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MacBook Pro (MBP) rebooted when its desk got slammed hard?

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  MacBook Pro (MBP) rebooted when its desk got slammed hard?  ant@zimage.comANT (Ant) - 2020-07-13 15:50 -0500
    Re: MacBook Pro (MBP) rebooted when its desk got slammed hard? Jolly Roger <jollyroger@pobox.com> - 2020-07-13 21:12 +0000
    Re: MacBook Pro (MBP) rebooted when its desk got slammed hard? Lewis <g.kreme@gmail.com.dontsendmecopies> - 2020-07-13 23:20 +0000
      Re: MacBook Pro (MBP) rebooted when its desk got slammed hard? ant@zimage.comANT (Ant) - 2020-07-15 00:28 -0500
        Re: MacBook Pro (MBP) rebooted when its desk got slammed hard? Your Name <YourName@YourISP.com> - 2020-07-15 18:15 +1200
          Re: MacBook Pro (MBP) rebooted when its desk got slammed hard? ant@zimage.comANT (Ant) - 2020-07-15 03:07 -0500
            Re: MacBook Pro (MBP) rebooted when its desk got slammed hard? Lewis <g.kreme@gmail.com.dontsendmecopies> - 2020-07-15 08:53 +0000
              Re: MacBook Pro (MBP) rebooted when its desk got slammed hard? ant@zimage.comANT (Ant) - 2020-07-15 21:41 -0500
                Re: MacBook Pro (MBP) rebooted when its desk got slammed hard? Lewis <g.kreme@gmail.com.dontsendmecopies> - 2020-07-16 04:00 +0000
            Re: MacBook Pro (MBP) rebooted when its desk got slammed hard? Your Name <YourName@YourISP.com> - 2020-07-16 08:32 +1200
              Re: MacBook Pro (MBP) rebooted when its desk got slammed hard? ant@zimage.comANT (Ant) - 2020-07-15 21:43 -0500
                Re: MacBook Pro (MBP) rebooted when its desk got slammed hard? Your Name <YourName@YourISP.com> - 2020-07-16 15:05 +1200
                  Re: MacBook Pro (MBP) rebooted when its desk got slammed hard? ant@zimage.comANT (Ant) - 2020-07-15 22:14 -0500
                    Re: MacBook Pro (MBP) rebooted when its desk got slammed hard? Your Name <YourName@YourISP.com> - 2020-07-16 19:24 +1200
                      Re: MacBook Pro (MBP) rebooted when its desk got slammed hard? nospam <nospam@nospam.invalid> - 2020-07-16 10:22 -0400
        Re: MacBook Pro (MBP) rebooted when its desk got slammed hard? Lewis <g.kreme@gmail.com.dontsendmecopies> - 2020-07-15 08:51 +0000

#133481 — MacBook Pro (MBP) rebooted when its desk got slammed hard?

Hello.

Earlier, the desk got slammed hard and 2012 13.3" MBP, with its updated mac 
OS v10.14.6, rebooted back to its SSD unlock screen and had to log in 
manually. Nothing was lost so far and even Firefox v78.0.1 still remember 
its logged web site login. MBP was connected with its magnetic power AC and 
still has its original battery with almost 100% juice. Weird/Odd! :/

Thank you for reading and hopefully answering. :)
-- 
Life's so loco! ..!.. *isms, sins, hates, (d)evil, illnesses (e.g., COVID-19/2019-nCoV/SARS-CoV-2), deaths (RIP), heat waves, fires, out(r)ages, dramas, unlucky #4, 2020, greeds, bugs (e.g., crashes & female mosquitoes), etc.
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#133483

On 2020-07-13, Ant <ant@zimage.comANT> wrote:
> Hello.
>
> Earlier, the desk got slammed hard and 2012 13.3" MBP, with its
> updated mac OS v10.14.6, rebooted back to its SSD unlock screen and
> had to log in manually. Nothing was lost so far and even Firefox
> v78.0.1 still remember its logged web site login. MBP was connected
> with its magnetic power AC and still has its original battery with
> almost 100% juice. Weird/Odd! :/
>
> Thank you for reading and hopefully answering. :)

