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strange "spontaneous" system wake ups

Message #1 - Posted 2004/07/13 - leo

hi there

i experience strange system wake ups of my mac os x 10.3 system on a flatpanel iMac:

at night i put the computer to sleep, but _sometimes the system spontaneously wakes up in the middle of the night.
i thought the ethernet/broadband connection might cause it but i think it happens as well without ethernet plugged in...
the other cause could be the wireless apple keyboard, however in the appropriate preferences i left the box " bluetooth is allowed to wake up" un-ticked.

do other people have similar experiences? and what can i do to avoid this annoyance?

thanks, leo

Message #2 - Posted 2004/07/13 - Chris Moore

Previously, leo wrote:

hi there

i experience strange system wake ups of my mac os x 10.3 system on a flatpanel iMac:

at night i put the computer to sleep, but _sometimes the system spontaneously wakes up in the middle of the night.
i thought the ethernet/broadband connection might cause it but i think it happens as well without ethernet plugged in...
the other cause could be the wireless apple keyboard, however in the appropriate preferences i left the box " bluetooth is allowed to wake up" un-ticked.

do other people have similar experiences? and what can i do to avoid this annoyance?

thanks, leo

CRON tasks maybe? Daily are at 3:15 am, weekly are Saturdays at 4:30 am, and monthly are on the 1st at 5:30 am.

Message #3 - Posted 2004/07/13 - Tom Stiller

Previously, Chris Moore wrote:

Previously, leo wrote:

hi there

i experience strange system wake ups of my mac os x 10.3 system on a flatpanel iMac:

at night i put the computer to sleep, but _sometimes the system spontaneously wakes up in the middle of the night.
i thought the ethernet/broadband connection might cause it but i think it happens as well without ethernet plugged in...
the other cause could be the wireless apple keyboard, however in the appropriate preferences i left the box " bluetooth is allowed to wake up" un-ticked.

do other people have similar experiences? and what can i do to avoid this annoyance?

thanks, leo

CRON tasks maybe? Daily are at 3:15 am, weekly are Saturdays at 4:30 am, and monthly are on the 1st at 5:30 am.

The cron task is dormant when the processor sleeps so none of its tasks will execute.

There are 10 kinds of people in the world:
those who understand binary, and those who don't.

Tom Stiller

PGP fingerprint = 5108 DDB2 9761 EDE5 E7E3
7BDA 71ED 6496 99C0 C7CF

Message #4 - Posted 2004/07/13 - Gnarlodious

Entity leo spoke thus:

wireless apple keyboard

I don't know what that is, but it could be the culprit. Wireless USB tranceivers have a habit of waking up the OS in general. I had a Macally wireless keyboard that woke up the OS randomly and just couldn't use it.

-- Gnarlie
Tubal Litigation: Suing because of a misconception

Message #5 - Posted 2004/07/13 - Madwen

Previously, leo wrote:

hi there

i experience strange system wake ups of my mac os x 10.3 system on a flatpanel iMac:

at night i put the computer to sleep, but _sometimes the system spontaneously wakes up in the middle of the night.
i thought the ethernet/broadband connection might cause it but i think it happens as well without ethernet plugged in...
the other cause could be the wireless apple keyboard, however in the appropriate preferences i left the box " bluetooth is allowed to wake up" un-ticked.

do other people have similar experiences? and what can i do to avoid this annoyance?

thanks, leo

I have seen this several times in the last few months. The only wireless device I have is Airport.

Message #6 - Posted 2004/07/13 - Alice Faber

Previously, leo wrote:

hi there

i experience strange system wake ups of my mac os x 10.3 system on a flatpanel iMac:

at night i put the computer to sleep, but _sometimes the system spontaneously wakes up in the middle of the night.
i thought the ethernet/broadband connection might cause it but i think it happens as well without ethernet plugged in...
the other cause could be the wireless apple keyboard, however in the appropriate preferences i left the box " bluetooth is allowed to wake up" un-ticked.

do other people have similar experiences? and what can i do to avoid this annoyance?

