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monitor input source

post #1 of 14
Thread Starter 
hey guys, just curious, i have an led monitor. it has vga, dvi and hdmi inputs.
does it matter what input i use? in terms of quality etc. i have an hdmi cable, but im currently running it on the vga input
thanks
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post #2 of 14
I use dvi myself but the difference b/w vga and dvi....i dont see it. However hdmi looked like crap for me
post #3 of 14
Thread Starter 
hmm, i assumed it would be the same its all essentially the same port. i mean, for my card, i have 2 dvi ports, and one mini hdmi port. to get to vga output i use the dvi to vga adapter. and to get to hdmi ill use the dvi to hdmi, essentially, the same dvi port
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post #4 of 14
If your picture seems fine now dont bother changing. But if you want to get a dvi cable.
post #5 of 14
its not about the input but the res and frame rates
post #6 of 14
Thread Starter 
i think ill try the hdmi cable out tomorrow, oh, it also could have been the quality of your hdmi cable that gave you a bad image
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post #7 of 14
Quote:
Originally Posted by BioniC187 View Post
hey guys, just curious, i have an led monitor. it has vga, dvi and hdmi inputs.
does it matter what input i use? in terms of quality etc. i have an hdmi cable, but im currently running it on the vga input
thanks
DVI and HDMI are absolutely the same thing - they are the same signal down different cables. You can get cables that do hdmi->dvi and visa-versa.

VGA, on the other hand, is analog, and hence the picture will be slightly less sharp. It's not a massive thing, but definitely go for HDMI or DVI over it if you have the choice.

As to HDMI cables, a different cable won't affect your picture quality - a truly terrible cable might cause serious issues (like lines across the screen, blocks of colour, etc...) but it wouldn't cause image quality degredation - it's digital, either the signal gets through, or it doesn't. When it doesn't, it'd be quite clear, not some slight quality issue.
Edited by lattyware - 6/12/11 at 4:47pm
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post #8 of 14
It way definitly not the hdmi cable. I used the same one on my xbox and hdtv and there was a big difference in picture quality and color representation.
post #9 of 14
Thread Starter 
ah okay, so the adapter that i have, dvi to vga, changes the signal to analogue. so the other dvi to hdmi adapter does not change it to analogue and keeps it digital. okay, maybe ill try it now
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post #10 of 14
Quote:
Originally Posted by BioniC187 View Post
ah okay, so the adapter that i have, dvi to vga, changes the signal to analogue. so the other dvi to hdmi adapter does not change it to analogue and keeps it digital. okay, maybe ill try it now
When we talk about DVI, we usually mean DVI-D, the digital one.

DVI ports come in a variety of setups, normally DVI-I, which gives the pins needed for both Digital and Analog. DVI-D is digital only, DVI-A is analog only (and you basically never see it). A DVI->VGA converter uses the DVI-A portion of the DVI socket, those pins.

Obviously, you normally want digital wherever possible.

DVI is quite a complex specification, with single and dual link modes (simply put, dual link is needed for resolutions above 1920x1200), and a variety of stuff to watch out for. As with DVI and HDMI, you can also put DisplayPort into the mix, albeit it's not as simple, as the singals are not the same as with DVI and HDMI.

But yes, in the simplest possible terms, you want to use DVI or HDMI on both ends (any permutation of) for the best quality image.
Edited by lattyware - 6/12/11 at 5:04pm
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Shinobu
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Nodoka
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Index
(4 items)
 
CPUMotherboardGraphicsRAM
Intel Core i5-3570K Asus P8Z77-I Deluxe HD6450 Flex Crucial 16GB (2x 8GB) Ballistix Elite 
Hard DriveHard DriveOSMonitor
Samsung SSD 840 EVO 250GB TOSHIBA DT01ACA300 Arch Linux Dell UltraSharp U2713HM 
MonitorMonitorKeyboardPower
Dell U2410 Dell 2407WFP Cherry - Cherry Blue Switches (Unlabeled keys) Seasonic X-650 
CaseMouseAudioAudio
BitFenix Prodigy Black Logitech M570 Trackball Sennheiser HD595 Creative GigaWorks T20 
CPUMotherboardGraphicsRAM
Intel Core i5 3570K Zotac Z77-ITX WiFi EVGA 680 GTX Samsung 
Hard DriveHard DriveOSMonitor
Samsung 256GB 830 Samsung SpinPoint HD501LJ Windows 7 Dell U2410 
MonitorMonitorKeyboardCase
Dell 2407WFP Dell E248WFP Cherry Black (MX Blue Switches, Blank Keys) Silverstone Sugi SG08B 
MouseAudioAudio
Logitech Trackman Logitech Z-5500 Sennheiser HD595s 
CPUMotherboardRAMHard Drive
AMD Athlon II X2 240e Asus M5A78L-M/USB3 Crucial 8GB (2x4GB) DDR3 1600Mhz Ballistix Sport 1.5TB Hard Drives 
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