If the internal storage is a hard drive as opposed to an SSD, then
there's nothing weird or odd about it. Physical shocks should *always*
be avoided with hard drives, because the read/write head floats only a
few nanometers above the spinning platter, where even what we might
think is a /slight/ shock can send the head crashing into the platter
("Oh noz, my HD crashed!"). And the hard drive isn't the only sensitive
component in a computer, either. With a hard enough jolt, there are
other things that can go wrong. 

In general, you should follow this simple rule: be careful with your
expensive electronics if you care about them.

-- 
E-mail sent to this address may be devoured by my ravenous SPAM filter.
I often ignore posts from Google. Use a real news client instead.

JR

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#133504

In message <1pmdnVKLCIZgVZHCnZ2dnUU7-UednZ2d@earthlink.com> Ant <ant@zimage.comANT> wrote:
> Hello.

> Earlier, the desk got slammed hard and 2012 13.3" MBP, with its updated mac 
> OS v10.14.6, rebooted back to its SSD unlock screen and had to log in 
> manually. Nothing was lost so far and even Firefox v78.0.1 still remember 
> its logged web site login. MBP was connected with its magnetic power AC and 
> still has its original battery with almost 100% juice. Weird/Odd! :/

Not weird or odd at all. Mac Laptops have an accelerometer specifically
for this.

-- 
Bowling scores are way up, minigolf scores are way down, and we have
	more excellent waterslides than any other planet we communicate
	with

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#133556

In comp.sys.mac.portables Lewis <g.kreme@gmail.com.dontsendmecopies> wrote:
> In message <1pmdnVKLCIZgVZHCnZ2dnUU7-UednZ2d@earthlink.com> Ant <ant@zimage.comANT> wrote:
> > Hello.

> > Earlier, the desk got slammed hard and 2012 13.3" MBP, with its updated mac 
> > OS v10.14.6, rebooted back to its SSD unlock screen and had to log in 
> > manually. Nothing was lost so far and even Firefox v78.0.1 still remember 
> > its logged web site login. MBP was connected with its magnetic power AC and 
> > still has its original battery with almost 100% juice. Weird/Odd! :/

> Not weird or odd at all. Mac Laptops have an accelerometer specifically
> for this.

Wow. Are there more details about this?
-- 
Life's so loco! ..!.. *isms, sins, hates, (d)evil, illnesses (e.g., COVID-19/2019-nCoV/SARS-CoV-2), deaths (RIP), interruptions, stresses, heat waves, fires, out(r)ages, dramas, unlucky #4, 2020, greeds, bugs (e.g., crashes & female mosquitoes), etc.
Note: A fixed width font (Courier, Monospace, etc.) is required to see this signature correctly.
  /\___/\:( Ant(Dude) @ http://aqfl.net & http://antfarm.home.dhs.org /
 / /\ /\ \ http://antfarm.ma.cx. Please nuke ANT if replying by e-mail.
| |o   o| |
   \ _ /
    ( )

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#133557

On 2020-07-15 05:28:34 +0000, Ant said:
> In comp.sys.mac.portables Lewis <g.kreme@gmail.com.dontsendmecopies> wrote:
>> In message <1pmdnVKLCIZgVZHCnZ2dnUU7-UednZ2d@earthlink.com> Ant 
>> <ant@zimage.comANT> wrote:
>>> 
>>> Hello.
>>> 
>>> Earlier, the desk got slammed hard and 2012 13.3" MBP, with its updated 
>>> mac OS v10.14.6, rebooted back to its SSD unlock screen and had to log 
>>> in
>>> manually. Nothing was lost so far and even Firefox v78.0.1 still remember
>>> its logged web site login. MBP was connected with its magnetic power AC 
>>> and still has its original battery with almost 100% juice. Weird/Odd! :/
>> 
>> Not weird or odd at all. Mac Laptops have an accelerometer specifically
>> for this.
> 
> Wow. Are there more details about this?