My iMac (old-style fruit colored) running 10.3.4 wakes up when I turn on the lamp on the desk, even if I'm *very* careful not to jiggle *anything* on the desk. I view it as one of the mysteries of the universe.

AF

Message #7 - Posted 2004/07/13 - Jacky

at night i put the computer to sleep, but _sometimes the system spontaneously wakes up in the middle of the night.

It could be (at least it happenned to me) that you have checked the wake on incoming call in the Fax preference and it so does when your phone rings. I am a bit puzzled because it happens in the middle of the night so I presume you would hear the phone ring, unless you have a dedicated phone line to your Mac modem...

My iMac (old-style fruit colored) running 10.3.4 wakes up when I turn on the lamp on the desk, even if I'm *very* careful not to jiggle *anything* on the desk. I view it as one of the mysteries of the universe.

So does mine which is an 15" flat panel and it DEFINITELY is a mistery of the universe. It did so with Jaguar and Panther.

Message #8 - Posted 2004/07/13 - clvrmnky

On 13/07/2004 10:38 AM, Alice Faber wrote:

Previously, leo wrote:

hi there

i experience strange system wake ups of my mac os x 10.3 system on a flatpanel iMac:

at night i put the computer to sleep, but _sometimes the system spontaneously wakes up in the middle of the night.
i thought the ethernet/broadband connection might cause it but i think it happens as well without ethernet plugged in...
the other cause could be the wireless apple keyboard, however in the appropriate preferences i left the box " bluetooth is allowed to wake up" un-ticked.

do other people have similar experiences? and what can i do to avoid this annoyance?

My iMac (old-style fruit colored) running 10.3.4 wakes up when I turn on the lamp on the desk, even if I'm *very* careful not to jiggle *anything* on the desk. I view it as one of the mysteries of the universe.

Does this model (or Macs in general) have a light-sensor on the case somewhere so that it can adjust the screen brightness and contrast based on ambient light?

Message #9 - Posted 2004/07/13 - Jonathan Hendry

On 2004-07-13 09:30:50 -0400, Gnarlodious said:

Entity leo spoke thus:

wireless apple keyboard

I don't know what that is, but it could be the culprit. Wireless USB tranceivers have a habit of waking up the OS in general. I had a Macally wireless keyboard that woke up the OS randomly and just couldn't use it.

It happens to me with my G4, and I don't have any wireless peripherals attached.

It happens less now than it used to.

Message #10 - Posted 2004/07/14 - leo

well, fromall thye post i can sum up that this seems to be a standing issue.

does anybody know some web resource about this? maybe even from apple? ;-)

thanks, leo

"leo" <halloleo@noospaam.myrealbox.com> wrote in message news:ccvu3a$1s9c$1@otis.netspace.net.au...

hi there

i experience strange system wake ups of my mac os x 10.3 system on a flatpanel iMac:

at night i put the computer to sleep, but _sometimes the system spontaneously wakes up in the middle of the night.
i thought the ethernet/broadband connection might cause it but i think it happens as well without ethernet plugged in...
the other cause could be the wireless apple keyboard, however in the appropriate preferences i left the box " bluetooth is allowed to wake up" un-ticked.

do other people have similar experiences? and what can i do to avoid this annoyance?

thanks, leo

Message #11 - Posted 2004/07/14 - Martin Jørgensen

leo wrote:
-snip-

do other people have similar experiences? and what can i do to avoid this annoyance?

I think it could be some of your USB-devices. My 12" PB allways wakes up from sleep, when I insert my USB-mouse - annoying, but I can live with that.

So, perhaps you have an USB-device that sends a signal that makes your computer wake up?

Best regards,
Martin J¯rgensen

-- --------------------------------------------------------------------------- Home of Martin J¯rgensen - http://www.martinjoergensen.dk

Message #12 - Posted 2004/07/14 - Matthew Russotto

Previously, clvrmnky wrote:

My iMac (old-style fruit colored) running 10.3.4 wakes up when I turn on the lamp on the desk, even if I'm *very* careful not to jiggle *anything* on the desk. I view it as one of the mysteries of the universe.

