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June 16th, 2022 02:00

U3421WE, mouse lag

  • Hi, I'm using U3421WE monitor with different laptops, connected via USB-C. After some time of work I'm experiencing mouse pointer lag. Tried wireless and wired mice. 
  • Same problem with different mice. 
  • Same issue happens with 3 different laptops
  • Monitor replacement didn't help
  • Cable replacement didn't help

OS windows 10, windows 11

Any ideas?

Thanks. 

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June 16th, 2022 02:00

Hello, I see you are looking for technical assistance. If you need our help, you can start a private/direct message with us and we will be happy to assist you.

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June 17th, 2022 05:00

Open the U3421WE Menu- Others. What firmware is listed? I see M2B105 on the drivers site. Is yours M2B105 or newer?

The U3421WE has four USB-A ports. Disconnect all USB devices from all four USB-A ports.

* Test a single wired mouse on all four USB-A ports while using both Laptops. Does the lag happen on all four USB-A ports?

* Disconnect the wired mouse. Test only the single wireless mouse transmitter in all four USB-A ports while using both Laptops.. Does the lag happen on all four USB-A ports?

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