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HDMI and Monitors
Last Post 30 Aug 2010 06:57 AM by . 1 Replies.
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CharlesUser is Offline
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Posts:26

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30 Aug 2010 05:58 AM  

Hi Steve I was looking for a 22" monitor for a system that I'm building for a friend and like this one "Asus LS221H". 
It says it has VGA, DVI and HDMI inputs.
Can you use the HDMI to connect the monitor to the PC? 
Connectivity Video input type VGA, DVI, HDMI
Display Brightness 300 cd/m2
Claimed viewing angle (horizontal) 160 degrees
Claimed viewing angle (vertical) 170 degrees
Contrast ratio 4000 :1
Display colour support 16.7 million
Max resolution (pixels) 1680 x 1050 pixels
Monitor size (diagonal) 22 inch Pixel
response time 2 ms
Dimensions (H x W x D) 436 x 531 x 24.8 mm
Weight 7 kg
BkkSteveUser is Offline
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Posts:79

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30 Aug 2010 06:57 AM  
Hi Charles  -

Yes, you can connect a monitor via an HDMI cable providing your video card has the appropriate ports. 

VGA -  This is a smaller D15 connector that passes an analog video only signal.  This is what we used in the beginning and its still supported and in use today, but not the best choice.

DVI -  You have both DVI-I and DVI-D connectors.  These cables pass digital video signals and are what I personally use on my new NEC professional monitors.  Also, both can pass DDC information (internal LUT's for profiling purposes).

HDMI -  This is a smaller connector commonly found on televisions and home entertainment systems, and some computer monitors.  It's digital like DVI, but also passes audio.  So, one cable, both video and up to 7 channels of sound (dolby 7.1).  This makes connecting a DVD, Blue-ray, home theater amp, video games, cable boxes, etc, to your HDMI equipped television very simple and easy.

Display Port -  This it the newest and most capable video connector/cable.  It comes in the "mini" and full size versions.  This also passes both video and sound and because it's using external timing you can daisy chain several monitors together using DP cabling.  Because its the newest, its not yet that common.

Dell monitors are early supports of DP, and also have HDMI and DVI ports.  Their U2411 and U2711 are both excellent low price S-IPS monitors ideal for imaging.

Viewsonic also has some inexpensive S-IPS monitors.  The 2365b (23 inch 16:10 perspective) for instance is $289 in the states.  I hope to have one here in the next 30 days or so for testing.

The Asus you show is fine for general purpose use, but not so great for imaging.   We're fortunate, in that S-IPS monitors used to be very expensive, but are now coming out in the $200-$300 range which is great for the consumer.  Both Dell and Viewsonic also have 3 year warranties.

At the moment, the video card that makes the most sense is the ATI Radeon.  There are many at different power/price points. but any of the 5000 series (some for as low as 1200 baht locally or $45 in the states) can be had with three ports, DVI, HDMI, DP and run all three.  An excellent power/price card is the 5770 (read the review on this site) now available for about $139 in the states.  You can buy different port configurations.. one double slot 5770 has (2) DVI, 1 HDMI, 1 DP and 1 VGA..

And adapters are often included.. so a DVI to DP, or DVI to HDMI becomes possible.  There are even digital (DVI) to analog (VGA) adapters included with some.  There are limits on adapters, or certain ways to run a third monitor, so if you're going to go there ask and I'll explain further.
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