Does this model (or Macs in general) have a light-sensor on the case somewhere so that it can adjust the screen brightness and contrast based on ambient light?

Nope. I think this is probably a case of electrical transients fooling the machine into thinking there's USB activity.

Either that or the poster has an optical mouse.

Message #13 - Posted 2004/07/14 - Alice Faber

Previously, Matthew Russotto wrote:

Previously, clvrmnky wrote:

My iMac (old-style fruit colored) running 10.3.4 wakes up when I turn on the lamp on the desk, even if I'm *very* careful not to jiggle *anything* on the desk. I view it as one of the mysteries of the universe.

Does this model (or Macs in general) have a light-sensor on the case somewhere so that it can adjust the screen brightness and contrast based on ambient light?

Nope. I think this is probably a case of electrical transients fooling the machine into thinking there's USB activity.

Either that or the poster has an optical mouse.

I do, and that was my first hypothesis, but the light isn't anywhere near the mouse, and turning on the lamp across the room (that's on a different circuit) doesn't wake the computer.

AF

Message #14 - Posted 2004/07/14 - George Williams

Alice Faber wrote:

Either that or the poster has an optical mouse.

I do, and that was my first hypothesis, but the light isn't anywhere near the mouse, and turning on the lamp across the room (that's on a different circuit) doesn't wake the computer.

It might be so sensitive that a door slamming or a heavy step on an unstable floor could do it. E.g. if it only happens when you are there to observe (and cause) it.

Message #15 - Posted 2004/07/14 - Alice Faber

Previously, George Williams wrote:

Alice Faber wrote:

Either that or the poster has an optical mouse.

I do, and that was my first hypothesis, but the light isn't anywhere near the mouse, and turning on the lamp across the room (that's on a different circuit) doesn't wake the computer.

It might be so sensitive that a door slamming or a heavy step on an unstable floor could do it. E.g. if it only happens when you are there to observe (and cause) it.

I can walk into the room and grab something from the desk (like my cell phone), but the computer only wakes up if I turn on the desk lamp, and not always then.

AF

Message #16 - Posted 2004/07/14 - George Williams

Alice Faber wrote:

I can walk into the room and grab something from the desk (like my cell phone), but the computer only wakes up if I turn on the desk lamp, and not always then.

That's it, then. The lamp emits a spike of infra-red of the wavelength which the mouse's phototransistor detects, or perhaps the lamp emits some kind of RF interference (if fluorescent) that is picked up by the mouse cable.

Message #17 - Posted 2004/07/14 - Gnarlodious

I have a flat panel like the OP, but I ended up removing the capacitive switch. Turns out it was too sensitive for my situation, getting set off by my ham radios or cellphone or even a stray bug attracted to the light.

The Cube however did not suffer the same sensitivity, encased in steel as it is. The capacitive switch was exactly the same piece on both machines but the LCD mount put it right at the front with no shielding.

I cave the spare switches to a guy who is building a robot, he wanted some for the robot's eyes.

-- Gnarlie ï
http://Gnarlodious.com/Entities/Computer/Cube/Cube.html

Message #18 - Posted 2004/07/14 - Nick Landsberg

George Williams wrote:

Alice Faber wrote:

Either that or the poster has an optical mouse.

I do, and that was my first hypothesis, but the light isn't anywhere near the mouse, and turning on the lamp across the room (that's on a different circuit) doesn't wake the computer.

It might be so sensitive that a door slamming or a heavy step on an unstable floor could do it. E.g. if it only happens when you are there to observe (and cause) it.

Somewhat off-topic and tongue-in-cheek:

I have a neighbor some 1/4 mile away who keeps
chickens. Over the course of the last 3 weeks
I have been awakened at 5 AM by the rooster who has
decided that my back yard is his favorite
place to be noisy. If *I* get awakened by
that damned bird, why shouldn't my computer
get awakened by the same damned bird???!!!??? :)

(Note that the damned bird is *this >||< close* to becoming dinner at this point. Fricasee? Cacciatore? Just
plain old down-home breaded & fried? Any suggestions welcome!)

