I noticed a thin vertical black line on my Dell laptop screen (model: Inspiron 15, 3 years old) that appeared after I moved the laptop. It’s present on startup (BIOS screen too) so I suspect hardware, but I’ve already updated display drivers and tested with an external monitor (external works fine). What does a persistent black line on laptop screen dell usually mean loose ribbon cable, damaged LCD, or GPU issue? Please recommend step-by-step checks I can do safely at home, plus whether I should expect a simple fix, need panel replacement, or should send it for warranty/repair (and rough cost estimates if anyone’s replaced one recently).
Why is there a black line on laptop screen dell and how can I fix it?
- Thread starter ronmurphy
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