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May 18th, 2021 10:00
U4021QW, Auto KVM not reliable
Hello,
Auto KVM feature of my new U4021QW is buggy. I have Lenovo T480s laptop connected with Thunderbolt and PC connected with DP+USB-B, keyboard, mouse and webcam connected to the monitor. Both PC and laptop has Fedora 34 installed.
Everything works most of the time while both computers are unlocked and all three devices (camera, keyboard and mouse) follows selected input on monitor and reconnecting successfully. Problems are usually started when one of the computers is locked by timeout or manually and all three USB devices got "stuck" to last used computer.
The only way to unlock/unstuck is to physically re-connect Thunderbolt on a laptop and auto KVM will work for some time after it.
Both laptop and PC have "always on" power profile and the problem with the monitor which not re-connecting USB devices, it can be easily seen by led lightnings flashing.
MaVeRicK_TM
2 Posts
0
August 16th, 2022 03:00
Did you try with the USB port with number 11? For me it is working much better, when I'm using Microsoft Sculpt Mouse and Keyboard. It is not laggy and switches faster. These USB ports should be same but for some reason they work differently.
MaVeRicK_TM
2 Posts
0
August 16th, 2022 03:00
It is strange because it seems that USB bundle works differently for the Thunderbolt port and the HDMI. On Thunderbolt mouse and keyboard works flawlessly on every port. For HDMI/USB only on port number 11. Looks like after monitor switches to HDMI, USB receiver has lower range.