Sudden Motion Sensor
<https://en.wikipedia.org/wiki/Sudden_Motion_Sensor>

I don't know that it's supposed to reboot. It's meant to park the heads 
on a hard drive so that there is less chance of the drive being damaged 
in a fall. Of course, it's pretty much useless with an SSD equiped Mac.

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#133560

In comp.sys.mac.portables Your Name <YourName@yourisp.com> wrote:
> On 2020-07-15 05:28:34 +0000, Ant said:
> > In comp.sys.mac.portables Lewis <g.kreme@gmail.com.dontsendmecopies> wrote:
> >> In message <1pmdnVKLCIZgVZHCnZ2dnUU7-UednZ2d@earthlink.com> Ant 
> >> <ant@zimage.comANT> wrote:
> >>> 
> >>> Hello.
> >>> 
> >>> Earlier, the desk got slammed hard and 2012 13.3" MBP, with its updated 
> >>> mac OS v10.14.6, rebooted back to its SSD unlock screen and had to log 
> >>> in
> >>> manually. Nothing was lost so far and even Firefox v78.0.1 still remember
> >>> its logged web site login. MBP was connected with its magnetic power AC 
> >>> and still has its original battery with almost 100% juice. Weird/Odd! :/
> >> 
> >> Not weird or odd at all. Mac Laptops have an accelerometer specifically
> >> for this.
> > 
> > Wow. Are there more details about this?

> Sudden Motion Sensor
> <https://en.wikipedia.org/wiki/Sudden_Motion_Sensor>

> I don't know that it's supposed to reboot. It's meant to park the heads 
> on a hard drive so that there is less chance of the drive being damaged 
> in a fall. Of course, it's pretty much useless with an SSD equiped Mac.

Thanks and interesting. Yeah, it did reboot. It was just a hard slam/hit on the desk 
(not a drop). :(

-- 
Life's so loco! ..!.. *isms, sins, hates, (d)evil, illnesses (e.g., COVID-19/2019-nCoV/SARS-CoV-2), deaths (RIP), interruptions, stresses, heat waves, fires, out(r)ages, dramas, unlucky #4, 2020, greeds, bugs (e.g., crashes & female mosquitoes), etc.
Note: A fixed width font (Courier, Monospace, etc.) is required to see this signature correctly.
  /\___/\:( Ant(Dude) @ http://aqfl.net & http://antfarm.home.dhs.org /
 / /\ /\ \ http://antfarm.ma.cx. Please nuke ANT if replying by e-mail.
| |o   o| |
   \ _ /
    ( )

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#133562

In message <8pCdnbv4UtDfJJPCnZ2dnUU7-e-dnZ2d@earthlink.com> Ant <ant@zimage.comANT> wrote:
> In comp.sys.mac.portables Your Name <YourName@yourisp.com> wrote:
>> On 2020-07-15 05:28:34 +0000, Ant said:
>> > In comp.sys.mac.portables Lewis <g.kreme@gmail.com.dontsendmecopies> wrote:
>> >> In message <1pmdnVKLCIZgVZHCnZ2dnUU7-UednZ2d@earthlink.com> Ant 
>> >> <ant@zimage.comANT> wrote:
>> >>> 
>> >>> Hello.
>> >>> 
>> >>> Earlier, the desk got slammed hard and 2012 13.3" MBP, with its updated 
>> >>> mac OS v10.14.6, rebooted back to its SSD unlock screen and had to log 
>> >>> in
>> >>> manually. Nothing was lost so far and even Firefox v78.0.1 still remember
>> >>> its logged web site login. MBP was connected with its magnetic power AC 
>> >>> and still has its original battery with almost 100% juice. Weird/Odd! :/
>> >> 
>> >> Not weird or odd at all. Mac Laptops have an accelerometer specifically
>> >> for this.
>> > 
>> > Wow. Are there more details about this?

