[mythtv-users] Slave Backend Shutdown
jfabernathy at gmail.com
Thu Jun 25 16:00:02 UTC 2020
On 6/25/20 10:36 AM, DaveD wrote:
> Doesn't the RPI need power removed to get a full shutdown and, more
> importantly, have power re-applied to get it to start back up? Does
> it have a sleep mode that can be pre-programmed to wake up in time for
> the next recording? I can see the RPI used for a FE or always-on BE,
> but how do you get it to power up and down?
> If you watch the lights on a Pi during shutdown, the green light
> flashes 10 times, then stays on steady until the SD card has done its
> internal updates of the pending writes, then the green light goes out,
> indicating it's time to pull the plug. (this seems to have changed on
> the Pi4; no steady-on at the end) Any plug-pulling before then and
> all bets are off on the integrity of the card. Learned that the hard
> Dave D.
From my reading and experience, the RPi has no power management so no
sleep or hibernate modes. If you do a shutdown it requires the power to
be removed before it will reset. I use the Canakit PS which comes with
a push button switch to remove power.
IMHO, the RPi consumes less power running than my X86_64 PC mythbackend
in suspend mode. I've never had a mythbackend successfully suspend and
resume correctly more than a few times. So I just run mine 24/7 with a
UPS backend to ride me thru the glitches. I leave my RPi4 mythbackend
on all the time as well.
> On 6/25/20 4:52 AM, jksjdevelop wrote:
>> Just recently added a slave backend to my system which works very well.
>> Uses a Rasberry Pi to host a Hauppauge Dual HD USB tuner.
>> Has anybody got a way to shut the slave down after the last recording
>> of the day?
>> I use the Idle Screen <https://www.mythtv.org/wiki/Idle_Screen> on
>> the master frontend to shut it down after recordings have finished
>> and the front end is no longer in use. The slave backend seems to act
>> like a remote frontend in that it keeps the system going until it is
>> shut down manually.
>> This behaviour is not fully consistent, sometimes it does not keep
>> the master awake but ignoring that I am looking for a method of
>> automatically shutting it down.
>> I thought a possible solution would be to invoke slave shutdown using
>> SSH from the master as part of its shutdown routine but that will not
>> work as the slave is keeping the master alive.
>> mythtv-users mailing list
>> mythtv-users at mythtv.org
>> MythTV Forums:https://forum.mythtv.org
> mythtv-users mailing list
> mythtv-users at mythtv.org
> MythTV Forums: https://forum.mythtv.org
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