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Annoying issue: Any fix?

post #1 of 7
Thread Starter 
[edit]: Fixed the issue. I had the refresh rate set to 30 frames. Changed the refresh rate to 60 frames and that fixed the issue.

I have a 6970 graphics card, but this issue happens also with a 5770 graphics card I've tried. So I've determined it must be the drivers (I sold my old screen because I thought it was the screen, then I switched cables, so I've narrowed it down that it's the drivers).

Anyways, the issue:

I run HDMI through my graphics card to my receiver to get lossless audio. I also run a DVI cable to my computer screen. Since both are receiving video signals, I have to go to the desktop and click "duplicate display", so I don't extend the display to a receiver with no screen. When I do this, it causes the bottom 15% of my screen to refresh at a different rate than the top 85% of the screen, so when there's any movement on the screen (ex. action scenes in a movie), the problem is very evident and looks horrible (think of a racing car which has the bottom half of it a cm behind the top half... anything at the bottom 15% of the screen is out of sync). When I turn off "duplicate display", this fixes the problem.

My issue though, is that to get lossless surround audio (for my expensive 5.1 surround system), I have to use HDMI (since optical only sends a high def stereo 2-channel signal).

Is there any fix to this? It's obviously the ATI/AMD drivers which are the issue.
Edited by PaulWog - 2/5/11 at 12:12am
    
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post #2 of 7
That's not a driver issue. It's a user issue. You're asking the card to output to two different displays at two different refresh rates. On top of that you're asking to output two audio sources at the same time, which it can't do.

Only thing I can think of is to not duplicate (as you've found out) and disable the output you aren't using.
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post #3 of 7
Thread Starter 
Quote:
Originally Posted by tsm106 View Post
That's not a driver issue. It's a user issue. You're asking the card to output to two different displays at two different refresh rates. On top of that you're asking to output two audio sources at the same time, which it can't do.

Only thing i can thing of is to not duplicate (as you've found out) and disable the output you aren't using.

You can't send audio thru two different outputs at the same time.
I don't think you understand the issue, as you have said it is my problem. This is definitely not my problem, as this feature is part of the card: The ability to duplicate displays. Should I want to have two displays showing the same picture, I certainly should be able to.

I never said I'm asking to output two audio sources. I said I'm sending out an HDMI and a DVI signal. DVI, for your information, does not send an audio signal.

Please only post if you have help to give.

[edit]: Fixed the issue. Lol your lack of help did help me in the end (so thankyou, in a weird way) So you know, the graphics card will not output different refresh rates (they always must be uniform). However that led me to check the refresh rate, which was set to 30 frames per second by default. I modified the refresh rate to 60 frames per second, and this fixed the issue.
Edited by PaulWog - 2/5/11 at 12:13am
    
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post #4 of 7
Quote:
Originally Posted by PaulWog View Post
I don't think you understand the issue, as you have said it is my problem. This is definitely not my problem, as this feature is part of the card: The ability to duplicate displays. Should I want to have two displays showing the same picture, I certainly should be able to.

I never said I'm asking to output two audio sources. I said I'm sending out an HDMI and a DVI signal. DVI, for your information, does not send an audio signal.

Please only post if you have help to give.
try running both @ 60Hz


it sounds like one screen is using "24p mode" aka 24hz
    
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post #5 of 7
Thread Starter 
Quote:
Originally Posted by punker View Post
try running both @ 60Hz


it sounds like one screen is using "24p mode" aka 24hz
+rep for the correct answer

I managed to fix it before the post, however had I not, that would've done it for me
    
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post #6 of 7
Quote:
Originally Posted by PaulWog View Post
+rep for the correct answer

I managed to fix it before the post, however had I not, that would've done it for me
Yea, ugh so it was a user issue. Don't get so pissed off next time seriously.

Holier than thou Batman.

DVI can send audio as it does with a specific ATI dongle.

The refresh rate difference was due to your hdtv running at hdtv refresh 1080/24 or 1080/30... etc etc.
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post #7 of 7
Thread Starter 
Quote:
Originally Posted by tsm106 View Post
Yea, ugh so it was a user issue. Don't get so pissed off next time seriously.

Holier than thou Batman.

DVI can send audio as it does with a specific ATI dongle.

The refresh rate difference was due to your hdtv running at hdtv refresh 1080/24 or 1080/30... etc etc.
The thing is, though, that the video card is outputting a constant refresh rate of 30/30 to both when the issue was happening. Outputting a constant refresh rate of 60/60 fixes it. I don't believe the graphics card is capable of variable refresh rates between two different devices.

And I was mad because:
1) You assumed it was a user error
2) You assumed I was outputting sound to two sources (not so)
3) You assumed I was doing things wrong with very little to run on, yet blatantly said it with confidence

In the end is still wasn't a user error. The screen should work the same at 30fps as compared to 60fps. Of course it's fixable by a user, but the fact that at 30fps it didn't work properly is a technical error I do believe.
    
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