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April 15th, 2026 15:11
Samsung monitor UJ590 using 4k shows “Display port” message on Inspiron 3530 every hour or so
Hi,
I got an Inspiron 3530 laptop for my daughter, but it doesn’t have DisplayPort Alt mode. I also got a D3100 docking station. I’m using a Lenovo monitor with UHD, and the other one is a Samsung Viewfinity UJ590 using 4k. I’m using HDMI for the Lenovo monitor and DP for the Samsung monitor. The Lenovo monitor works fine, but the Samsung monitor sometimes shows a display port message and then it disappears, like if the monitor lost connection.
Here are the specs for everything I’m using:
- Inspiron 3530 black chassis
- Samsung Viewfinity UJ590
- D3100 docking station
- Cable used: UGREEN 16K@60Hz 80Gbps DisplayPort Cable 2.1 DP https://a.co/d/03pIxHVQ
I’ve updated Windows and run Dell’s command update. Everything is up to date. I connected the docking station directly to the wall socket. Also, I believe the DP cable is backwards compatible.
Any help you can offer would be greatly appreciated.
Thanks,
ejn63
10 Elder
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30.8K Posts
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April 15th, 2026 15:30
Two high resolution monitors on one USB connection exceed the bandwith of the USB port. If they work separately without issue (one monitor at a time) that's the issue.
If you want more than one high resolution monitor, you need a notebook with Thunderbolt capability and a Thunderbolt dock. The system you have doesn't have the bandwidth for what you're trying to do.
Tesla1856
8 Wizard
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17.5K Posts
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April 15th, 2026 15:34
Yes, run your nice Samsung 4K monitor on Display-Port.
Sounds like it's having trouble "sleeping". Check inside the Samsung's own menus for a "less extreme" version of Power-Saving. That was the setting-adjustment our new LG-4K UltraGears needed.