Fix Horizontal Line on Computer Screen

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Discussion Overview

The discussion revolves around the appearance of a thin black horizontal line on computer screens, specifically in relation to laptops. Participants explore potential causes, including hardware issues related to the monitor or video card, and suggest various troubleshooting methods.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant notes the possibility that the line could be a shadow from stabilizing wires in Trinitron monitors, suggesting it may not be a significant issue.
  • Another participant describes their experience with a similar line on an older laptop, indicating it may be a sign of physical damage to the screen.
  • A participant explains that the video card serves as the interface between the CPU and monitor, proposing that a defective monitor row driver could be the issue.
  • One participant suggests applying pressure to the screen frame to see if the line persists, indicating a potential connection issue.
  • A later reply confirms that applying pressure temporarily resolved the issue, raising questions about the underlying cause.
  • Another participant recommends further troubleshooting steps, including disassembling the display and checking connectors, as suggested by external sources.

Areas of Agreement / Disagreement

Participants express varying opinions on the cause of the line, with some suggesting it may be a hardware issue while others propose it could be related to the video card. The discussion remains unresolved regarding the definitive cause and solution.

Contextual Notes

Participants mention different laptop models and experiences, indicating that the issue may vary based on specific hardware configurations. There are unresolved assumptions about the nature of the problem and the effectiveness of proposed solutions.

Eezekiel
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Recently a thin black horizontal line appeared across my computer screen. At first it was there for a while then went away, now it seems to be permanently there. Anyone know why it is there or how to get get rid of it.
 
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Do you happen to have a Trinitron monitor? Sony's monitors have two very thin lines that are shadows that get projected on the screen. They are shadows of the stabilizing wires the monitor has. I noticed them right away, but after a day or so, I don't even see them any more.

If that's not what it is, can you tell if it is monitor or video card related?
 
I have an HP pavilion zv6000 laptop. The line is thin but very noticable. What is video card?
 
I also have an old HP (omnibook 900) laptop with a vertical line down the screen. At first it wasn't noticeable; it seemed to fade in and out. Then as time went by, the line became a little broader and the color seemed to be white with red boundaries. Its fairly broad; about 1/16 of an inch.

I tried seeing if there was a problem with my video connector, but it seemed okay. So maybe its my video card. I tried it was an external monitor, the secondary screen displayed fine. So I concluded that its a problem with the screen - physically damaged. Yup, my lappy has taken quite a beating over the years.
 
Last edited:
Eezekiel said:
I have an HP pavilion zv6000 laptop. The line is thin but very noticable. What is video card?

The video card is the hardware interface between the CPU and the monitor. For most practical purposes you might consider it to be a computer itself.

Your problem sounds like one of the monitor row drivers is defective.
 
Does the line persist if you apply a little stress to the frame of the screen?

http://www.laptoprepair101.com/laptop/2006/08/17/bad-video-on-lcd-screen/all-comments/
 
Last edited by a moderator:
Yes as a matter of fact the line completely disappeared simply by applying some pressure as to stretch the screen. However the line came back again about 2 min later. What is the deal?
 
Eezekiel, it seems like a bad screen. But to be sure, have you tried the other suggestions that I posted or from the link that NoTime posted? According to one of the posters, disassembling the display setup, along with fiddling with the connectors and the inverter board has fixed the problem.
 

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