>> Sudden Motion Sensor
>> <https://en.wikipedia.org/wiki/Sudden_Motion_Sensor>

>> I don't know that it's supposed to reboot. It's meant to park the heads 
>> on a hard drive so that there is less chance of the drive being damaged 
>> in a fall. Of course, it's pretty much useless with an SSD equiped Mac.

> Thanks and interesting. Yeah, it did reboot. It was just a hard slam/hit on the desk 

It was enough of a shoc that the system took the steps to protect the
drive and the data.

> (not a drop). :(

No, not a sad face emoticon at all. The correct reaction is "Whew!"


-- 
"Are you pondering what I'm pondering?"
"Oooh, I think so Brain, but I think I'd rather eat the Macarena."

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#133590

In comp.sys.mac.portables Lewis <g.kreme@gmail.com.dontsendmecopies> wrote:
...
> >> Sudden Motion Sensor
> >> <https://en.wikipedia.org/wiki/Sudden_Motion_Sensor>

> >> I don't know that it's supposed to reboot. It's meant to park the heads 
> >> on a hard drive so that there is less chance of the drive being damaged 
> >> in a fall. Of course, it's pretty much useless with an SSD equiped Mac.

> > Thanks and interesting. Yeah, it did reboot. It was just a hard slam/hit on the desk 

> It was enough of a shoc that the system took the steps to protect the
> drive and the data.

So, it still does that for SSDs too? I was surprised to see everything back even the logged 
Firefox v78.0.2 web site session.

> > (not a drop). :(

> No, not a sad face emoticon at all. The correct reaction is "Whew!"

:D
-- 
Life's so loco! ..!.. *isms, sins, hates, (d)evil, illnesses (e.g., COVID-19/2019-nCoV/SARS-CoV-2), deaths (RIP), interruptions, stresses, heat waves, fires, out(r)ages, dramas, unlucky #4, 2020, greeds, bugs (e.g., crashes & female mosquitoes), etc.
Note: A fixed width font (Courier, Monospace, etc.) is required to see this signature correctly.
  /\___/\:( Ant(Dude) @ http://aqfl.net & http://antfarm.home.dhs.org /
 / /\ /\ \ http://antfarm.ma.cx. Please nuke ANT if replying by e-mail.
| |o   o| |
   \ _ /
    ( )

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#133595

In message <87WdnX5obo_cI5LCnZ2dnUU7-eOdnZ2d@earthlink.com> Ant <ant@zimage.comANT> wrote:
> In comp.sys.mac.portables Lewis <g.kreme@gmail.com.dontsendmecopies> wrote:
> ...
>> >> Sudden Motion Sensor
>> >> <https://en.wikipedia.org/wiki/Sudden_Motion_Sensor>

>> >> I don't know that it's supposed to reboot. It's meant to park the heads 
>> >> on a hard drive so that there is less chance of the drive being damaged 
>> >> in a fall. Of course, it's pretty much useless with an SSD equiped Mac.

>> > Thanks and interesting. Yeah, it did reboot. It was just a hard slam/hit on the desk 

>> It was enough of a shoc that the system took the steps to protect the
>> drive and the data.

> So, it still does that for SSDs too? I was surprised to see everything back even the logged 
> Firefox v78.0.2 web site session.

You said a 2012 MBP, so that machine was designed for spinning hard
drives, though SSDs were an option.

As the wikipedia page states, it only exists in machines that support
hard drives (though the page says laptops, and I think that is not
accurate, but I may be misremembering.

-- 
I'm giving up eating chocolate for a month.
Correction: I'm giving up; eating chocolate for a month.

