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OT: what do you know about Linux?

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  OT: what do you know about Linux? "Juan R. de Silva" <juan.r.d.silva@gmail.com> - 2016-04-26 03:30 +0200
    Re: OT: what do you know about Linux? Felix Miata <mrmazda@earthlink.net> - 2016-04-26 03:50 +0200
      Re: OT: what do you know about Linux? "Juan R. de Silva" <juan.r.d.silva@gmail.com> - 2016-04-26 07:10 +0200
        Re: OT: what do you know about Linux? Lister <lists@coffeehabit.net> - 2016-04-29 21:10 +0200
    Re: OT: what do you know about Linux? Jude DaShiell <jdashiel@panix.com> - 2016-04-26 11:30 +0200

#167105 — OT: what do you know about Linux?

On my desktop I still use and old keyboard with PS/2 connector.
My mouse an USB one, so the mouse PS/2 port on motherboard remains free.

A couple of days ago I had to reconnect my keyboard to motherboard. I was 
doing it in hurry and in the dark, just to the touch. 

A day later while restarting the machine I was surprised by message from 
BIOS:"No keyboard detected." However, when started, Debian had no trouble 
with my keyboard. It was fully functional.

Today I had a minute to pull out my desktop tower and found that I 
mistakenly plugged keyboard connector into the mouse PS/2 port.

I wish to see Windows trying to swallow this. :-) Or I am outdated on 
Windows skills, am I?

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#167107

Juan R. de Silva composed on 2016-04-26 01:26 (UTC):

> On my desktop I still use and old keyboard with PS/2 connector.
> My mouse an USB one, so the mouse PS/2 port on motherboard remains free.

> A couple of days ago I had to reconnect my keyboard to motherboard. I was
> doing it in hurry and in the dark, just to the touch.

Plugging a PS/2 keyboard connector into a motherboard port while the PC is
powered up is a bad idea. Sometimes doing so can permanently render the
motherboard port useless.

> A day later while restarting the machine I was surprised by message from
> BIOS:"No keyboard detected." However, when started, Debian had no trouble
> with my keyboard. It was fully functional.

The Linux driver doesn't care which port the keyboard is plugged into. The 
motherboard BIOS does care, hence the warning at boot. Plugged into the wrong 
port, you can't use the keyboard to get into BIOS setup or anything else you 
might wish to key before the PC boots an OS.

> Today I had a minute to pull out my desktop tower and found that I
> mistakenly plugged keyboard connector into the mouse PS/2 port.

Dejavu. There was a long thread almost a month ago here "Changing Boot Order" 
about using the wrong port.

> I wish to see Windows trying to swallow this. :-) Or I am outdated on
> Windows skills, am I?

???
-- 
"The wise are known for their understanding, and pleasant
words are persuasive." Proverbs 16:21 (New Living Translation)

  Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!

Felix Miata  ***  http://fm.no-ip.com/

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#167111

On Mon, 25 Apr 2016 21:46:22 -0400, Felix Miata wrote:

> Juan R. de Silva composed on 2016-04-26 01:26 (UTC):
> 
>> On my desktop I still use and old keyboard with PS/2 connector.
>> My mouse an USB one, so the mouse PS/2 port on motherboard remains
>> free.
> 
>> A couple of days ago I had to reconnect my keyboard to motherboard. I
>> was doing it in hurry and in the dark, just to the touch.
> 
> Plugging a PS/2 keyboard connector into a motherboard port while the PC
> is powered up is a bad idea. Sometimes doing so can permanently render
> the motherboard port useless.
> 
>> A day later while restarting the machine I was surprised by message
>> from BIOS:"No keyboard detected." However, when started, Debian had no
>> trouble with my keyboard. It was fully functional.
> 
> The Linux driver doesn't care which port the keyboard is plugged into.
> The motherboard BIOS does care, hence the warning at boot. Plugged into
> the wrong port, you can't use the keyboard to get into BIOS setup or
> anything else you might wish to key before the PC boots an OS.
> 
>> Today I had a minute to pull out my desktop tower and found that I
>> mistakenly plugged keyboard connector into the mouse PS/2 port.
> 
> Dejavu. There was a long thread almost a month ago here "Changing Boot
> Order"
> about using the wrong port.
> 
>> I wish to see Windows trying to swallow this. :-) Or I am outdated on
>> Windows skills, am I?
> 
> ???

All you comments are correct and my funny experience proofs it. I was 
certainly lucky not to blow up my motherboard. Praise to ASUS.

I've meant to say that as far as I know Windows would not be able to run 
keyboard connected so wrongly at all. Even if, like in my case, 
motherboard survived such a bad treatment.

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#167222

On 26/4/16 13:09, Juan R. de Silva wrote:
> I've meant to say that as far as I know Windows would not be able to run
> keyboard connected so wrongly at all. Even if, like in my case,
> motherboard survived such a bad treatment.

For what it's worth, Windows doesn't care either.  If I'm not mistaken, 
even the BIOS doesn't really care - it just reports that the keyboard 
isn't plugged in where it expects it, but the message is usually 
something to the effect of:

Error: no keyboard found, press any key

And sure enough, you can hit that magical "any" key and it will sail 
right past the error.

This might be different depending on the board/bios, but in my years of 
PC support (back when linux users still opted for the PS/2 
keyboard/mouse out of necessity) I never came across a board that didn't 
recognise the keyboard when plugged into the wrong port.

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#167114

It's my understanding Linux ignores bios entirely and gets its work done 
by other means.  On Tue, 26 Apr 2016, Juan R. de Silva wrote:

> Date: Mon, 25 Apr 2016 21:26:05
> From: Juan R. de Silva <juan.r.d.silva@gmail.com>
> To: debian-user@lists.debian.org
> Subject: OT: what do you know about Linux?
> Resent-Date: Tue, 26 Apr 2016 01:26:30 +0000 (UTC)
> Resent-From: debian-user@lists.debian.org
> 
> On my desktop I still use and old keyboard with PS/2 connector.
> My mouse an USB one, so the mouse PS/2 port on motherboard remains free.
>
> A couple of days ago I had to reconnect my keyboard to motherboard. I was
> doing it in hurry and in the dark, just to the touch.
>
> A day later while restarting the machine I was surprised by message from
> BIOS:"No keyboard detected." However, when started, Debian had no trouble
> with my keyboard. It was fully functional.
>
> Today I had a minute to pull out my desktop tower and found that I
> mistakenly plugged keyboard connector into the mouse PS/2 port.
>
> I wish to see Windows trying to swallow this. :-) Or I am outdated on
> Windows skills, am I?
>
>

-- 

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