Member Avatar for guroo

Hi I have an Acer monitor which has developed a pixel wide green line down the centre of the screen. Can anyone suggest what I can do myself to fix this?
Thanks in advance

Guroo

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  • Latest Post Latest Post by racechef1957

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A single, pixel‑wide vertical green line across the whole screen is usually not an isolated "stuck pixel." It most often indicates a column/driver or timing‑controller (T‑CON) fault, or a bad video connection, rather than a few individual dead subpixels. As and noted about pixel issues and color channels, the visible symptom can look like only green is active — but a whole vertical column points to panel/controller hardware or cabling, not a software fix.

Quick diagnostic checklist (do these before opening the monitor):

  • Disconnect any splitters/adapters (for example TripleHead2Go) and run the monitor alone — saw the line vanish when the monitor was isolated, which implicates the adapter/cable or GPU timing.
  • Swap video cables and ports (DVI/HDMI/DP) and try a different cable.
  • Attach the monitor to another PC or laptop. Capture a screenshot on the PC and compare it to a camera photo of the same screen: if the screenshot contains the line, the GPU/output is the source; if only the photo shows it, the monitor hardware is at fault.
  • Open the monitor OSD or view BIOS/POST: if the line is visible on menus or during POST/self‑test, it is almost certainly inside the monitor.
  • Reseat external connectors; if comfortable and out of warranty, reseating internal LVDS ribbons can sometimes help — but only with power removed and an awareness of safety/ESD risks.

Repair options and cautions:

  • Replacing the external cable or adapter is cheapest; column/T‑CON or LVDS cable replacement often fixes vertical lines but requires opening the case. Panel replacement is usually expensive. Check warranty/RMA first. Opening the display has risks — avoid if unfamiliar with electronics and high voltages.

Note: battery power is not a plausible cause of a single vertical green line (clarifies /). If the fault appears on the monitor OSD, plan for repair or replacement rather than pixel‑fixing utilities.

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All 6 Replies

Member Avatar for BlackSwan

Hi Guroo ,

it seems to be "stuck pixels" problem. Take a look at http://en.wikipedia.org/wiki/Defective_pixel. This article give you some possible solutions, but it's not 100% sure it can be fixed.

Regards,

Black Swan

Member Avatar for jermaghs07

If you don't know how an LCD monitor works i will try to explain... there are three colors just like a CRT, Red Blue and Green, that are projected onto the screen. In some instances colors will stop working like in your case the red and blue quit and the green stays on. there really is no way to fix this.

ALL companies have a dead pixel policy. If there are more that 5(i think) dead pixels they will replace the monitor(depending on how old it is). in your case there are prolly about 768 dead pixels(depending on the size of the monitor). If it is still under the manufacturer warranty they will replace it.

Member Avatar for Maltesers786

I have a fine green line on right side of monitor. Is it repairable or is it due to the battery

Member Avatar for Master Rattley

I have a fine green line on right side of monitor. Is it repairable or is it due to the battery

How could it be related to the battery???

Member Avatar for racechef1957
Vertical Green Line

Green Vertical Line.I have 3 Dell S2209W monitors 22" running off a Triplehead2Go Digital and today came along a fine bright green line on screen 3. 3 hours ago it dissapeared, thankfully. Seeing that in this situation I must have matching monitors, I need to resolve this as Dell no longer sells them. There are no drivers available for windows 7. Earlier I diconnected #3 and ran it alone and it did fine. Then it came back (the line) about an hour after reconnecting the screens. Any ideas accepted.

Edited by racechef1957
Member Avatar for racechef1957

Almost forgot the flucuating fan reading. Nothing to do with the monitor thing,

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