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Helpful Reply1650 Super and DisplayPort to DVI woes.

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525floppy
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2021/05/16 17:32:21 (permalink)
Hi folks!  Hope someone can help a feller out.  I have a dual monitor setup, I'm using an Asus VG27V as my primary display, and an Acer V276HL as secondary.  I needed a longer cable to connect the Acer, so I picked up a Displayport to DVI adapter cable, specifically this one:



 
I'm running Windows 10, latest build, latest nVidia drivers, and I'll be darned if I can get a display on the Acer V276HL with this cable while in Windows.  The motherboard defaults to that monitor, so I can see it while in the UEFI/BIOS settings, and while Windows is loading, it is the one that displays the Windows logo and loading progress ring.  But as soon as the desktop loads, it loses the signal and defaults over to the Asus (which is connected via HDMI).
 
Again, it's really weird, and I don't think it's the cable per se since as I said, it shows the boot logo and the windows loading screen both.  
 
Windows recognizes the monitor, too; my display settings shows I have two monitors connected, and I can "move" them, although it keeps all icons and files crammed over on the single active display.  Oh, and the nVidia control panel recognizes that there's a second display over there, too.  I'd be worried that I'd killed the monitor moving it and swapping the cables but...again, I get a full display on it, just as long as I'm not in Windows.
 
Any suggestions before I return the DP-DVI cable and just get a longer DVI cable?
 
Thanks in advance everyone!
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    arestavo
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    Re: 1650 Super and DisplayPort to DVI woes. 2021/05/16 19:13:17 (permalink) ☄ Helpfulby 525floppy 2021/05/16 20:22:55
    I've had plenty of issues over the years with the EDID for multiple monitors in Windows getting borked. 
     
    If using DDU in safe mode (with networking disabled before booting into safe mode to prevent windows from installing an old driver) doesn't work, you can try searching how to delete your monitors in the registry, or if you're not comfortable with that a fresh install of Windows.
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    525floppy
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    Re: 1650 Super and DisplayPort to DVI woes. 2021/05/16 20:23:57 (permalink)
    Would you believe me if I told you that the problem seems to be the refresh rate!  How crazy is that - I didn't even think to check.  And, of course, it's fixed at 30.  Gotta return the cable.  I think I'll just stick with DVI at this point...
     
    Thank you very much for the insight though!
    post edited by 525floppy - 2021/05/21 15:22:46
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    BillBoyTM
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    Re: 1650 Super and DisplayPort to DVI woes. 2021/05/21 14:52:25 (permalink)
    Glad you got it fixed, refresh rate can be weird!
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    525floppy
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    Re: 1650 Super and DisplayPort to DVI woes. 2021/05/21 15:23:56 (permalink)
    BillBoyTM
    Glad you got it fixed, refresh rate can be weird!




    No kidding?  I wish the link to the cable on Amazon had stayed, though.  I would caution folks against it if their monitor does 60hz (fixed).
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    jschu99
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    Re: 1650 Super and DisplayPort to DVI woes. 2021/06/01 16:19:26 (permalink)
    Those adapters are usually finnicky to say the least
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    525floppy
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    Re: 1650 Super and DisplayPort to DVI woes. 2021/06/01 16:35:50 (permalink)
    jschu99
    Those adapters are usually finnicky to say the least




    I've got a couple of them in use (one DP-DVI/I on the wife's laptop, another DP-HDMI for a PC to TV connection elsewhere in the house), and I've installed them in client systems but I think I was just lucking out over and over again, based on things I've read.
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    Beanard
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    Re: 1650 Super and DisplayPort to DVI woes. 2021/06/05 01:01:27 (permalink)
    I bought a cheap DVI-HDMI adapter to replace the one I lost. I only found out later that there are two types of DVI ports: DVI-D and DVI-I. Unbeknownst to me, I bought DVI-I, but needed DVI-D. That fixed my problem and I got display again.
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    bossmanbossman
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    Re: 1650 Super and DisplayPort to DVI woes. 2021/06/07 21:43:19 (permalink)
    Did you fix it?
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    th3cl3ric
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    Re: 1650 Super and DisplayPort to DVI woes. 2021/06/08 18:23:05 (permalink)
    bossmanbossman
    Did you fix it?


    Yup, it was the cable and the refresh rate.

    So . . . I have 2 monitors too, so . . . if I understand it right, if I have my main monitor at 120mhz and my second at 60mhz with dvi it may not work properly?
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