Question about Compaq Presario M2000 Notebook

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Laptop screen One of my older laptop screens, When I turn it on it is bright gray then fades to a very dark gray then stays like that. Once you turn it on, even though you can't see anything it still sounds like it is going through it's start up process until on.

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Have you tried hooking up an external moniter? If so do you have video on that moniter? If you do have video on the external moniter then you most likely have a bad inverter or a bad lcd panel.I would replace the inverter first because it's not very expensive.If that doesn't work then you can replace the lcd panelAnd if that doesn't work you have problems at the system board level.

Posted on Dec 15, 2008

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Posted on Jan 02, 2017

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I have lenovo g550...my screen flickers in every 5minutes...


Failing Inverter An inverter, typically found inside a laptop computer, consists of a small board, which has impregnated electronic circuits stamped on it. Inverters look like thin boards about the of two sticks of chewing gum. The inverter and its bulb control the intensity of the liquid crystal display, which lights the screen monitor. The computer can control the output voltage of the inverter and either lighten or darken the screen. A special type of inverter can adjust the brightness of the screen by using an internal sensor to judge the room brightness, and then adjust the screen accordingly. Failing inverters give off some specific warning signs, which can be recognized by observing different screen characteristics.

Short Intermittent Display Upon turning on the laptop, the screen flashes on in the normal mode for a short period and then blinks to black. A very faint image appears in a dark background, which will be very hard to see almost invisible. After shutting off the laptop and restarting, the same mode occurs, where the screen appears normal for a few seconds then fades to black. This condition points to a failed inverter. To confirm this, plug in an operational external monitor; if the external monitor functions, the inverter has failed. b> Total Blackout with Ghost image b> The laptop turns on, as indicated by the power supply button, but the screen comes up black. The screen comes up black after restart. You might be able to detect a very dim or ghost-like image on the monitor. When you plug in a known functioning external monitor, the external monitor operates normally. This mode of display indicates a failed inverter. b> Long Term Periodic Operation b> With this failure mode, the laptop screen illuminates normally upon start-up and remains that way after several minutes, hours or even days, until it goes very dark again. Brightness controls or restoration attempts do not work. Most often, the screen will function normally with a computer restart, but will eventually return to black. Faint ghost images might appear, as seen in the total blackout mode. b> Dark With Color Variation b> Upon computer start-up, the monitor shows black or dark gray, accompanied by very faint images. The screen might have an intermittent color change, or remain on with a non-standard color variation, like pink or red. b> Auto Control Switch b> If the screen appears black, with no faint or ghost images, look for the lid switch near the back hinge. The switch, when depressed with a closed lid, shuts off the computer and monitor functions. Sometimes the switch becomes stuck in the closed position, disallowing the computer and monitor to turn on when opened. Pushing the switch manually several times can often free it up. If the switch tab has broken or jammed inside the case, it needs replacing. b> Loose Connection In this mode, the display looks normal upon start-up, but tapping the side case of the computer turns the screen black. More tapping results in the screen functioning normally then cutting out again. This condition points to a loose wire connection from the inverter to the LCD backlight lamp, or the video cable. The connectors can be accessed by removing the monitor bezel screws and pulling the plastic retainer off. Both connectors can be cleaned and refitted.

Feb 10, 2013 | Lenovo G550 PC Notebook

1 Answer

My wife's presario cq60 widescreen laptop has a power problem. For a period of time now, several weeks, on occasion it will simply go dark and nothing lights up. I remove the battery and power cord...


By go dark do you mean it turns off? If not, LED lights on the front of the laptop continue to stay on, but the screen goes dark, this could mean the backlight of the screen is going bad. It might be intermittent, but, a screen consists of two elements, the display itself, and the backlight which is what makes the image bright. If you bring it into a well lit area when it is dark and tilt the screen back and forth, you might see the faint image on the screen. Sadly, screen repairs are expensive, easily exceeding $300 most of the time. It is often a better idea to replace it rather than repair it.

Aug 24, 2011 | Compaq Presario CQ60-220US PC Laptop

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I have a compaq paserio notebook and when I boot up the computer, either I get a blank screen or I get a very faded image that I can't hardly see so I can't log on. Most of the time I just get a blank...


Have you checked the brightness options for the screen using the HP function keys? Fn +F7 or Fn+F8 should adjust the brightness of the screen for that C306 model laptop. If adjusting the brightness has no response then try the next steps.

What happens if you turn the computer off, plug it into an external monitor or projector, and then turn the computer back on? If the video displays correctly on a computer monitor or projector, but it stays dim on the LCD screen of the laptop, then the laptop LCD Screen Back-light or inverter is probably going out. You'll need to contact HP for a replacement part or take the laptop to a certified repair center.

Nov 05, 2010 | HP Compaq Presario C306US Notebook

2 Answers

Screen is dark at start up


If its running on batteries the screen brightness will dim quite a bit. If on AC adapter it should be full brightness, but this is adjustable in either case. With the computer up and running, press and hold down the Fn key and push the up arrow to make it brighter and the down arrow to make it dimer.

Sep 16, 2009 | Dell Studio 1537 Laptop

1 Answer

Faded laptop screen, but fine with external monitor


Your screen is most likely set at a high brightness, which can be fixed by turning it down. To turn the brightness down, press "fn" and "f7" at the same time. keep pressing and releasing until the screen's brightness is good! If you make it to dark, then press "fn" and "f8" until it is lighter.
Hope this is a help,
06castwo.

Jun 02, 2009 | Computers & Internet

1 Answer

Acer aspire 5610 screen brightness fading


if you're not plugged in your laptop may be doing power management by lowering the brightness. If you are plugged in could you provide some more information?

Jan 07, 2009 | Acer Aspire 5610-4648 Notebook

2 Answers

Dell i6000 - Pink Screen


you are losing video from the motherboard..could be the video chip, yet this sort of thing can happen with laptops.

Feb 18, 2008 | Dell INSPIRON 6000 CENTRINO...

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