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Question about receiver to pc setup with 120hz monitor and gtx 690

Last response: in Graphics & Displays
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May 27, 2013 12:05:44 PM

Not sure if this is the right forum to ask but here goes.

I have a 120hz monitor, a Yamaha rx-v473 receiver and a gtx 690. I couldn't do the usual video card to receiver, and monitor to hdmi out on receiver because then it was limited to 60hz refresh rate. So what I did instead was monitor to video card via dvi-d cable (gives me 120hz) and then video card to receiver via dvi to hdmi cable. After I do that I can see both monitor and receiver as separate "displays" in display options. So I mirror them and that gets me sound and keeps my 120hz refresh rate.

I tested sound (it did dts, dolby etc fine) and played a few games without issues but still have a few questions/concerns.

1 - Is this the best way to connect it with the setup that I have?
2 - Since second "display" is the receiver in mirror mode, would there be any impact to performance in video games?
3 - If I check the info on the monitor it shows 1920x1080 120hz, but if I check signal info for the receiver under HDMI it says 1080i, not 1080p. Is that something I can ignore? It cant be running 1080i at 120hz correct?

Thanks in advance for any replies.

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a c 80 U Graphics card
a b C Monitor
May 27, 2013 12:24:47 PM
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That is, in fact, your best option for your setup. It shouldn't be affecting framerate at all; if it is, then it's no more than one or two fps.

Don't worry about the receiver - it's not running at 120Hz, and shouldn't be anyways. 1080i is probably the highest resolution it can accept, and it's working at 60Hz, just like a normal monitor would if you hooked it up as a secondary screen. You don't have to run every monitor at the same resolution or refresh rate.
May 27, 2013 3:46:28 PM

DarkSable said:
That is, in fact, your best option for your setup. It shouldn't be affecting framerate at all; if it is, then it's no more than one or two fps.

Don't worry about the receiver - it's not running at 120Hz, and shouldn't be anyways. 1080i is probably the highest resolution it can accept, and it's working at 60Hz, just like a normal monitor would if you hooked it up as a secondary screen. You don't have to run every monitor at the same resolution or refresh rate.


Thank you for clearing it up. So just to make sure I got this right, even though they are setup in mirror mode, the monitor is running 1080P 120hz and I can ignore that the receiver says 1080i since its just being used for sound, correct? It was just weird because when this receiver is hooked up to a lcd tv the normal way via hdmi it did say 1080p for signal info. Thats what confused me in the first place.
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a c 80 U Graphics card
a b C Monitor
May 27, 2013 6:44:29 PM

That's correct, yeah. It's because a monitor (which is how your computer sees the receiver) sends a computer information about it's maximum resolution and refresh rate - it can't take an input higher than that and still display. That's why when you have the TV plugged in, it uses 1080p; because it can take that.
May 28, 2013 6:43:59 PM

DarkSable said:
That's correct, yeah. It's because a monitor (which is how your computer sees the receiver) sends a computer information about it's maximum resolution and refresh rate - it can't take an input higher than that and still display. That's why when you have the TV plugged in, it uses 1080p; because it can take that.


Thanks again for your help so far. One last question. When I clone the receiver and the monitor via the nvidia control panel it mentions something like "cloning the focus display will reduce multi gpu performance". Since the 690 is a dual gpu card is that something I need to be concerned about?
a c 80 U Graphics card
a b C Monitor
May 28, 2013 6:49:34 PM

I haven't had experience with the 690, but I wouldn't worry about it too much; it's got MORE than enough horsepower to run three monitors, much less one 120hz and a clone.
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