NPL

"It is impossible to make anything foolproof
because fools are so ingenious"
- A. Bloch

Message #19 - Posted 2004/07/14 - George Williams

Nick Landsberg wrote:

(Note that the damned bird is *this >||< close* to becoming dinner at this point. Fricasee? Cacciatore? Just
plain old down-home breaded & fried? Any suggestions welcome!)

They aren't very tasty, but one can set up one of those humane traps (raccoon-size), baited with popcorn, put
it on the fence or near the rooster's perch. It just might get caught.

Message #20 - Posted 2004/07/15 - Paul Sture

Nick Landsberg wrote:

George Williams wrote:

Alice Faber wrote:

Either that or the poster has an optical mouse.

I do, and that was my first hypothesis, but the light isn't anywhere near the mouse, and turning on the lamp across the room (that's on a different circuit) doesn't wake the computer.

It might be so sensitive that a door slamming or a heavy step on an unstable floor could do it. E.g. if it only happens when you are there to observe (and cause) it.

Somewhat off-topic and tongue-in-cheek:

I have a neighbor some 1/4 mile away who keeps
chickens. Over the course of the last 3 weeks
I have been awakened at 5 AM by the rooster who has
decided that my back yard is his favorite
place to be noisy. If *I* get awakened by
that damned bird, why shouldn't my computer
get awakened by the same damned bird???!!!??? :)

(Note that the damned bird is *this >||< close* to becoming dinner at this point. Fricasee? Cacciatore? Just
plain old down-home breaded & fried? Any suggestions welcome!)

LOL! I am reliably informed that a catapult can be used with effect in these situations. ;-)

Message #21 - Posted 2004/07/15 - Matthew Russotto

Previously, Nick Landsberg wrote:

I have a neighbor some 1/4 mile away who keeps
chickens. Over the course of the last 3 weeks
I have been awakened at 5 AM by the rooster who has
decided that my back yard is his favorite
place to be noisy. If *I* get awakened by
that damned bird, why shouldn't my computer
get awakened by the same damned bird???!!!??? :)

(Note that the damned bird is *this >||< close* to becoming dinner at this point. Fricasee? Cacciatore? Just
plain old down-home breaded & fried? Any suggestions welcome!)

Those are all young-chicken recipes. The old cock should probably be stewed.

Message #22 - Posted 2004/07/16 - leo

"Gnarlodious" <gnarlodiousNULL@VOID.invalid.yahoo.com> wrote in message news:BD1B0440.5199A%gnarlodiousNULL@VOID.invalid.yahoo.com...

I have a flat panel like the OP, but I ended up removing the capacitive switch. Turns out it was too sensitive for my situation, getting set off

by

my ham radios or cellphone or even a stray bug attracted to the light.

what is the capacitive switch at the iMac? on mine is only one push button to switch the machine on and of...

cheers, leo

Message #23 - Posted 2004/07/16 - leo

"Martin J¯rgensen" <unoder.spam@spam.jay.net> wrote in message news:40f5174d$0$178$edfadb0f@dread11.news.tele.dk...

leo wrote:
-snip-

do other people have similar experiences? and what can i do to avoid

this

annoyance?

I think it could be some of your USB-devices. My 12" PB allways wakes up from sleep, when I insert my USB-mouse - annoying, but I can live with

that.

So, perhaps you have an USB-device that sends a signal that makes your computer wake up?

well, it does not happen _all_ the time only sometimes. (maybe one night per week?)

cheers, leo

Message #24 - Posted 2004/07/18 - JonesR

<< It might be so sensitive that a door slamming or a heavy step on an unstable floor could do it. E.g. if it only happens when you are there to observe (and cause) it. >><BR><BR>

Generally what 'wakes' my mac from screensaver land,can be the slightest tremor of someone walking across the room or similar, nudging the optical mouse the slightest bit.

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