Spontaneous turning-on

**RonM** · 2020-02-11, 15:40

Spontaneous turning-on

I suspect this has been addressed before, but I just had an annoying experience last night that I thought I'd post.

I normally listen to my radio while at my main workstation. When I'm done I put it to sleep, rather than fully power down, a I like seeing the time and the instant-on capacity.

However, the radio tends to turn fully on arbitrarily, I suspect in response to some form of minor power disruption, e.g. a surge or an "off" for a second or two. Normally this wouldn't matter, as there is nothing in the play queue. But if I put it to sleep when there is still a playlist, it starts to play. And so I woke up to a newly released but very old live recording of Ian and Sylvia, the excellently-recorded tunes wafting down the hallway from my office to the bedroom, where the dearly beloved was not amused.

I suppose the lesson is to clear any playlists or to turn the thing completely off. Anyone else have this experience?

I'm not sure it's possible to clear the playlist from the controls on the radio, and I wouldn't normally have access to SqueezeCntrl on my phone when I'm at the desk.

R.

**slartibartfast** · 2020-02-11, 16:15

Originally posted by RonM

I suspect this has been addressed before, but I just had an annoying experience last night that I thought I'd post.

I normally listen to my radio while at my main workstation. When I'm done I put it to sleep, rather than fully power down, a I like seeing the time and the instant-on capacity.

However, the radio tends to turn fully on arbitrarily, I suspect in response to some form of minor power disruption, e.g. a surge or an "off" for a second or two. Normally this wouldn't matter, as there is nothing in the play queue. But if I put it to sleep when there is still a playlist, it starts to play. And so I woke up to a newly released but very old live recording of Ian and Sylvia, the excellently-recorded tunes wafting down the hallway from my office to the bedroom, where the dearly beloved was not amused.

I suppose the lesson is to clear any playlists or to turn the thing completely off. Anyone else have this experience?

I'm not sure it's possible to clear the playlist from the controls on the radio, and I wouldn't normally have access to SqueezeCntrl on my phone when I'm at the desk.

R.

Check your settings for power on resume in player settings/audio..

Sent from my Pixel 3a using Tapatalk

**Redrum** · 2020-02-11, 16:15

Originally posted by RonM

Anyone else have this experience?

R.

I have, and it happens, say 2-3 times a year. Only with radio, never with boom. Touch and receivers - not sure because they may come on, but without the amp on. I have walked up on a touch screen in "now playing" as opposed to "off" and not thought much of it, but it could have popped on similarly.

I have a radio in my office on my first floor, and I'll wake up in bed on the second floor, and it sounds like there is someone in the house. The first time it freaked me, but now I know what it is

. I also think I have walked in the office during the day and found the radio playing, so it's probably not just at night.

I think it's well documented here in the forum, I remember reading about it somewhere...my guess would be some sort of network event, or, even something goofy in the IR receiver circuit/code.

Jim

**T-bird** · 2020-02-12, 20:10

They do an spontaneous reboot, I seen it on both my Touch and Radio and to me it happens 4-5 a year and they done so since they where new so almost 10 now

**Steevee28** · 2020-02-25, 09:07

Suspect Timer overflow as reason

Hi,

I also experience "random" reboots of my Radios and my Touch several times a year.

After having a close look to that for several month, these reboots aren't that much random, instead they happen in a constant-time interval (about once per month) and they happen simultaneously if they were initally started at the same time.

So I suspect the reason for that being a timer overflow causing a (watchdog?) reset of the devices. As an example, a 32bit timer running at 1000Hz overflows once each 49.7 days.

Can anybody confirm this?

**ralphy** · 2020-02-25, 13:46

The touch and radio watchdog timer will reboot the units if the squeezeplay process crashes.

The watchdog timer also restarts the radio if the microcontroller monitor process dies.

**Steevee28** · 2020-02-25, 14:12

Suspect Timer overflow as reason

Yes.
I haven't looked through the code yet, but I guess that some event no longer occurs because of a wrapping timer / timer overflow and as a consequence, the watchdog resets the device.

