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[Lcdproc] How to turn off backlight of iMON-LCD at shutdown


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  • From: bengt.nilsson11 at spray.se (Bengt Nilsson)
  • Subject: [Lcdproc] How to turn off backlight of iMON-LCD at shutdown
  • Date: Sun, 27 Feb 2011 12:41:12 +0100

Hi,

Sorry, I forgot to mention I installed the Soundgraph software to the Win7.
"Windows" would not care to do anything about this, I suppose.


27 feb 2011 kl. 12.26 skrev Bengt Nilsson:

> Hi,
>
> Seems to me most agree it's a hardware problem.
>
> Why then, is it possible for Windows to shut down the backlight of the
> display when powered off?
> (For the picky, Powered off=By Start menu, not power switch or pulling the
> cable)
>
> I have a test partition with Win7 used for my Harmony remote control
> programming, etc.
>
> 22 feb 2011 kl. 00.03 skrev Dave Liquorice:
>
>> On Tue, 22 Feb 2011 08:39:35 +1000, Paul Hunt wrote:
>>
>> Only to me and not the list, unless it's taking a while to get through the
>> list...
>>
>>>>> The iMon displays are hooked into the cable bundle for the motherboard
>>>>> to get their juice. So yes, they are getting their power from the low
>>>>> power rails which are powered even if the PSU is not active
>>>>>
>>>> So it's a hardware problem not a software one. B-)
>> <snip>
>>>> Simple solution is to move where the display gets it's power from. Shift
>>>> it from pin 9 (purple wire, +5vsb) to one of the red wires (+5v) in pin
>>>> 4
>>>> or 6.
>>>
>>> You need to use the +5 V standby supply if you wish to use the remote
>>> power on feature.
>>
>> Does the OP require that feature? If not it's the simple solution.
>>
>> Even if he does it's still a hardware problem, just feed the backlight
>> from
>> the normal +5v and the electronics from the +5vsb.
>>
>>> It _is_ necessary do to run lcdproc to turn off the backlight, but it
>>> stays off after power down or suspend-to-ram.
>>
>> Unless there is a mains power glitch... ie the display gets reset.
>> Software
>> solutions are just bodges to work around a hardware problem.
>>
>> --
>> Cheers
>> Dave.
>>
>>
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>
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