[TriLUG] Display adapter and cable to monitor

Thu Feb 2 10:55:17 EST 2017

Interesting discussion. Googling this found articles about HDMI, which
indicate that a new HDMI 2.0 standard supports higher resolution: up
to 3820 x 2160 @ 60 fps.
Ref:
http://www.digitaltrends.com/buying-guides/hdmi-vs-dvi-vs-displayport-vs-vga/

The cables are unchanged, but to use it both ends need to support HDMI 2.0.
So first check your monitor specs.

However, it's not clear which adapters support HDMI 2.0. My impression is
that it's mostly high-end cards:
http://www.tomshardware.com/answers/id-2965394/video-cards-hdmi.html

I just sent an email to EVGA:

*Your video adapter product listings seem to just say "HDMI," with no
indication of the version. Can you tell me which ones support HDMI 2.0, and
which ones support only HDMI 1.4?*

*E.g., does this one?*
*http://www.evga.com/products/product.aspx?pn=01G-P3-1731-KR*
<http://www.evga.com/products/product.aspx?pn=01G-P3-1731-KR>

NewEgg does have the ability to filter searches for HDMI 2.0. I don't know
how trustworthy that filter is. The adapters it finds seem to start at
about $100, but most of them are dual-fan monsters. If you're programming,
rather than gaming, I'd prefer a lower-performance fanless adapter, but
that doesn't seem to be an option:

https://www.newegg.com/Product/ProductList.aspx?Submit=ENE&N=100007709%20601107673&IsNodeId=1&bop=And&PageSize=96&order=PRICE

Dave

On Thu, Feb 2, 2017 at 10:03 AM, Wes Garrison via TriLUG <trilug at trilug.org>
wrote:

> Most computer HDMI ports and single-link DVI only support up to 1900x1200.
>
> Dual-link DVI <https://en.wikipedia.org/wiki/Digital_Visual_Interface>
> supports up to 2560x1600 (which includes 2560x1440).
>
> DVI on most Macs that I've seen are single-link, so don't go that way.
>
> You'll have to do either DisplayPort on both ends, or *TWO* HDMI cables and
> hope your distribution supports link aggregation.
>
> That's why there's 2 ports on the monitor.
>
> What model is this monitor?  I'm surprised it doesn't have Dual-link DVI.
>
> -Wes
>
> _________________________________
> Wesley S. Garrison
> Network Engineer
> Xitech Communications, Inc.
> phone:  (919) 260-0803
> fax:       (919) 932-5051
> __________________________________
> "Lead us not into temptation, but deliver us from email."
>
> On Thu, Feb 2, 2017 at 6:26 AM, Ron Kelley via TriLUG <trilug at trilug.org>
> wrote:
>
> > Brian,
> >
> > Specifically, what video card is this?  Wikipedia seems to indicate the
> > video card is 2009 vintage based on the “Cedar” chipset info.  Is that
> > correct?  If so, you might be better off getting something like an NVidia
> > GeForce 730 fan-less card with HDMI for about $60 (
> https://www.newegg.com/
> > Product/Product.aspx?Item=1FT-001K-00003&cm_re=nvidia_730-_-
> > 1FT-001K-00003-_-Product).  Then, you can use your HDMI-to-HDMI cable at
> > 2560x1440.  If you need more graphics horsepower, you can opt for the
> > 750-Ti card for about $150.
> >
> > I have a spare ATI card sitting on the shelf with a HDMI output.  If you
> > live close to apex, you can stop by and borrow the card to see if that
> > fixes your problem.
> >
> > -Ron
> >
> >
> >
> >
> > On Feb 2, 2017, at 1:20 AM, Brian McCullough via TriLUG <
> trilug at trilug.org>
> > wrote:
> >
> > I have been bothered for a while, ever since I bought and installed a
> > new 32-inch HP monitor, because it only seems to do 1920x1080, rather
> > than the native 2560x1440.
> >
> > I have been doing research tonight, and find that while X.0.log shows a
> > lot of information about the card and all, it is very informative about
> > the mode lines.  Incidentally, this is a Radeon Cedar-type board.
> >
> > At first, it shows a list of mode lines that include, and seem to
> > prefer, 2560x1440, but then say that the HDMI output is active, and it
> > will only deliver 1920x1080.
> >
> > Apparently, the DVI output is the desired one.
> >
> > OK, no problem.  I will get a DVI cable an attach that.
> >
> > Oops!   The card on the machine talks DVI, but this new monitor only has
> > two HDMI connectors and a DisplayPort connector.
> >
> > OK, so back to the research.
> >
> >
> > I find that if I want to plug a cable into my Apple laptop with a
> > DisplayPort connector and then into my monitor with a DVI connector, no
> > problem.  HOWEVER, I want the connection to go the other way.  Is this
> > possible?  The research says: probably not.  EXCEPT that the maximum
> > resolution that the adaptors that I have found is 1920x1080.
> >
> > NO improvement, even if the cable works the other way.
> >
> >
> > More research.
> >
> >
> > MAYBE I found an adapter that is designed for DVI on computer, DP on
> > monitor.
> >
> > But, again, the maximum resolution is 1920x1080.
> >
> >
> >
> > SOoooo.  The final question is, is there such a thing as a DVI to DP
> > adapter that will handle the native resolution of this monitor? Would a
> > different video card improve the situation?
> >
> > Is there another solution altogether?
> >
> >
> >
> > Thank you,
> > Brian
> >
> >
> > --
> > This message was sent to: Ron Kelley <rkelleyrtp at gmail.com>
> > To unsubscribe, send a blank message to trilug-leave at trilug.org from
> that
> > address.
> > TriLUG mailing list : http://www.trilug.org/mailman/listinfo/trilug
> > Unsubscribe or edit options on the web  : http://www.trilug.org/mailman/
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> > Welcome to TriLUG: http://trilug.org/welcome
> >
> > --
> > This message was sent to: Wes <wes at xitechusa.com>
> > To unsubscribe, send a blank message to trilug-leave at trilug.org from
> that
> > address.
> > TriLUG mailing list : http://www.trilug.org/mailman/listinfo/trilug
> > Unsubscribe or edit options on the web  : http://www.trilug.org/mailman/
> > options/trilug/wes%40xitechusa.com
> > Welcome to TriLUG: http://trilug.org/welcome
> >
> --
> This message was sent to: Dave Burton <ncdave4life at gmail.com>
> To unsubscribe, send a blank message to trilug-leave at trilug.org from that
> address.
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>