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Re: OS startup goals and steps

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"Rod Pemberton" <boo@fasdfrewar.cdm> wrote in message 
news:op.x1ww75aiyfako5@localhost...
> On Thu, 16 Jul 2015 05:32:36 -0400, James Harris 
> <james.harris.1@gmail.com> wrote:
>
>> OK. Someone may (unwisely? or because the monitor has died) unplug
>> one monitor and plug in another one while the OS is running [...]
>
> IMO, bad idea.  Very bad. :-(
>
> Even if it is working afterwards, it may fail later on,
> or may work but not work correctly.
>
> One damaged circuit can cause cascade failures in others.
> I.e., what typically happens to electronics after static
> electric shock or a power surge.  Circuit starts acting
> "wierd" then they fail or go up in smoke.
>
> *ONLY*  do this if your company could lose millions of
> dollars by turning off the machine after the monitor fails.
> Hot swapping parts should be left for emergencies, or in
> rare instances for electronic repair technicians who know
> what they're doing.
>
> USB is the only thing I'll hot-plug.
>
> If you seriously think you'll have a user, e.g., co-worker
> or child, that would do that, then I'd recommend screwing
> down the connector screws real tight and use some thread
> locker and/or epoxy.
>
> Otherwise, you risk all the time and money re-building a
> new computer.  As someone who has experienced too much
> electronics failure, both at home and as part of a past
> job, this is a small nightmare I'd willingly avoid.

Marvellously extreme view, Rod ... up in smoke, millions of dollars, and 
epoxy!

If anyone is seeking a more balanced view see

  https://en.wikipedia.org/wiki/VGA_connector

Besides, the point is moot from the viewpoint of an OS writer because, 
in the absence of epoxy ... ;-), the monitor could change whether it is 
a good idea or not, or even under safely controlled conditions via a KVM 
network, so there is value in having an OS check from time to time.

Microsoft have an API for things like this.

https://msdn.microsoft.com/en-us/library/windows/hardware/ff568431%28v=vs.85%29.aspx

James

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Thread

OS startup goals and steps "James Harris" <james.harris.1@gmail.com> - 2015-07-14 10:35 +0100
  Re: OS startup goals and steps "Rod Pemberton" <boo@fasdfrewar.cdm> - 2015-07-15 04:00 -0400
    Re: OS startup goals and steps "Rod Pemberton" <boo@fasdfrewar.cdm> - 2015-07-15 22:29 -0400
      Re: OS startup goals and steps "James Harris" <james.harris.1@gmail.com> - 2015-07-16 08:00 +0100
        Re: OS startup goals and steps "James Harris" <james.harris.1@gmail.com> - 2015-07-16 11:01 +0100
          Re: OS startup goals and steps "Rod Pemberton" <boo@fasdfrewar.cdm> - 2015-07-17 05:40 -0400
            Re: OS startup goals and steps "wolfgang kern" <nowhere@never.at> - 2015-07-17 17:58 +0200
        Re: OS startup goals and steps "Alexei A. Frounze" <alexfrunews@gmail.com> - 2015-07-16 03:24 -0700
  Re: OS startup goals and steps "James Harris" <james.harris.1@gmail.com> - 2015-07-16 10:32 +0100
    Re: OS startup goals and steps "wolfgang kern" <nowhere@never.at> - 2015-07-16 16:04 +0200
      Re: OS startup goals and steps "James Harris" <james.harris.1@gmail.com> - 2015-07-17 06:44 +0100
        Re: OS startup goals and steps "wolfgang kern" <nowhere@never.at> - 2015-07-17 17:50 +0200
    Re: OS startup goals and steps "Rod Pemberton" <boo@fasdfrewar.cdm> - 2015-07-17 06:10 -0400
      Re: OS startup goals and steps "James Harris" <james.harris.1@gmail.com> - 2015-07-17 18:07 +0100
        Re: OS startup goals and steps "Rod Pemberton" <boo@fasdfrewar.cdm> - 2015-07-18 03:35 -0400
  Re: OS startup goals and steps "wolfgang kern" <nowhere@never.at> - 2015-07-16 14:42 +0200
    Re: OS startup goals and steps "Rod Pemberton" <boo@fasdfrewar.cdm> - 2015-07-17 05:48 -0400
      Re: OS startup goals and steps "wolfgang kern" <nowhere@never.at> - 2015-07-17 17:29 +0200

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