Black or single-colored lines on LCD screens are caused by a lot of different issues, but if the standard fixes outlined in the flickering section above don’t fix them (check your video and power cables for problems, install new drivers), it’s probably a physical defect in the screen itself. It’s probable that either the software component (the graphics driver) or the graphics card itself is where the problem is located. Some users have reported vertical and horizontal lines on laptop, covering half of the screens. Most LCD monitors use either 59 or 60 hertz, though 75Hz, 120Hz, and 144Hz are also found on premium monitors. Join 350,000 subscribers and get a daily digest of news, geek trivia, and our feature articles. There are various techniques for this, ranging from physically “massaging” the screen panel itself to running programs that rapidly cycle a portion of the screen through the color spectrum. But misleadingly easy as they might seem, there’s a lot of stuff going on inside that blank plastic case…and a lot of stuff that can go wrong. Will be away from home for a few days, so will try this when I get back. 1. If yes then it can … Verify that the cable in use is secured correctly at both the external device and the TV. As TV gets old, you might get cracks on the cable. Before the system starts booting, you’ll see a screen. If your monitor has a visible crack, a large discolored area, or a black/multicolored spot that doesn’t align with the pixel grid, it’s been subjected to physical trauma and the LCD panel is damaged. If you come across any LCD Monitor that have a permanent one vertical or one horizontal line across the LCD screen then most probably you need to replace the LCD Panel as both the problems can’t be repair due to the fault could be in the LCD driver IC, LCD Controller board or even the broken TCP package or problem with the TAB bonding. You could usually see if the flex circuit on the back side of the LCD … At the very least (assuming you’re out of the warranty period), it’s probably worth a diagnosis and quote at a repair shop, if you’re not comfortable replacing the screen assembly yourself. What laptop is this by the way? Other times the T-Con Board itself may be faulty and need to be replaced. The cost of repairing an LCD monitor will usually cost more than replacing it outright. Vertical lines appearing on LCD screen is very common. Common issues with LCD monitors. If the horizontal or vertical lines are still present, then substitute the cable if … If this is the case then you may need to request an RMA. An incorrect refresh rate setting can also cause flickering. Try adjusting the brightness of your screen up or down to see if the noise dissipates; of course, this can be a less than optimal solution if you need your screen brightness at a specific setting. Was I scammed? This could also be indicator of an issue with the panel of the display. Horizontal, vertical, jagged and diagonal lines on the LCD screen indicate the panel damage. You must log in or register to reply here. If you get a single set of horizontal lines across TV screen in recent times, then there is damage in the internal part, a loose internal video cable or a graphics system failure. Restart your computer. Buzzing can occur due to problems in power regulation to one or more bulbs. One day you will turn on the monitor and these brightly colored lines will appear with no way to get rid of them. I have a series of different colored vertical lines on my monitor. Fortunately, a faulty CFL bulb is a fairly standard issue, as is a malfunctioning power regulator in various other components that can cause similar problems. Toshiba Satelllite C55-B5300 Disassembly guide? A bad cable, or a cable that is not securely fastened to the input/output ports, can disrupt the signal and cause horizontal or vertical lines. Whether the screen belongs to a laptop computer or desktop PC, mobile phone, or even a television, the fault is usually due to the ribbon cable and its connections.. A faulty ribbon cable can cause all sorts of havoc manifesting in bright vertical lines. Vertical Lines. It began with a single line, then 2, then 8, and so on. What to do when there are vertical lines on the screen and new boards don't fix it.