Re: [Thinkpad] T21 WinXP weird background sounds from speakers

So, just out of curiosity, do you get the _other_ sound when you lower
the screen's brightness? Or do I have a "unique" T21?... <g>

  - Brian

On Friday, April 11, 2003, at 01:00 PM, Andrew G. Malis wrote:

> Brian,
>
> I'm pretty sure it's got to do with the sound driver. I'm going to
> reload XP from scratch when I get a chance.
>
> Cheers,
> Andy
>
> -------
>
> At 4/11/2003 10:30 AM -0400, Brian Bender wrote:
>
>> A question for the O.P.:
>>
>> Is it _always_ constant? I noticed the same thing with my T21
>> (running Linux), but it's only when the screen isn't running at full
>> brightness (either manually lowered w/ fn-End or when running on
>> battery power). At full brightness on AC power, the sound isn't
>> there. I assume it's something related to the "dimmer" circuit for
>> the backlight...
>>
>> - Brian
>>
>>> Message: 3
>>> From: jberry@islandnet.com (Jonathan Berry)
>>> To: thinkpad@stderr.org
>>> Subject: Re: [Thinkpad] T21 WinXP weird background sounds from
>>> speakers
>>> Date: Thu, 10 Apr 2003 14:14:29 -0800
>>> Organization: www.islandnet.com/~jberry/
>>>
>>> In article
>>> <5.2.0.9.0.20030331155618.042d9b18@po1.vivacenetworks.com>,
>>> "Andrew G. Malis" <Andy.Malis@vivacenetworks.com> wrote:
>>>
>>>> There's a constant low-level intermittent (about a 75% duty cycle
>>>> with
>>>> varying but average cycles of 1/2 sec to about 4 seconds) "whine".
>>>
>>> There was a slightly similar problem with the 701C under a
>>> particular BIOS.
>>

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Received on Fri Apr 11 13:09:55 2003