"My expectation is to have success message after the LCD Conditioning process is done."
Nope. Your expectation is incorrect. That is not how it is designed.
I just tested LCD Conditioning on three different Dell monitor models (U3011, 2407WFP, S2740L). None of them had a time out for LCD Conditioning. You had to press a monitor button to stop it. There is nothing wrong with this monitor.
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Run the PC pre-Windows diagnostics
Where do I find my Dell PC Service Tag or Express service code?
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