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#133583

On 2020-07-15 08:07:30 +0000, Ant said:

> In comp.sys.mac.portables Your Name <YourName@yourisp.com> wrote:
>> On 2020-07-15 05:28:34 +0000, Ant said:
>>> In comp.sys.mac.portables Lewis <g.kreme@gmail.com.dontsendmecopies> wrote:
>>>> In message <1pmdnVKLCIZgVZHCnZ2dnUU7-UednZ2d@earthlink.com> Ant
>>>> <ant@zimage.comANT> wrote:
>>>>> 
>>>>> Hello.
>>>>> 
>>>>> Earlier, the desk got slammed hard and 2012 13.3" MBP, with its updated
>>>>> mac OS v10.14.6, rebooted back to its SSD unlock screen and had to log
>>>>> in
>>>>> manually. Nothing was lost so far and even Firefox v78.0.1 still remember
>>>>> its logged web site login. MBP was connected with its magnetic power AC
>>>>> and still has its original battery with almost 100% juice. Weird/Odd! :/
>>>> 
>>>> Not weird or odd at all. Mac Laptops have an accelerometer specifically
>>>> for this.
>>> 
>>> Wow. Are there more details about this?
>> 
>> Sudden Motion Sensor
>> <https://en.wikipedia.org/wiki/Sudden_Motion_Sensor>
>> 
>> I don't know that it's supposed to reboot. It's meant to park the heads
>> on a hard drive so that there is less chance of the drive being damaged
>> in a fall. Of course, it's pretty much useless with an SSD equiped Mac.
> 
> Thanks and interesting. Yeah, it did reboot. It was just a hard 
> slam/hit on the desk (not a drop). :(

It detects sudden movement of any type, a fall or a hard knock, so that 
the drive heads can be parked safely (or at least safer).

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#133592

In comp.sys.mac.portables Your Name <YourName@yourisp.com> wrote:
...
> > Thanks and interesting. Yeah, it did reboot. It was just a hard 
> > slam/hit on the desk (not a drop). :(

> It detects sudden movement of any type, a fall or a hard knock, so that 
> the drive heads can be parked safely (or at least safer).

But SSDs don't have heads?
-- 
Life's so loco! ..!.. *isms, sins, hates, (d)evil, illnesses (e.g., COVID-19/2019-nCoV/SARS-CoV-2), deaths (RIP), interruptions, stresses, heat waves, fires, out(r)ages, dramas, unlucky #4, 2020, greeds, bugs (e.g., crashes & female mosquitoes), etc.
Note: A fixed width font (Courier, Monospace, etc.) is required to see this signature correctly.
  /\___/\:( Ant(Dude) @ http://aqfl.net & http://antfarm.home.dhs.org /
 / /\ /\ \ http://antfarm.ma.cx. Please nuke ANT if replying by e-mail.
| |o   o| |
   \ _ /
    ( )

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#133593

On 2020-07-16 02:43:10 +0000, Ant said:
> In comp.sys.mac.portables Your Name <YourName@yourisp.com> wrote:
> ...
>>> Thanks and interesting. Yeah, it did reboot. It was just a hard
>>> slam/hit on the desk (not a drop). :(
>> 
>> It detects sudden movement of any type, a fall or a hard knock, so that
>> the drive heads can be parked safely (or at least safer).
> 
> But SSDs don't have heads?

True, which why it's pointless on SSD-based Mac laptops. You can 
actually turn it off, but it's probably not even worth the effort.

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#133594

In comp.sys.mac.portables Your Name <YourName@yourisp.com> wrote:
> On 2020-07-16 02:43:10 +0000, Ant said:
> > In comp.sys.mac.portables Your Name <YourName@yourisp.com> wrote:
> > ...
> >>> Thanks and interesting. Yeah, it did reboot. It was just a hard
> >>> slam/hit on the desk (not a drop). :(
> >> 
> >> It detects sudden movement of any type, a fall or a hard knock, so that
> >> the drive heads can be parked safely (or at least safer).
> > 
> > But SSDs don't have heads?