Just as an illustration:

such buggy code could look like this:

Code:

...
static uint32_t timestamp_of_next_event = 0;
...
if ( getCurrentTimerValue() >= timestamp_of_next_event )
{
    ...trigger_some_event...;
    timestamp_of_next_event += 1000;
}

note that in this code, the event will no longer be triggered when the uint32 timer value wraps from 0xffffffff to 0x0.

one simple way to fix such code would be:

Code:

...
static uint32_t timestamp_of_next_event = 0;
...

if ( (int32_t)( getCurrentTimerValue() - timestamp_of_next_event ) >= 0 )
{
    ...trigger_some_event...;
    timestamp_of_next_event += 1000;
}

note the important explicit type cast to (signed) int32_t type in order to cast the unsigned difference of the timer value and timestamp_of_next_event to its signed value before checking whether the result is positive.

(I'm sorry for writing the example code in C. I am neither able to code in Perl nor in Lua.)

**mrw** · 2020-02-25, 21:46

Originally posted by Steevee28

Can anybody confirm this?

No.

I have two Radios permanently on, for many years, and have never knowingly experienced this.

'Spontaneous' reboots ? Yes, very occasionally, but not obviously correlated.

**Steevee28** · 2020-02-25, 22:46

Originally posted by mrw

... permanently on...

'Permanently on' means connected to power, but in standby/idle, ie. The Radio showing the clock?
I'm asking this, becaue the reboots will leave the Radio in "on state", ie. showing the Main Menu.

Which device firmware versions do you have?

Originally posted by mrw

...but not obviously correlated...

For the reboots being obviously correclated, both Radios need to be initially turned on at the same point of time, of course.

**Redrum** · 2020-02-25, 22:58

my radios are always connected to power, remain "off" (show clock screen saver) when not playing, and I have experienced the popping "on" (start playing a radio station, presumably the one in the playlist). Like I mentioned, this might also have happened with my touches, but since the amp is off, I don't notice it (audibly). I have walked up and seen the "now playing" screen, but not known if it occurred spontaneously, or a sloppy shut down on my part (I use a IR via a universal remote on my main systems).

picore servers, always connected to power and running.

The radios have started playing, unprovoked, maybe 1-4 times a year. My experience. YMMV. It's not a big deal to me, it's "character"

now that I know it's not people in my house in the middle of the night....

Jim

**Steevee28** · 2020-02-25, 23:09

Originally posted by Redrum

...Like I mentioned, this might also have happened with my touches, but since the amp is off, I don't notice it (audibly)...

We both definitely share the same experiences, but I can confirm that this is both happening to the Radios and my Touch at the same time.
I should also emphasise that I disconnect all the devices from power when we are on holidays and reconnect them when we're back. So my devices are restarted after AC power loss at the same time.
This is surely the reason why those spontaneous reboots are in-sync on my devices.

**mherger** · 2020-02-26, 05:57

Spontaneous turning-on

> We both definitely share the same experiences, but I *can* confirm that
> this is both happening to the Radios *and* my Touch at the same time.

FWIW: I have a Touch connected to an amp which is always on, Radios
which stay on for months (mostly in soft off at night), others which are
powered off, or in paused mode. And they have been used this way for
years. I can't remember a single spontanous playback (except after my
kids started playing with the alarm clock - check this if you haven't
yet :-)).

What I know can lead to reboots is some screensavers. In particular the
image viewer can cause the Radio to run out of memory. If you're using
this, then try to use the clock instead and see whether this helps.

--

Michael

**sebp** · 2020-02-26, 06:58

Yes, it happens from time to time with my Radio too (and only with my Radio).
I will leave home in the morning with the unit powered off, displaying the clock, and come back in the evening with the unit playing music in the bathroom.
I'm also pretty sure it's related to the Radio rebooting for some reason, but I never was able to reproduce the issue by unplugging it from the wall socket.

Kind of remind me an old issue there was with LMS where the unit would pick a wrong playlist after a server restart (I think.)
It's been fixed for a long time though, and is probably totally unrelated to this random problem.

**mrw** · 2020-02-26, 09:39

Originally posted by Steevee28

'Permanently on' means connected to power, but in standby/idle, ie. The Radio showing the clock?
I'm asking this, becaue the reboots will leave the Radio in "on state", ie. showing the Main Menu.

Which device firmware versions do you have?

Yes, I have them idle, showing a clock.

I would imagine that, if they did reboot, they would go back into the same state...

Latest firmware, which for the Radio is 7.7.3. Note that a Touch would be 7.8.0, and there were some changes to the Alarm applet between 7.7.3 and 7.8.0.

For the reboots being obviously correclated, both Radios need to be initially turned on at the same point of time, of course.

Good point.

Spontaneous turning-on

Spontaneous turning-on

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