HP USB-C Dock G5 Video Over USB-C Port

[NormKelly]

I have an HP Envy 17 laptop with a USB-C/Thunderbolt port. This is connected to an HP USB-C Dock G5, and I want to connect my 3840 X 1600 monitor to the USB-C port of the Dock. However, I can't seem to get it to work. It occasionally tells me that the video may be limited, but I never get any display at all, and the monitor doesn't get detected in Display Settings. 

I am running the latest Windows 10 64-bit, I also just updated the BIOS to the latest version. I have also updated the dock firmware and drivers to the latest.

Can anyone help?

Thanks,

Norm

[Deep_World]

Hi @NormKelly,

Welcome to the HP Support Community!

Thanks for reaching out!

We're thrilled to have the opportunity to assist you and provide a solution.

Sorry for the inconvenience caused don’t worry let me help you.

To better understand the issue, could you please provide a few more details?

1. What is the exact HP Envy 17 model number?
2. Are you connecting the monitor using:
   • USB-C → USB-C
   • USB-C → DisplayPort
   • USB-C → HDMI
3. Does this same monitor work:
   • When connected directly to the laptop (bypassing the dock)?
   • At a lower resolution (e.g., 3440×1440)?
4. Does the dock successfully drive any other external monitor?
5. Are you using the original HP 120W/230W dock power adapter?

…the dock shares DisplayPort bandwidth across ports, and not all USB-C display paths support DP 1.4 with DSC reliably.

The “video may be limited” message strongly suggests a DisplayPort bandwidth or signaling fallback.

Targeted troubleshooting steps

1. Force DisplayPort instead of USB-C video

If your monitor has DisplayPort input:

• Use USB-C (dock) → DisplayPort (monitor) cable
• Avoid USB-C → USB-C for now (this often fails at ultrawide resolutions via docks)

This alone fixes the issue in many cases.

2. Test with only ONE display connected

• Disconnect all other monitors from the dock
• Plug in only the 3840×1600 monitor
• Reboot with the dock connected

3. Lower the refresh rate

Once (or if) the monitor appears:

• Set it to 3840×1600 @ 60 Hz
• Avoid 75 Hz / 100 Hz initially

High refresh ultrawide displays often fail to negotiate correctly through docks.

4. Test direct laptop connection

This is critical:

• Connect the monitor directly to the laptop USB-C/Thunderbolt port
• If it works directly but not via the dock:
  → The issue is dock bandwidth, not the laptop or monitor

5. Check GPU and Thunderbolt driver versions

• Update:
  • Intel iGPU driver
  • NVIDIA GPU driver (if present)
  • Thunderbolt controller driver (from HP)

I hope this helps.

I'm glad I could help! 😊 If this resolved your issue, please mark it as "Accepted Solution" and click "Yes" on "Was this reply helpful?" Your feedback not only keeps us going but also helps others find the solution faster! 

Take care and have an amazing day ahead! 

Best regards,

Deep_World

[NormKelly]

First of all, thank you very much for your reply!

The laptop is an HP ENVY - 17m-ce1013dx. I am trying to connect the monito using a USB-C to USB-C cable from the dock to the monitor. I don't have a USB-C to DisplayPort cable, but I did just order one.

I have already connected the monitor USB-C connector directly to the USB-C port on the laptop and it works fine. Also, if I connect the monitor's HDMI port to the dock's HDMI port, everything works fine. Therefore, the dock is working fine using the HDMI port with the same monitor and resolution, and this is the only monitor that I am using. I haven't tried using a lower resolution, because I can't get the monitor to appear when connected USB-C to USB-C from the dock.

I am also using the original dock power supply. and I have installed all of the latest drivers from Intel, nVidia and HP.

In your #4 in your reply, you said " The issue is dock bandwidth, not the laptop or monitor". However, the dock must have sufficient bandwidth, because it works using the HDMI connection. In addition, the specifications claim that it has sufficient bandwidth for this monitor. Therefore, I don't understand...

If I buy a USB-C to DisplayPort cable, will the USB hub in the monitor work through the DisplayPort cable or do I have to add a second USB cable (which is what I am trying to avoid)?

Thanks again for all of your help!

[Deep_World]

Hi @NormKelly,

Thanks for your response.  

Please note, The monitor works USB-C → USB-C directly from the laptop

The dock works HDMI → HDMI to the same monitor at the same resolution

You’re using the original dock power supply

All HP, Intel, and NVIDIA drivers are fully up to date

this strongly suggests that the issue is not a general bandwidth limitation, nor a faulty dock or monitor, but rather how the dock is handling DisplayPort Alt Mode over USB-C when chaining through the dock.

About your question on USB-C → DisplayPort and the USB hub

This is an important point, and you’re thinking about it correctly:

A USB-C → DisplayPort cable only carries video and audio

It does not carry USB data

This means the USB hub in the monitor will NOT work over DisplayPort alone

So yes if you use a USB-C → DisplayPort cable, you would need to connect a separate USB cable (USB-B or USB-C upstream, depending on the monitor) from the monitor to the dock or laptop to enable the monitor’s USB hub. Unfortunately, there’s no way around that limitation with DisplayPort.

I hope this helps.

I'm glad I could help! 😊 If this resolved your issue, please mark it as "Accepted Solution" and click "Yes" on "Was this reply helpful?" Your feedback not only keeps us going but also helps others find the solution faster! 

Take care and have an amazing day ahead! 

Best regards,

Deep_World