Wake after Suspend issue with dvbt devices (LE12 Kodi 21)

[ShadowMask]

I notice you are using Ubuntu 22.04. Is that the LTS HWE version.

I am just using LibreElec, for this test it was version 11.0.6, but The version 12 nightlies did the same. I don't know what kernel that version has?

internal PCI/e

It's a Hauppauge Quad TV internal PCI/e card.

Thanks

[mvallevand]

I notice TVHeadend in LE  supplies a sleep.d file which does stop and start itself too. https://github.com/LibreELEC/LibreELEC.t...dend.power.

If you want to test something similar I will add it to to the LE 11 and 12 packages for everyone. NextPVR does not load modules so it should be straightforward

[ShadowMask]

I notice TVHeadend in LE  supplies a sleep.d file which does stop and start itself too. https://github.com/LibreELEC/LibreELEC.t...dend.power.

If you want to test something similar I will add it to to the LE 11 and 12 packages for everyone. NextPVR does not load modules so it should be straightforward

Happy to test it, thanks for looking further into this for me.

Thanks Martin

[satforall]

I notice you are using Ubuntu 22.04. Is that the LTS HWE version.

I am just using LibreElec, for this test it was version 11.0.6, but The version 12 nightlies did the same. I don't know what kernel that version has?

internal PCI/e

It's a Hauppauge Quad TV internal PCI/e card.

Thanks

SSH into your system and run to check your kernel version.

Code:

uname -r

[ShadowMask]

I notice TVHeadend in LE  supplies a sleep.d file which does stop and start itself too. https://github.com/LibreELEC/LibreELEC.t...dend.power.

If you want to test something similar I will add it to to the LE 11 and 12 packages for everyone. NextPVR does not load modules so it should be straightforward

Happy to test it, thanks for looking further into this for me.

I removed my kodi service addon to make sure that wasn't doing the restarts then created /storage/.config/sleep.d and put the following script in there as nextpvr.power:

Code:

#!/bin/sh

SERVICE="service.nextpvr"

case "$1" in
  pre)
    if systemctl is-active "$SERVICE" &>/dev/null ; then
      systemctl stop "$SERVICE"
    fi
    ;;
  post)
    if systemctl is-enabled "$SERVICE" &>/dev/null ; then
      systemctl start "$SERVICE"
    fi
    ;;
esac

The power script works fine and I can now playback and record after suspend. I will try it with timed recordings throughout the week.

Interestingly, despite having tvheadend installed and it working fine with suspend, I had no sleep.d and had to create it, but it all seems to be working now.

SSH into your system and run to check your kernel version.

Code:

uname -r

Currently on LE12 and it's running 6.6.14, but I think my issue was different from yours as I've never been able to record after suspend until today, despite trying several times through the years

[sub]

NextPVR has never attempted to do any power management stuff on Linux. It does on Windows, but not Linux.

I'll try to take a look this weekend, to see if I can have it cleanly exit DeviceHostLinux when the machine is put to sleep.

[ShadowMask]

NextPVR has never attempted to do any power management stuff on Linux. It does on Windows, but not Linux.

I'll try to take a look this weekend, to see if I can have it cleanly exit DeviceHostLinux when the machine is put to sleep.

Thanks sub,
To be honest I've never had an issue with power management as it's quite easy to setup within kodi in LibreElec anyway, I think it just is the tuners not being in a clean state when the system wakes.

Thank you all for your help

[sub]

In theory, when a stream is stopped, if there are no other active streams, the tuner is fully stopped and released, and should be in a good state for being suspended/resumed, but it's not something I've actively tested.

[ShadowMask]

In theory, when a stream is stopped, if there are no other active streams, the tuner is fully stopped and released, and should be in a good state for being suspended/resumed, but it's not something I've actively tested.

Yes,
It seems like more of a timing thing for me, if I suspend the system manually directly after ending playback of a channel or recording, then I would always get this issue when resuming. But if the system went to sleep after idle time, it may or may not happen.

[mvallevand]

Sub, it is definitely not released. I don't have tuner's primed but if I want to use dvbv5-scan I have to kill the child process.

Martin