Question How do I enable 120Hz refresh rate?

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swchoi89

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Sep 9, 2013
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I have a rather older monitor S23A700D samsung monitor but I used to be able to display 120Hz on this (used to play on 120FPS before).

I went to the display settings but there isn't even an option to choose 120Hz. I'm capped at 60Hz.

I'm plugged in using HDMI cable to my new laptop (Ryzen 7 5800H + RTX 3060) and using my Samsung monitor as the primary (and the only display).
 
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swchoi89

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Sep 9, 2013
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VirtualLarry said:

Amazon.com: Samsung 700 SERIES S23A700D 23-Inch Screen LED-Lit Monitor : Electronics

Amazon.com: Samsung 700 SERIES S23A700D 23-Inch Screen LED-Lit Monitor : Electronics
www.amazon.com

Hmm, Amazon confirms 120Hz.

Advanced Display Properties for that monitor won't let you select 120.0Hz?

Maybe you need to "hard reset" the screen, if it's EDID info isn't being read proprly by the PnP Monitor driver.
Click to expand...

Yea it came with 3D glasses and everything so I know it works.

Yea, in the drop down, 60Hz is the highest, I don't know why. How does the hard reset work?
 
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VirtualLarry

VirtualLarry

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Aug 25, 2001
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shut monitor off
disconnect from BOTH power and display cable(s)
attempt to power on a few times (drains caps)
reconnect
power on

The question is, does it report it's res/refresh, as 1080P/120, or 1920x2160/60? (One of several "3D monitor" frame formats)
 
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swchoi89

Senior member
Sep 9, 2013
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VirtualLarry said:
shut monitor off
disconnect from BOTH power and display cable(s)
attempt to power on a few times (drains caps)
reconnect
power on
Click to expand...

Just tried and doesn't work.

It does recognize the model number and it shows S23A700D in the Advanced Display section.

I'm running Windows 11 - not sure if that makes a diff

Edit - are there older HDMI cables that can't support 120Hz? I wonder if I need to buy a new one because I can't remember when I bought this cable.
 
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VirtualLarry

VirtualLarry

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Have you tried a custom res. in NV CPL? (But don't blame me if something burns out in testing.)

Have you contacted the monitor mfg and asked about Win11 compatibility and 120Hz? Surely they must have sold more than one of these things...
 
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VirtualLarry

VirtualLarry

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swchoi89 said:
Edit - are there older HDMI cables that can't support 120Hz? I wonder if I need to buy a new one because I can't remember when I bought this cable.
Click to expand...
In short, yes, but generally, that wouldn't affect the EDID info, and thus your choices of refresh and resolution presented. You would just get occasional black screens / dropouts.
 
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igor_kavinski

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Jul 27, 2020
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Start trying resolutions from 720p and go up. At each resolution, see what refresh rate options become available in Display properties.

It may also help to use a 4K HDMI cable.
 
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VirtualLarry

VirtualLarry

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mastertech01

mastertech01

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On my LG you cant use the HDMI to get 144HZ , you have to use the display port cable. Not sure if you have the same issue. On mine you can only get 99 hz with HDMI
 
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Zoozuu

Zoozuu

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Oct 21, 2020
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some displays have that issue but I think his problem is the cable isn't high enough bandwidth. I can easily display past 165hz with just a hdmi cable. doing that right now with a intel nuc and a hdmi.

EDIT: was to lazy and dumb to actually read all of it. says it worked before.. hmm

is it disabled in the settings on the monitor? I even have a factory reset on mine have you tried that?
 
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swchoi89

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Sep 9, 2013
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swchoi89

Senior member
Sep 9, 2013
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mastertech01 said:
On my LG you cant use the HDMI to get 144HZ , you have to use the display port cable. Not sure if you have the same issue. On mine you can only get 99 hz with HDMI
Click to expand...
Are you talking about those bulky plug (the RGB port or whatever)? I need an adapter for it because my laptop doesn't have those ports (neither does it have the DVI port)
 
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swchoi89

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Sep 9, 2013
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Zoozuu said:
some displays have that issue but I think his problem is the cable isn't high enough bandwidth. I can easily display past 165hz with just a hdmi cable. doing that right now with a intel nuc and a hdmi.

EDIT: was to lazy and dumb to actually read all of it. says it worked before.. hmm

is it disabled in the settings on the monitor? I even have a factory reset on mine have you tried that?
Click to expand...

I don't think so. To be fair, last time it produced 120Hz was on my old desktop where I probably used DVI cable instead of HDMI back then, maybe that's why?

Went to device manager, and it's not disabled or anything
 
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Zoozuu

Zoozuu

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Oct 21, 2020
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ah so this hdmi cable is most likely suspect then? I would say it just doesn't support it due to needing more bandwidth. (*the cable not the port or hdmi itself) like I said earlier.. hdmi supports 120hz aswell.. DisplayPort just supports more bandwidth over hdmi.

*get a higher bandwidth cable (*displayport or hdmi) also 3D stuff takes more bandwidth

EDIT: if you paid very little for your hdmi cable than that means it is probably limited to 60hz 1080p with no data transfer.
 
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swchoi89

Senior member
Sep 9, 2013
200
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Zoozuu said:
ah so this hdmi cable is most likely suspect then? I would say it just doesn't support it due to needing more bandwidth. (*the cable not the port or hdmi itself) like I said earlier.. hdmi supports 120hz aswell.. DisplayPort just supports more bandwidth over hdmi.

*get a higher bandwidth cable (*displayport or hdmi) also 3D stuff takes more bandwidth

EDIT: if you paid very little for your hdmi cable than that means it is probably limited to 60hz 1080p with no data transfer.
Click to expand...
So something like this would be ok right? It's not my monitor that's not supporting the 120Hz through HDMI because it's old

 
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