Why is my 3rd monitor not being detected?

dagmon75
dagmon75 Member Posts: 2 New User
edited January 2023 in Monitors

I have a Dell Inspiron 3583 laptop, 2 external monitors (Acer H236HL and KA242Y), and REI 1.2 HDMI Splitter w/EDID. All HDMI cables work. I've independently tested as well. Windows can't identify/detect a 3rd monitor even when set to "extended" mode. It only shows my laptop and identifies BOTH my externals as #2. From my viewpoint, both external monitors are mirrored. I obviously don't want that. I want to utilize each monitor to display its own screen for work efficiency. I'm not here running a karaoke or a DJ business. (only reason to have mirrored in most cases). What's the hang-up? Thanks.

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