" that runs some other 
> services as well, I might want to reimplement the "wake-on-RCU" hardware 
> that is generating a wake-on-LAN signal via the Nova-T PCI card, 
> possibly by extending 
> https://spellfoundry.com/product/sleepy-pi-2-usb-c/ or a similar product 
> that would implement a wake-on-timer for the Raspberry Pi. Then, the 
> system would power up nicely either by RCU or by a recording timer.
> Integrating the wake-on-timer logic with Systemd could be another 
> challenge. I might try this on PC hardware, which already supports 
> wake-on-timer out of the box. A quick search turned up a promising 
> starting point:
> https://www.freedesktop.org/software/systemd/man/systemd.timer.html
> 
> The motivation of this exercise is to have a stand-alone VDR front/back 
> end installation that plays nicely with Systemd, without reinventing any 
> logic around scheduling, startup, and shutdown.
> 
> Maybe one day, once some more progress has been made with Wayland and 
> when using a Raspberry Pi model with more GPU memory, one could press 
> the Power button on the RCU and have the live TV pop up either 
> fullscreen or in a window, on top of the graphical desktop (which would 
> be available for generic use).
> 
> Best regards,
> 
>      Marko
> 
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