[30374] in Hotline Meeting
RE:Test-sgi
daemon@ATHENA.MIT.EDU (John J Morey)
Mon Oct 16 07:08:26 1995
To: hotline@MIT.EDU
Date: Mon, 16 Oct 1995 07:08:15 EDT
From: John J Morey <jjmorey@MIT.EDU>
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To: jjmorey@MIT.EDU
Cc: hotline@MIT.EDU, cyyang@MIT.EDU, sipb-staff@MIT.EDU
Subject: Re: test-sgi.mit.edu hardware bug
From: John Hawkinson <jhawk@MIT.EDU>
> if you plug directly into the cd the cpu internal speaker will
> still work. There are a couple connections for speaker/headphones
> on the back of the cpu, 1 will allow sound through external speakers
> and internal cpu speaker, the other will allow sound only through
> the headphones or external speakers.
Sorry for the delay in answering this.
I just went and verified the problem still exists.
When you play audio on test-sgi, and plug headphones into the
headphone jack on the machine, sometimes (it's kind of intermittentant
- -- wiggling the audio plug on the headphones makes the problem come
and go) you can hear the audio through the speaker (at reduced
amplitude) as well as through the headphones.
I suggested this was a hardware bug since it sounds like the physical
mechanism which detects whether a plug is plugged in is failing
somehow.
In the original case, the headphones were indeed plugged in to the
right place. I suspect the severity of this problem varies depending
on the particular set of headphones you're using.
- --jhawk
John Hawkinson
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