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Thread ID: 124144 2012-04-09 04:03:00 Differences between DVI and HDMI DeSade (984) Press F1
Post ID Timestamp Content User
1268989 2012-04-09 04:03:00 I installed my new GTX 680 and all went smoothly.
Since it has different connectors and I only have one of them (so far) I opted to use one HDMI and two DVI ports on the card (because there is only one HDMI and my monitors do not seem to have Display Port.

I cannot figure out why the DVI monitors look SO much better than the HDMI, I thought it would be the other way around.
Can anyone explain this?

Also is there such a thing as a HDMI to Display Port cable?
DeSade (984)
1268990 2012-04-09 05:42:00 DVI and HDMI are very similar although HDMI has higher bandwidth, can also carry audio, and has the HDCP DRM junk.

If a display is not HDCP compliant and you try to display protected content then it can reduce quality or even display nothing to stop you potentially copying it illegally somehow.

Perhaps the HDMI looks bad because of some issue related to HDCP.
Or, it might just be a configuration (resolution or some other thing) issue.
Agent_24 (57)
1268991 2012-04-09 05:48:00 when you use a different port in the GPU it will use default settings for color, resoulution and everythign els so you may have to go and set it all back to what you configured your dvi ports too. Slankydudl (16687)
1268992 2012-04-09 08:21:00 I played with the settings for about an hour.
HDMI always looked washed out and lifeless where as the DVI was vibrant rich and deep/
DeSade (984)
1268993 2012-04-09 09:05:00 There is something on xbox 360's regarding colour temps/profiles for the monitor.

If you have another HDMI device try that to see if you can replicate the washed out colour OR use an HDMI to DVI converter (if you have one around or borrow one) to see if it's hte monitor port making the changes.

I'm guessing it might be a monitor thing or the computer adjusting colour profiles somewhere for DVI/HDMI check windows colour settings rather than the ones in the drivers (if the drivers settings are correct) sometimes there are conflicts or windows overrides/adjusts things too.
The Error Guy (14052)
1268994 2012-04-09 09:37:00 Just a thought is ,Your HD Monitor actually a TV? If so some Nvidea cards have problems, especially Sony Bravias. (just been through this.) PPp (9511)
1268995 2012-04-09 09:56:00 My 22" Samsung monitor is actually a TV and it looked like **** on HDMI until I told it it was a PC connection by renaming the input to HDMI PC, nothing in the setup instructions such as they are mentions this. Worth checking monitor settings. dugimodo (138)
1268996 2012-04-09 14:07:00 My monitors are Alienware OptX AW2310's
The computer knows they are monitors not TV's
DeSade (984)
1268997 2012-04-10 00:42:00 I've had quite a bit of pain with this particular issue. My old GTX260 was hopeless, the new 6870 works a charm. ;)

I don't fully understand why it happens either which is annoying - its all well and good changing the setting to 'pc monitor' but what I don't know is what actually changes in the background when you do that. A lot of new screens actually have a setting on the screen OSD that you have to change, i had this with some new viewsonic's a couple of weeks ago.
wratterus (105)
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