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DVI ==> Digital Video Input
If your monitor has both DVI and VGA inputs, and your PC's video-card has both DVI and VGA outputs, then buy a DVI-to-DVI cable, and use it, for a better picture.
If your monitor has both DVI and VGA inputs, and your PC's video-card only has VGA output, then use a VGA-to-VGA cable. Or, purchase a video-card with DVI output, to replace the video-card with VGA output, and then use a DVI-to-DVI cable.
you can use on all vga cards(you dont need any special controler), this monitor has a USB hub and its is detected normaly on winxp or above, and the vga cards detect the monitor auto. i give you the monitor specs, take form website
OSD LanguagesFrench , German , English , Spanish , Japanese
Display Screen CoatingAnti-glare , Hard coating
Signal InputDVI-D, VGA
FeaturesPicture by picture , Picture in picture
Analog Video SignalRGB , S-Video , Composite video
Digital Video StandardDigital Visual Interface (DVI)
Expansion / Connectivity
Interfaces1 x VGA - 15 pin HD D-Sub (HD-15) , 1 x DVI-D - 24 pin digital DVI , 1 x Composite video input - RCA , 1 x S-video input - 4 pin mini-DIN , 4 x Hi-Speed USB downstream - 4 pin USB Type A , 1 x Hi-Speed USB upstream - 4 pin USB Type B
Flat Panel Mount Interface100 x 100 mm
FeaturesSecurity lock slot (cable lock sold separately)
Compliant StandardsCE , CCC , MIC , NOM , PSB , BSMI , GOST , SASO , NEMKO , TUV S , C-Tick , TUV GS , EN55022 , TCO '99 , EN 60950 , ICES-003 , TUV Ergo , UL 60950 , IEC 60950 , EN 61000-3-2 , EN 61000-3-3 , FCC Part 15 B , VCCI Class B ITE
FIX for design fault of ASUS VW222u Problems with monitor using dvi while vga works fine. my ASUS VW222u had the same problem many are reporting after about 8 months with developing colored "noise" onscreen or dancing red pixels while using dvi but vga is fine.
my old man is an electronics engineer, rather than be without a monitor
since vga still works fine we decided to have a look.
we worked out the problem. note: this is a fix for the random picture noise problem while using dvi port.
If monitor works ok with vga but dvi has noise then this fix should work for you.
1.open monitor (will void warrenty) 2.unplug
all the the cables going to the power supply and dvi port assembly,
undo two screws pull down and out you wil now be looking behind the dvi
port and be holding a metal module that contails power supply and dvi-
and vga port.
3.you will notice a piece of brass foil joining
the earths on your dvi and vga cable this is the problem creating an
"earth loop" as both vga and dvi ports are earthed to the metal casing
this extra earth is causing the problem introducing noise.
unwrap the brass foil from the two cables and seperate, insualte cables
with electrical tape. (wrap around each one seperately they should now
be indiivdual cables)
4.you will notice a silver spring type peice of metal on the assembly that pushes against the main
body of the unit when re-assembled. scratch the metal with a
screwdriver where this peice pushes so you get a good connection when
you reassemble it, do not touch as finger grease could screw up the
connection. (this step is not vital just a good thing to do why your in
there to make sure the the unit is properly earthed)
fixed mine and was quite easy, take care with the plastic latches they
are tight - ensure you remove all 5 screws, to see the fifth easily the
monitor stand must be removed (two screws then stand slides out from
rear of case)
You will not benefit from the DVI input unless you have DVI output on your computer. The great advantage of DVI is that the picture is transferred in digital form all the way from your computer to the individual pixels on the monitor. If you only have VGA output on your computer then you will never get a better picture than by using a good quality VGA cable to link that to the VGA input on your monitor.
The DVI plug is designed to carry both digital and analogue (VGA) signals on the various pins, so "adaptors" exist to allow a VGA monitor to attach to a DVI output on a computer. Monitors may also support VGA input from their corresponding DVI input sockets, but the picture quality will never be better than by using a good VGA cable because it is still not using the digital capability of the DVI interface. What's more, because you may need more adaptors and thinner conductors in the cable, you will probably achieve a marginally poorer picture than with VGA to VGA.
When you next buy a PC or a new video card, get one with DVI to take advantage of your new monitor. In the meantime, your best bet is a quality VGA to VGA link.
Sorry that's not what you were wanting to hear, but I hope it will help you avoid further frustration.