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Old 01-09-2008, 07:41 AM
Terry Pinnell
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2210 backlight brightness control?

I set my iPAQ 2210 so that it would "Turn off backlight if device is
not used for" 1 min. But it only *dims* it, not turn it off
completely.

If that is correct behaviour, why? I don't need to be able to see
anything until I tap the screen or use a key, when Full brightness
will be restored anyway.

Is there no way to turn it off altogether, so that battery life is
maximised?

--
Terry, East Grinstead, UK
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Old 01-09-2008, 07:41 AM
  #2 (permalink)  
Old 01-09-2008, 10:10 AM
Keith R
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Re: 2210 backlight brightness control?

I believe that what you are describing is a condition in which the backlight
/is/ turned off, but the screen content is still visible in reflected light.
My impression is that the backlight is the big power hog, so what you are
describing is the desired effect. Perhaps some of the more technical group
members could comment on how much power is used just to keep the screen
"populated" as compared to having the backlight on- my guess is that the
power drain is negligible.

If you desire a completely blank screen (the same condition as when you push
the 'power' button in the upper right corner), you can change settings/power
to turn off the device if it is not used for more than x minutes... but
you'll have to test to see if that interferes with a program you are running
(mp3 player, etc.) or if your active programs (mp3 player, etc) make the
device think it is active, preventing a powerdown.

HTH,
Keith

"Terry Pinnell" <terrypinDELETE@THESEdial.pipex.com> wrote in message
news:3rp9o3ddv1fnqj4de8kj6gukbm3rmr8qbh@4ax.com...
>I set my iPAQ 2210 so that it would "Turn off backlight if device is
> not used for" 1 min. But it only *dims* it, not turn it off
> completely.
>
> If that is correct behaviour, why? I don't need to be able to see
> anything until I tap the screen or use a key, when Full brightness
> will be restored anyway.
>
> Is there no way to turn it off altogether, so that battery life is
> maximised?
>
> --
> Terry, East Grinstead, UK



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  #3 (permalink)  
Old 01-10-2008, 03:30 AM
Terry Pinnell
Newsgroup Contributor
 
Posts: n/a
Re: 2210 backlight brightness control?

"Keith R" <ker_01@newsgroup.nospam> wrote:

>I believe that what you are describing is a condition in which the backlight
>/is/ turned off, but the screen content is still visible in reflected light.
>My impression is that the backlight is the big power hog, so what you are
>describing is the desired effect. Perhaps some of the more technical group
>members could comment on how much power is used just to keep the screen
>"populated" as compared to having the backlight on- my guess is that the
>power drain is negligible.
>
>If you desire a completely blank screen (the same condition as when you push
>the 'power' button in the upper right corner), you can change settings/power
>to turn off the device if it is not used for more than x minutes... but
>you'll have to test to see if that interferes with a program you are running
>(mp3 player, etc.) or if your active programs (mp3 player, etc) make the
>device think it is active, preventing a powerdown.
>
>HTH,
>Keith
>
>"Terry Pinnell" <terrypinDELETE@THESEdial.pipex.com> wrote in message
>news:3rp9o3ddv1fnqj4de8kj6gukbm3rmr8qbh@4ax.com.. .
>>I set my iPAQ 2210 so that it would "Turn off backlight if device is
>> not used for" 1 min. But it only *dims* it, not turn it off
>> completely.
>>
>> If that is correct behaviour, why? I don't need to be able to see
>> anything until I tap the screen or use a key, when Full brightness
>> will be restored anyway.
>>
>> Is there no way to turn it off altogether, so that battery life is
>> maximised?
>>
>> --
>> Terry, East Grinstead, UK

>


Thanks Keith, that's reassuring.

The application is that I'm using the PPC with a map program
(Memory-Map) and my GPS unit. So most of the time the PPC is in my
pocket, but obviously cannot be switched off because it's keeping
track of my position. That's via Bluetooth, (the only time I've ever
used the facility), which I suppose itself has high consumption ;-(

--
Terry, East Grinstead, UK



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