HP RGS – Support for ultra-wide resolution 7680x1080 (single Mosaic display)

[salome_ask]

Hi,

I am evaluating HP Z Remote Graphics Software (RGS) for a specific use case and would like to confirm whether it supports it before purchasing a license.

Here is my setup:
- Sender: an AWS EC2 instance (headless, no physical display)
- Receiver: an on-premises PC with 4 monitors configured as a single Mosaic surface via NVIDIA Mosaic, resulting in a single logical display of 7680x1080

I previously tested the same setup with HP Anyware (Teradici / PCoIP). As a reference, a first test at 3840x1080 worked perfectly. However, when I switched the Mosaic to 7680x1080 and connected to the EC2 instance, the remote desktop on the instance was capped at 4096x1080, which appears to be a hard protocol limit of PCoIP (4096x4096 pixels per display)

A 7680x1080 session is a hard requirement for my project. It is critical that the EC2 instance correctly picks up this resolution and that the protocol is able to deliver it back to the on-premises receiver at full width.
.

My questions are:
1. Does HP RGS have a maximum width limit per display at the protocol level? Specifically, can it handle a single display wider than 4096 pixels (e.g. 7680x1080)?
2. Does the RGS receiver correctly transmit the resolution of the local display to the sender, so that the EC2 instance desktop would extend to the full 7680x1080?
3. Is there any known limitation in the current version that would prevent this from working?

Additional environment info:
- Receiver OS: Windows 11
- Sender OS: Windows Server 2022 Datacenter (AWS EC2)

Thank you for your help.

[Akie1]

Hi!

Since you are on AWS, have you tried with Amazon DCV (it´s free for AWS users). Just got a thought about this since HP do recommend to try out other solutions if RGS doesn´t fulfill your needs. If you need more info reach out to us.

[salome_ask]

Hi!

Thanks for the suggestion! I actually already tried Amazon DCV, but unfortunately it's limited to 4096x4096 resolution, which doesn't meet our needs. I even discussed this directly with the AWS teams and they confirmed this limitation.

So we're still looking for a suitable solution. Any other ideas are welcome!

[Akie1]

Hi!

DCV can support higher resolutions, here is what you can try out;

You can get higher resolutions with the configuration below.

Linux:

sudo dcv set-config --section display --key display-encoders "['ffmpeg']"

sudo dcv set-config --section display --key codecs "['h264', 'mpeg1video', 'jpeg', 'lz4']"

Windows (powershell commands):

& "C:\Program Files\NICE\DCV\Server\bin\dcv.exe" set-config --section display --key display-encoders "['ffmpeg']"

& "C:\Program Files\NICE\DCV\Server\bin\dcv.exe" set-config --section display --key codecs "['h264', 'mpeg1video', 'jpeg', 'lz4']"

You need to restart the DCV server after this configuration.

[KellyRGS]

Hello,

I would like to get more details about your AWS EC2 setup.  Are you using a GPU?  If possible can you send me the completed POC template to the zcentral@hp.com email.  We have some new features coming out this month and may give you what you are trying to do.  Reference this post on the forum.  I can then update the forum with the final solution.  Also, could you send along a Receiver and Sender run the rgsbugreport on both sender and receiver and send those over as well.   RGSbugreport is located in the following directories:  Windows Sender - Program Files/HP/Remote Graphics Sender .  For the Windows Receiver it will be under Users/username/hpremote/rgreceiver.  I am going to go ahead and copy the details that I have for now so I can create a case on this issue.

Kelly

I am an HP employee.

[salome_ask]

Subject: Re: HP Z RGS – Pre-sales question on 7680x1080 resolution support

Hi Kelly,

Thank you for your prompt response.

I want to clarify the context to avoid any confusion: I have not yet installed HP RGS on either the sender or the receiver. I am currently in a pre-sales evaluation phase and trying to confirm whether RGS can technically support my use case before investing time in a full deployment.

For this reason, I am not able to provide rgsbugreport logs or fill in a support POC template — there is no running installation to report from yet.

My setup is:
- Sender: AWS EC2 instance (Windows Server 2022 Datacenter), with a GPU (NVIDIA T4)
- Receiver: on-premises PC (Windows 11) with 4 monitors configured as a single NVIDIA Mosaic surface, resulting in one logical display of 7680x1080 pixels.
In this architecture, HP RGS would serve as the bridge between the cloud (AWS EC2 sender) and the on-premises site (receiver).

The core question I need answered before proceeding is purely about protocol limits:

1. Does HP RGS support a single display resolution wider than 4096 pixels, specifically 7680x1080?
2. Does the RGS Receiver correctly transmit the local display resolution (7680x1080) to the Sender, so that the EC2 desktop adapts to that resolution?

For reference, I tested HP Anyware (PCoIP) on the same setup and hit a hard 4096-pixel width limit per display, which made it unsuitable for my project.

You mentioned new features coming out this month that might address this. Could you share more details about what those features cover? That information would be very helpful for my evaluation.

Thank you again for your help.

Best regards

[MeJz]

HP RGS can support 32k x 32k pixels, so that will not be an issue for you. 

The auto match resolution setting in RGS may not currently work for your specific 7680x1080 setup, but if you can get your AWS instance to hit that resolution, either as one display, or as multiple, HP RGS can remote it. 

Be sure to use the default HP3 mode in RGS. That is the proprietary 4:4:4 codec from HP. Don't use the AVC (Advanced Video Compression) as that is based on H.264 and will have lower resolution limits. 

[KellyRGS]

Hello

I chatted with the RGS development team and they did a little testing and came back with some feedback for you.  

1. HP RGS is capable of supporting larger than 4096 on a single display. RGS has two main video codecs:
   1. Advanced Video Compression has a limit 4096 per-display, so this will not work today
   2. HP3 (default), Advanced Video Compression is not selected, is an HP Codec that has a limit of 32K per-display
2. We are continuing to make improvements to how RGS Receiver requests resolutions and how the Sender handles these requests. Today there might be some limitations that will prevent the Receiver from automatically matching their specific setup. However they should be able to manually configure the sender to desired configuration and then connect.   

Additional questions the development team have are:

• What is the expected performance for this setup? 
• Estimated Bandwidth between Sender/Receiver
• What kind of content will be displayed on the sender?
• Does the sender also need act like a single Mosaic?

In their testing, they were not able to have RGS automatically match, but when they connected without having RGS match the resolution and layout, they could go in manually and setup the displays which worked well for them.  We do discuss how to do that in the user guide.

Testing the resolution
To avoid possible resolution-matching problems, test the resolution in advance using the following procedure:
1. Establish an HP RGS connection with the Do not change the Sender display(s) setting enabled.
2. When the connection is established, manually attempt to set the Sender’s resolution to match the Receiver’s resolution.

From testing, the white is the sender display settings and the black is the receiver display settings

that they did manually.

I will pass along your answers to their questions so that your use case can be further looked at by the development team.

Kelly

I am an HP employee.

[salome_ask]

Hello,

Thank you for the detailed feedback from the development team, this is very helpful.

Would it be possible to continue this discussion over email? That way I can CC relevant colleagues, share diagrams, and give you a clearer and more complete picture of the project requirements.

Should I use the zcentral@hp.com address for this?

Best regards

[KellyRGS]

Yes, please reach out to me referencing this post at the zcentral@hp.com email address.  Going this route will allow us to share and collect logs, etc.  Getting your feedback on RGS will be very much appreciated as we continue to evolve it.  We look forward to working with you on your proof of concept.

Kelly