I bought an S34J550 (model number: LS34J550WQRXEN) for home office, both my private and work (Lenovo) notebooks are attached to it. No matter what I do, or which port I use, automatic source detection never works. It is always using the last source only, nothing else. I have to go behind the desk every evening to switch over manually (display is mounted on a VESA arm), which is very annoying. I even tried using more expensive display cables. Is there a firmware fix for this?
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