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Richard,<br>
<br>
Thanks for clearing that up, sort of.<br>
<br>
OK, you're saying that a DVI output port can easily drive a VGA
display. OK, I get that, so, a NEW computer can drive an OLD monitor,
with an adapter.<br>
<br>
But, you're also saying that an OLD computer with a VGA port CANNOT
easily drive a NEW monitor with a DVI input port without an expensive
converter.<br>
<br>
That's a big problem. What I meant by my compatibility comment is
that the VGA output port is the most common, most ubiquitous, and most
pervasive video output available on all types of PC equipment. ( I
have no idea about Mac, Sun, etc. ) So, every time I buy a new monitor
or projector, which probably happens more often than I buy computers, I
have to worry about whether it has a VGA input port so it will work
with my old equipment, some of which dates back to 2002. Otherwise, I
have to worry about buying a converter in addition to the price of the
monitor.<br>
<br>
So, I guess I don't have a problem with them putting DVI on newer
computers, if you can easily adapt to VGA. However, I DO have a
problem with them not putting VGA INPUTS on monitors and projectors and
KVM's if that's going to make it impossible to use older equipment.<br>
<br>
Sincerely,<br>
<br>
Ron<br>
<br>
On 01/27/2011 08:19 AM, Richard Bronosky wrote:
<blockquote
cite="mid:AANLkTik-4ZzoM0V6MyK2R6rPam+RjKhhzP0mdF0Wgn3H@mail.gmail.com"
type="cite">
<p>No. There are lots of flaws in your understanding.<br>
1. DVI out (which is always DVI-I) includes both digital and analog.
Therefore, it is easily "adapted" to VGA or HDMI via simple pin
mapping. No electronics needed to do conversion.<br>
2. DVI inputs (which are almost always DVI-D) will not accept DVI-A
which is what you would have if you adapted VGA to DVI. This is because
there is no D-A chipset backing that port.<br>
3. VGA is not widely "compatible". All VGA signals start off digital
inside the video card. They then pass through a D-A converter chipset.
If that signal is sent to either a DVI port or the rare new DisplayPort
both digital AND analog is available. This is compatible with ALL
displays. If that signal is sent to VGA the digital is discarded and it
is incompatible with most modern displays. If the video card uses HDMI
only, there is no D-A conversion, they save money on the D-A chipset,
and it is compatible with only the modern displays.</p>
<p>Now that you know this I believe you can share in my frustration.
"With great knowledge comes great frustration."</p>
<blockquote type="cite">On Jan 27, 2011 6:57 AM, "Ron Frazier" <<a
moz-do-not-send="true" href="mailto:atllinuxenthinfo@c3energy.com">atllinuxenthinfo@c3energy.com</a>>
wrote:<br>
<br>
I presume you could adapt vga - dvi the same way you could adapt dvi -<br>
vga. My Dell Inspiron 1525 has VGA and HDMI. However, my son's Dell<br>
Inspiron 1545 does not have HDMI, so you have to check each model<br>
number. They probably figure that VGA is still the most widely<br>
compatible option. The trend now days seems to be fewer connector<br>
options and fewer indicator lights. I can never tell when my son's<br>
laptop is busy because it has no hard drive light. I hate that.<br>
<br>
Ron<br>
<p><font color="#500050"><br>
On 01/27/2011 01:19 AM, Richard Bronosky wrote:</font></p>
<p><font color="#500050">> I complained about this 4 years ago.
I can't believe I'm still finding<br>
> myself saying "I want to ...</font></p>
(PS - If you email me and don't get a quick response, you might want to<br>
call on the phone. I get about 300 emails per day from alternate energy<br>
mailing lists and such. I don't always see new messages very quickly.)<br>
</blockquote>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
(PS - If you email me and don't get a quick response, you might want to
call on the phone. I get about 300 emails per day from alternate energy
mailing lists and such. I don't always see new messages very quickly.)
Ron Frazier
770-205-9422 (O) Leave a message.
linuxdude AT c3energy.com
</pre>
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