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HP Recommended
HP ENVY 17.3 inch Laptop PC 17-ch0000 (23T01AV)

Hello, I am trying to daisy chain my "HP ENVY Laptop Model 17-ch0500sa" to two "Samsung F32TU870VR" 4K monitors via the thunderbolt port. The monitor connected directly to the computer is working. The 2nd monitor daisy chained to the first is blank. The "Thunderbolt Control Centre" has detected two devices are present. However, in the windows display settings only one monitor is detected. I have tried to drop the resolution to 1080, and also the refresh rate, and then pressed "Detect another display", but this did not work. Just dropping the refresh rate worked on my DELL PC, without dropping the resolution. My assumption was that this HP PC supported thunderbolt and daisy chaining of monitors. Is it possible to get the "HP ENVY Laptop Model 17-ch0500sa" to drive two 4K monitors via the thunderbolt port? If so what would I need to do, for example any additional configuration, driver updates etc. Thanks in advance for any help.

1 ACCEPTED SOLUTION

Accepted Solutions
HP Recommended

I got to the bottom of this myself in the end. The issue was that the standard thunderbolt cable that came with the Samsung monitors would only support 1 monitor, not 2 in a daisy chain. I guess the bandwidth capability of the standard cable was not enough. In case anyone else suspects their thunderbolt cable may not be up to the job, which may be the case with a cable supplied with the monitors, the spec I got to drive two 4K monitors was as follows.

"Intel Certified 40Gbps active thunderbolt 4 cable 2m with 100W charging and 8K video"

I only upgraded the cable between the PC and the 1st monitor. The cable between the 1st and 2nd monitor remained standard.

View solution in original post

3 REPLIES 3
HP Recommended

Hi @Gavin_P 

Welcome to HP Support Community. 

Thank you for posting your query, I will be glad to help you. 

 

I see that you are facing battery issue with your HP Envy Laptop.

 

Request you to please click on this link and follow the steps to test the battery.

 

If there is a failure ID, I request you to share the Failure ID with us.

 

I hope this helps.

Take care and have a good day.

 

Treeko

HP Support


I am an HP Employee

HP Recommended

I got to the bottom of this myself in the end. The issue was that the standard thunderbolt cable that came with the Samsung monitors would only support 1 monitor, not 2 in a daisy chain. I guess the bandwidth capability of the standard cable was not enough. In case anyone else suspects their thunderbolt cable may not be up to the job, which may be the case with a cable supplied with the monitors, the spec I got to drive two 4K monitors was as follows.

"Intel Certified 40Gbps active thunderbolt 4 cable 2m with 100W charging and 8K video"

I only upgraded the cable between the PC and the 1st monitor. The cable between the 1st and 2nd monitor remained standard.

HP Recommended

@Gavin_P 

 

Good to know that issue is resolved.

Feel free to contact us in the future if you need any assistance.

Sandytechy20
I am an HP Employee

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