> True, which why it's pointless on SSD-based Mac laptops. You can 
> actually turn it off, but it's probably not even worth the effort.

Yeah, something else could break from the sudden jolt, drop, etc. Might as well play safe!
-- 
Life's so loco! ..!.. *isms, sins, hates, (d)evil, illnesses (e.g., COVID-19/2019-nCoV/SARS-CoV-2), deaths (RIP), interruptions, stresses, heat waves, fires, out(r)ages, dramas, unlucky #4, 2020, greeds, bugs (e.g., crashes & female mosquitoes), etc.
Note: A fixed width font (Courier, Monospace, etc.) is required to see this signature correctly.
  /\___/\:( Ant(Dude) @ http://aqfl.net & http://antfarm.home.dhs.org /
 / /\ /\ \ http://antfarm.ma.cx. Please nuke ANT if replying by e-mail.
| |o   o| |
   \ _ /
    ( )

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#133599

On 2020-07-16 03:14:52 +0000, Ant said:
> In comp.sys.mac.portables Your Name <YourName@yourisp.com> wrote:
>> On 2020-07-16 02:43:10 +0000, Ant said:
>>> In comp.sys.mac.portables Your Name <YourName@yourisp.com> wrote:
>>> ...
>>>>> Thanks and interesting. Yeah, it did reboot. It was just a hard
>>>>> slam/hit on the desk (not a drop). :(
>>>> 
>>>> It detects sudden movement of any type, a fall or a hard knock, so that
>>>> the drive heads can be parked safely (or at least safer).
>>> 
>>> But SSDs don't have heads?
> 
>> True, which why it's pointless on SSD-based Mac laptops. You can
>> actually turn it off, but it's probably not even worth the effort.
> 
> Yeah, something else could break from the sudden jolt, drop, etc. Might 
> as well play safe!

There are no other moving parts, so there's nothing else the sensor can 
be used for. It is solely for hard drives (inlcuding Apple's Fusion 
drives). It's not possible to stop the screen getting cracked or hinges 
breaking, for example.

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#133604

In article <reovb3$17vg$1@gioia.aioe.org>, Your Name
<YourName@YourISP.com> wrote:

> There are no other moving parts, so there's nothing else the sensor can 
> be used for. It is solely for hard drives (inlcuding Apple's Fusion 
> drives). It's not possible to stop the screen getting cracked or hinges 
> breaking, for example.

not including fusion drives. 

the sudden motion sensor is in macbooks (and the older powerbooks and
ibooks), which do not come with fusion drives.

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#133561

In message <POmdnZbAI_KfCZPCnZ2dnUU7-XGdnZ2d@earthlink.com> Ant <ant@zimage.comANT> wrote:
> In comp.sys.mac.portables Lewis <g.kreme@gmail.com.dontsendmecopies> wrote:
>> In message <1pmdnVKLCIZgVZHCnZ2dnUU7-UednZ2d@earthlink.com> Ant <ant@zimage.comANT> wrote:
>> > Hello.

>> > Earlier, the desk got slammed hard and 2012 13.3" MBP, with its updated mac 
>> > OS v10.14.6, rebooted back to its SSD unlock screen and had to log in 
>> > manually. Nothing was lost so far and even Firefox v78.0.1 still remember 
>> > its logged web site login. MBP was connected with its magnetic power AC and 
>> > still has its original battery with almost 100% juice. Weird/Odd! :/

>> Not weird or odd at all. Mac Laptops have an accelerometer specifically
>> for this.

> Wow. Are there more details about this?

It was covered in either a product announcement for the aluminum MBP
unibody or a keynote many years ago (more than a decade)

You can look for "Sudden Motion Sensor" if you're curious.

-- 
You've never heard of the Millennium Falcon?

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