[ale] Why do they keep putting VGA on Netbooks?!?!

[Richard Bronosky]

No. There are lots of flaws in your understanding.
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.
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.
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.

Now that you know this I believe you can share in my frustration. "With
great knowledge comes great frustration."

On Jan 27, 2011 6:57 AM, "Ron Frazier" <atllinuxenthinfo at c3energy.com>
wrote:

I presume you could adapt vga - dvi the same way you could adapt dvi -
vga. My Dell Inspiron 1525 has VGA and HDMI. However, my son's Dell
Inspiron 1545 does not have HDMI, so you have to check each model
number. They probably figure that VGA is still the most widely
compatible option. The trend now days seems to be fewer connector
options and fewer indicator lights. I can never tell when my son's
laptop is busy because it has no hard drive light. I hate that.

Ron


On 01/27/2011 01:19 AM, Richard Bronosky wrote:

> I complained about this 4 years ago. I can't believe I'm still finding
> myself saying "I want to ...
(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


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