mwizard99{at}comcast.net wrote:
> In , on 01/22/07 
>    at 09:32 AM, "Derek W. Keoughan"  said:
> 
>> inkleput{at}isp.com wrote:
>>> I fed the second vid output from my T42 to my stand alone
17" LCD.  The
>>> T42 is a 15"  and had the most basic video card for that
year.  Both are
>>> always set at the default/native resolution of 1024 x 768.  Everything
>>> worked straight up.  No searching for bits and pieces or setting odd
>>> settings.
>>>
>>> But the quality of the 17" display was pretty bad.  It had the
>>> appearance almost of printing done on poor or damp paper that let the
>>> ink bleed out from the edges of the characters a little.  Just fuzzy,
>>> diffused edges.  Very bad compared to what it does very crisply with my
>>> desktop - it's normal operation.
>>>
>>> If the T42 had had the second or third step up in card quality would
>>> this diffused look have been eliminated, or is this a driver problem?
> 
>> External VGA should match your laptop screen, with perhaps slight 
>> blurring if you're using extremely long VGA cables (as is often the case 
>> with KVM switches, especially ones with cheap cables).
> 
>> Your external panel may also be a slower refresh design than the 
>> built-in laptop screen, which would cause ghosting and blurriness, 
>> especially on fast-moving images.
> 
>> Can't speak for the T42, as I have no experience with it, but perhaps 
>> it's a full-digital display, while the external VGA port would be 
>> digital (video memory) to analog (the signal down the cable) to digital 
>> (within the external panel), so there's some loss of sharpness in the 
>> double conversion.
> 
>> You're also comparing a 15" LCD and a 17" LCD at the same native 
>> resolution - the pixel size on the 17" would be bigger, which
would also 
>> introduce some graininess.
> 
>> Hope this helps!
> 
>> -Derek
> 
> Perhaps you can recall that the LCD screens display less than stellar
> results when used at their non-native resolution?   I have not heard that
> this problem has been resolved yet.

Never will be.

Quoted from above:  "Both are always set at the default/native 
resolution of 1024 x 768."

That's not the issue here.  The screens match for pixel counts.

> Each LCD screen created, has a native resolution at which it displays its
> best.  The specs that come with the screen should share that information
> with you.  A normal CRT has a much wider range of resolutions that display
> quite crisply.
> 
> Perhaps the native resolution on the 15"LCD is not the same as the native
> resolution for the 17"LCD device?

Which is as I said... the pixels on the 17" will be larger, so 1024 of 
them across the screen will stretch further...

-Derek


-- 

Derek W. Keoughan,
Finnegan Software, Inc.,  Brampton, Ontario, Canada  http://www.finnsoft.com
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