Re: Odyssey Neo G7 - Triple Monitor Display - Samsung Community

JBlack002 · ‎01-26-2023

I recently purchased 3 Odyssey Neo G7 32" monitors (4k) to replace 3 Odyssey G7 32" monitors (1440p) I've had for a couple of years. I use the monitors as a triple display on my driving simulator. I run a Windows PC. I can only get a display on 2 of 3 of the Neo G7 4k monitors. All monitors work individually, but only a combination of 2 of 3 present a display when attempting to display to all 3 simultaneously. The monitors are each connected individually via DisplayPort 1.4 cables to a corresponding port on the RTX4090 graphics card. Windows recognizes the 3 monitors (in display settings) and that they are connected to the graphics card (Nvidia RTX4090), but one monitor is noted as "inactive". The RTX4090 is not the problem. I tried a different RTX4090 and get the same result. I'm convinced it's something with the Neo G7 4k. Incidentally, I never had any issue when I previously ran triple monitors with the previous G7 1440p monitors.

The Neo G7 4k is described as "gaming monitor" just as the previous G7 1440p was. Both 32" with 1000R curve with focus on PC gaming. The Neo G7 is an enhancement with greater resolution and HDR support. Otherwise, they are marketed in a similar fashion. It will be a huge disappointment if the final word is that the Neo G7 4k cannot support triple displays. The marketing materials provide no such disclaimers.

I have discussed this with Samsung via live chat (#89887375). I was supposed to hear back, but so far nothing.

ddaniel51 · ‎01-26-2023

What refresh rate are you trying to push to the monitors?

Here is a link to a 3 x 4k review. Pay attention to the refresh/fps rates.

https://youtu.be/dYOcJ1olIlU

Here is Nvidia's published specifications:

Pay attention to footnote #4 concerning multiple monitor use.

GeForce RTX 4090

GPU Engine Specs:	NVIDIA CUDA® Cores	16384
	Boost Clock (GHz)	2.52
	Base Clock (GHz)	2.23

Memory Specs:	Standard Memory Config	24 GB GDDR6X
	Memory Interface Width	384-bit

Technology Support:	Ray Tracing Cores	3rd Generation
	Tensor Cores	4th Generation
	NVIDIA Architecture	Ada Lovelace
	NVIDIA DLSS	3
	NVIDIA Reflex	Yes
	NVIDIA Broadcast	Yes
	PCI Express Gen 4	Yes
	Resizable BAR	Yes
	NVIDIA® GeForce Experience™	Yes
	NVIDIA Ansel	Yes
	NVIDIA FreeStyle	Yes
	NVIDIA ShadowPlay	Yes
	NVIDIA Highlights	Yes
	NVIDIA G-SYNC®	Yes
	Game Ready Drivers	Yes
	NVIDIA Studio Drivers	Yes
	NVIDIA Omniverse	Yes
	Microsoft DirectX® 12 Ultimate	Yes
	NVIDIA GPU Boost™	Yes
	NVIDIA NVLink™ (SLI-Ready)	No
	Vulkan RT API, OpenGL 4.6	Yes
	NVIDIA Encoder (NVENC)	2x 8th Generation
	NVIDIA Decoder (NVDEC)	5th Generation
	AV1 Encode	Yes
	AV1 Decode	Yes
	CUDA Capability	8.9
	VR Ready	Yes

Display Support:	Maximum Resolution & Refresh Rate (1)	4K at 240Hz or 8K at 60Hz with DSC, HDR
	Standard Display Connectors	HDMI(2), 3x DisplayPort(3)
	Multi Monitor	up to 4(4)
	HDCP	2.3

Card Dimensions:	Length	304 mm
	Width	137 mm
	Slots	3-Slot (61mm)

Thermal and Power Specs:	Maximum GPU Temperature (in C)	90
	Idle Power (W) (5)	19
	Video Playback Power (W) (6)	25
	Average Gaming Power (W) (7)	315
	Total Graphics Power (W)	450
	Required System Power (W) (8)	850
	Supplementary Power Connectors	3x PCIe 8-pin cables (adapter in box) OR 450 W or greater PCIe Gen 5 cable

1 - Up to 4K 12-bit HDR at 240Hz with DP 1.4a + DSC or HDMI 2.1a + DSC. Up to 8K 12-bit HDR at 60Hz with DP 1.4a + DSC or HDMI 2.1a + DSC.

