Monitor has colored line at top

Hey, Guys! I'm new here and i have a problem with my monitor. There's a pink line on the top of the screen. I think that it can be something about the BIOS. Could anyone help me?

I'd suggest exploring Graphics drivers first. What Graphics card or cards are you using?


Thanks for all the support.

(1) It's a laptop. The model is Inspiron 5557.
(2) It's a laptop. I don't use an external monitor, but I tested with my TV using HDMI.
(3) It's a Nvidia Geforce 930 M
(4) I've tested with an external monitor and the pink line disappeared. Instead of the line, now there's a kind of a line that reflects (if I put the mouse pointer over there, the line shows its reflection). I don't know if it's normal.

I was a windows user and finally I could come to linux. The pink line was there at windows and now it still at linux. I guess that was some upgrade that I probably did. But It's strange, because I install Zorin 16 and it erased all the computer. That's why I thought that it might be something about the bios.

Thanks again for all the support.

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I run Dell's LCD built-in self-test and there's no issues. I also run Dell's ePSA pre-boot diagnostics and there was no problem as well (Only my battery health). Well, i really appreciate all support. Thank you so much.

The issue was present on Windows, as well?

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Nope. You seem to have it well in hand and everything you suggested is the same as in my head- beyond that, I have nothing.


I did it and it didn't work out haha

Something interesting is that when I was running the tests, the pink line just disappeared. I'm really confused about my laptop.

Ok! I'll let you know if i find out something. Thanks!


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