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aus+uk / uk.comp.homebuilt / Re: Question regarding 4k display/

SubjectAuthor
* Question regarding 4k display/jimmy
`* Re: Question regarding 4k display/Theo
 +- Re: Question regarding 4k display/jimmy
 `* Re: Question regarding 4k display/jimmy
  `- Re: Question regarding 4k display/Theo

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Question regarding 4k display/

<tim7qs$1ndv$1@gioia.aioe.org>

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From: GER...@BARLYMCGREW.COM (jimmy)
Newsgroups: uk.comp.homebuilt
Subject: Question regarding 4k display/
Date: Tue, 18 Oct 2022 13:57:00 +0100
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 by: jimmy - Tue, 18 Oct 2022 12:57 UTC

I bought a new Samsung tv which is a 4k one.

I have it connected by display port output my Nvidia GT660 card on my pc to
HDMI on my tv.

But when I go into my nvidia control panel and select the new tv the highest
resolution offered is 1920 x 1080 ?

Do I have to use the "customise" button to increase it to 3840x2160 ?

Thanks!

Re: Question regarding 4k display/

<WBw*iw80y@news.chiark.greenend.org.uk>

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From: theom+n...@chiark.greenend.org.uk (Theo)
Newsgroups: uk.comp.homebuilt
Subject: Re: Question regarding 4k display/
Date: 18 Oct 2022 22:09:52 +0100 (BST)
Organization: University of Cambridge, England
Message-ID: <WBw*iw80y@news.chiark.greenend.org.uk>
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Originator: theom@chiark.greenend.org.uk ([212.13.197.229])
 by: Theo - Tue, 18 Oct 2022 21:09 UTC

jimmy <GERRY@barlymcgrew.com> wrote:
> I bought a new Samsung tv which is a 4k one.
>
> I have it connected by display port output my Nvidia GT660 card on my pc to
> HDMI on my tv.
>
> But when I go into my nvidia control panel and select the new tv the highest
> resolution offered is 1920 x 1080 ?
>
> Do I have to use the "customise" button to increase it to 3840x2160 ?

Your GT660 may not support sufficiently high HDMI bandwidth to drive it at
4K. Possibly your cable likewise - you want a 'high speed' HDMI cable.

It is possible the display only handles 4K using HDMI 2.0 and the GT660
doesn't have that.

Although I have successfully driven a 4K display from a GTX650 with HDMI 1.4
at 30Hz (well, 29.94Hz or something), which may be an option. That may
require a custom mode.

Theo

Re: Question regarding 4k display/

<tin659$e2f$1@gioia.aioe.org>

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From: GER...@BARLYMCGREW.COM (jimmy)
Newsgroups: uk.comp.homebuilt
Subject: Re: Question regarding 4k display/
Date: Tue, 18 Oct 2022 22:34:31 +0100
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 by: jimmy - Tue, 18 Oct 2022 21:34 UTC

"Theo" wrote in message news:WBw*iw80y@news.chiark.greenend.org.uk...

jimmy <GERRY@barlymcgrew.com> wrote:
> I bought a new Samsung tv which is a 4k one.
>
> I have it connected by display port output my Nvidia GT660 card on my pc
> to
> HDMI on my tv.
>
> But when I go into my nvidia control panel and select the new tv the
> highest
> resolution offered is 1920 x 1080 ?
>
> Do I have to use the "customise" button to increase it to 3840x2160 ?

Your GT660 may not support sufficiently high HDMI bandwidth to drive it at
4K. Possibly your cable likewise - you want a 'high speed' HDMI cable.

It is possible the display only handles 4K using HDMI 2.0 and the GT660
doesn't have that.

Although I have successfully driven a 4K display from a GTX650 with HDMI 1.4
at 30Hz (well, 29.94Hz or something), which may be an option. That may
require a custom mode.

Theo

--

Thanks Theo that gives me a few things to look into!

Re: Question regarding 4k display/

<tin6jq$jqi$1@gioia.aioe.org>

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From: GER...@BARLYMCGREW.COM (jimmy)
Newsgroups: uk.comp.homebuilt
Subject: Re: Question regarding 4k display/
Date: Tue, 18 Oct 2022 22:42:16 +0100
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 by: jimmy - Tue, 18 Oct 2022 21:42 UTC

"Theo" wrote in message news:WBw*iw80y@news.chiark.greenend.org.uk...

jimmy <GERRY@barlymcgrew.com> wrote:
> I bought a new Samsung tv which is a 4k one.
>
> I have it connected by display port output my Nvidia GT660 card on my pc
> to
> HDMI on my tv.
>
> But when I go into my nvidia control panel and select the new tv the
> highest
> resolution offered is 1920 x 1080 ?
>
> Do I have to use the "customise" button to increase it to 3840x2160 ?

Your GT660 may not support sufficiently high HDMI bandwidth to drive it at
4K. Possibly your cable likewise - you want a 'high speed' HDMI cable.

It is possible the display only handles 4K using HDMI 2.0 and the GT660
doesn't have that.

Although I have successfully driven a 4K display from a GTX650 with HDMI 1.4
at 30Hz (well, 29.94Hz or something), which may be an option. That may
require a custom mode.

Theo

--

Apparently is does via the display port but my cable is display port to hdmi
so maybe I need dp to dp

https://www.nvidia.com/en-gb/geforce/graphics-cards/geforce-gtx-660/specifications/

Re: Question regarding 4k display/

<WBw*MGe1y@news.chiark.greenend.org.uk>

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From: theom+n...@chiark.greenend.org.uk (Theo)
Newsgroups: uk.comp.homebuilt
Subject: Re: Question regarding 4k display/
Date: 20 Oct 2022 11:19:04 +0100 (BST)
Organization: University of Cambridge, England
Message-ID: <WBw*MGe1y@news.chiark.greenend.org.uk>
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Originator: theom@chiark.greenend.org.uk ([212.13.197.229])
 by: Theo - Thu, 20 Oct 2022 10:19 UTC

jimmy <GERRY@barlymcgrew.com> wrote:
> Apparently is does via the display port but my cable is display port to hdmi
> so maybe I need dp to dp
>
> https://www.nvidia.com/en-gb/geforce/graphics-cards/geforce-gtx-660/specifications/

Yes, you don't want any conversion if you can help it. DP is generally
better at handling higher bandwidth than HDMI, at least in that kind of
vintage.

If the monitor has DP I'd use that wherever possible.

Theo

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