2 - As specified in HDMI 2.1a: up to 4K 240Hz or 8K 60Hz with DSC, Gaming VRR, HDR

3 - DisplayPort 1.4a

4 - Multi Monitor:

4 independent displays at 4K 120Hz using DP or HDMI
2 independent displays at 4K 240Hz or 8K 60Hz with DSC using DP or HDMI
Other display configurations may be possible based on available bandwidth

5 - Idle power measured with GPU running at idle at the Windows desktop for 10 minutes

6 - Video playback power measured using AV1 codec

7 - Average gaming power is measured across 22 games at 4K, 1440p, and 1080p

8 - Minimum is based on a PC configured with a Ryzen 9 5900X processor. Power requirements can be different depending on system configuration.

Note: The above specifications represent this GPU as incorporated into NVIDIA's Founders Edition or reference graphics card design. Clock specifications apply while gaming with medium to full GPU utilization. Graphics card specifications may vary by add-in-card manufacturer. Please refer to the add-in-card manufacturers' website for actual shipping specifications.

JBlack002 · ‎01-27-2023

I'll start by clarifying my PC set up. It's a new high-end build:

CPU: i9 13900, GPU: MSI Suprim X RTX4090, MB: MSI z790 Carbon WiFi, RAM: 64GB (2x32) DDR5, PSU: Corsair AX1600i, Storage: Samsung 990 Pro 2TB M.2 SSD and Samsung 870 EVO 4TB SATA SSD.

I built a high-end PC specifically to handle the demands of triple 4k monitors. Windows, bios and all drivers (including Nvidia) are up to date. The only overclocking consists of enabling the XMP profile, which gives me a RAM speed of 6000MT. The PC works fine and is stable. If this PC is inadequate for triple 4k, then nothing currently available today is.

I had previously watched the YouTube video you referred (I appreciate it nonetheless). I've also watched other videos that successfully demonstrate the use of triple 4k monitors with an RTX4090. I will say, however, I've not watched a video where the monitors are the Samsung Odyssey Neo G7 4k. Just to be sure, I contacted a Samsung sales representative yesterday and received confirmation that the Odyssey Neo G7 should work in a triple monitor configuration.

To your question regarding frame and refresh rates, I understand the relevance when it comes to settings within specific game titles. Some titles are more demanding and require you pull back the quality settings. I'm not sure that's my issue. My issue is merely trying to get the 3 monitors to generate displays when connected in a triple configuration. The native, max refresh rate of the Neo G7 is 165hz. To your point, I have previously set each monitor to its lower refresh rate of 120hz to see whether it made a difference. It did not. I continue to get the same result. Only 2 of 3 monitors are active in Windows and generate a display. The third is inactive. One might think the inactive monitor is defective, but it doesn't seem to be the case. For example, if I pull the DisplayPort cable from the RTX4090 for one of the active monitors, the previously inactive monitor will become active. In fact, I've tried various combinations of plugging, unplugging monitors and get the same result regardless of the combination. Next, one might think it's a defective RTX4090. I tested this by installing a different, new RTX4090 and get the same result. Finally, I tried a combination of different triple monitors. I used one of the Neo G7 4ks along with a one older G7 (i.e., the 240hz, 1440p model) and one 35" ultrawide Asus 1440p. These are just some additional monitors I had available. Windows recognizes all 3 monitors (despite being different models) and I can get an active triple display.

One more interesting point. I previously ran triple displays using Samsung Odyssey G7 monitors (240hz, 1440p) on an older PC (i9 10900, RTX3080, 32GB Ram). I ran this setup for about 2 years with no issues. As I mentioned above, I upgraded the PC with the intent of running triple 4k monitors. I was curious what would happen if I connect the old computer to the the triple Neo G7 4ks. I got the same result. 2 of 3 monitors are active, 1 is inactive. I wish I had kept all 3 of the older G7 1440p monitors so that I could test them with the new PC, but I gave 2 away to family over Xmas.

I feel like I'm chasing my tail at this point. I had a long call with a Samsung phone technician yesterday and made no headway. This included me giving the technician remote access to my computer so he could try to extend the display to the 3rd monitor. No success. He said I need to resolve my issue by calling Microsoft. The fact I can get a triple display with a different combination of monitors leads me to think it's not Windows. I will call Microsoft to be sure, but I'm not hopeful of a resolution.

Insomonomics · ‎01-27-2023

I am having the same problem, except I’m trying to connect an LG C2 42” television along with two Neo G7’s. I also have an RTX 4090, and am using an i7 13700K CPU with 6400 DDR5 RAM. Even after changing the refresh rate and display resolution lower, I cannot get the LG C2 to register as the third monitor. However, when I unplug one of the Samsung Neo G7’s, the LG C2 comes to life and displays as normal.

I’m not sure what the solution is. I’ve already gone through 1 2.1 HDMI Cable, and Two Display Port 1.4 to HDMI 2.1 cables. I don’t think it’s the cables, my GPU, my LG C2, or anything. It has to be the monitor or Microsoft.

JBlack002 · ‎01-27-2023

I’m sorry to hear you have a similar issue, but I appreciate you sharing. There has to be an answer to this. Have you tried connecting 2 other monitors along with one Neo G7? I tried this and could get an active triple display.

I hope Samsung is monitoring this post and can add some suggestions.

Makes me wonder if a firmware update is needed to address this issue.

Insomonomics · ‎01-27-2023

Unfortunately I don’t have two other monitors to attempt this with, otherwise I would try. Just thought I’d post here to let you know you’re not the only one encountering this issue. I’m glad to know it’s not just me!

Tharn Jaggar · ‎02-21-2023

Hi,

sorry to jump in, found this thread because I'm looking at exactly the same setup... New computer Intel 13900KS, RTX4090 and 3 Neo G7 monitors... so now I'm a bit wary ordering those monitors. Did you get any progress in the past month ?

And a different question: is the curvature of the Neo G7s fine to do triple monitors? I read people complaining it's too much curved for that purpose.

Hope you fixed the problem!

JBlack002 · ‎02-22-2023

I could not determine a resolution to my problem. Got no help from Samsung. Very disappointing since I was looking forward to the triple Neo G7 4k monitors for my race sim. I did come across others who have experienced the same issue with these monitors. I sent mine back for a refund and reverted back to my original Samsung G7 triple monitors (i.e., the 1440p, 240hz monitors). Regarding the curve, I have absolutely no issue on my race sim. I personally think the curve adds to the emersion.

Tharn Jaggar · ‎02-22-2023

Sweet setup, congrats!

I was worried that the 1000R curvature would be too much for triple screens and 1500 or 1800R would fit better, but it doesn't look that way at all in fact. It even shows maybe a more natural curve. What's more or less your viewing distance, and what minimum distance would you say is comfortable.

A very shame that Neo G7 problem... those screens are so great. I wonder if the Neo G8 would face the same issue. (can only suppose that yes). I'd prefer the G7 though. The 2000 nits would be overkill for me.

JBlack002 · ‎02-23-2023

My viewing distance to the center monitor is 26" (with 32" monitors). I set the side monitor arm angles at 57 degrees. Gives me around 165 degree FOV. Within the software apps (e.g., iRacing) I set the distance to the monitor at 500mm (regardless of the what the actual distance is). I learned of this tip from a YouTube video and agree it's results in the best overall display. I would have gone with the Neo G8 due to the higher 240hz refresh; however, I watched video reviews and noted the reviewers complaining of scan lines at 240hz. They had to put the monitors in 120hz to eliminate the lines, which defeats the benefit for sim racing. They didn't have scan line issues with the Neo G7 at it's native max 165hz. Thought it was the way to go. Oh well.

Original topic:

Odyssey Neo G7 - Triple Monitor Display

GeForce RTX 4090