Question about Toshiba Qosmio G25-AV513 Notebook

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Display has vertical white lines. Hook up a external flat screen and it works fine . Toshib Qosmio g25

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This indicates you have a bad screen, and if you press around on the back (top) of the computer display the lines will disappear until you take your hands off the area effected, and the screen needs to be replaced.

Posted on Jul 12, 2009

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Posted on Jan 02, 2017

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Hi i have problem with toshiba qosmio g25-av513 when i power on its show clear QOSMIO monogram and then start show saverl difrent colurs lines i try with external monitor show same .pls help me to fix this...


You can try downloading the most recent video drivers from the nvidia web site and installing them.

Other than that you would probably need to contact Toshiba tech support. Based on the information you provided it sounds like your video card is having a hardware issue. It's the reason you see the same lines on both monitors.

Apr 10, 2011 | Toshiba Qosmio G25-AV513 Notebook

1 Answer

LINES ON SCREEN G25-AV513


try connecting to external monitor no issue means lcd panel or connector

Feb 27, 2010 | Toshiba Qosmio G25-AV513 Notebook

1 Answer

Verticle stripes on monitor--Toshiba Qosmio G25-AV513 PC Notebook


Following factors could be causing this problem and solution as well:

1) Cable Cut: check is to see if the cable between the screen and laptop is pinched or cut. Every laptop has this wire that runs through one of the hinges

2) If this problem temporary i mean for some seconds then it could be a short signal cut problem to screen which causes screen distortion

3) Connect an external monitor and restart the laptop. If you see the same strip on the external video, then that is the motherboard or the video card problem in case you have a video card on your laptop apart from integrated graphics chip

Nov 18, 2009 | Toshiba Qosmio G25-AV513 Notebook

1 Answer

Dim display ... no backlight


You most likely have a defective screen - a defective inverter or a CCFL lamp or simply the video cable needs reseating. After reseating the video cable and the problem is still there then :-
To determine if you have a LCD screen or video card problem, read this and follow the instructions.

Defective CCFL backlight, it may have the following symptom:

  • Screen flashs on red/pink and off.
  • Picture stays on in red and slowly be come normal.
  • Picture flickering with dim display or appear black.
  • Picture flickering on and off.
All these symptoms indicate that the LCD backlight lamp (CCFL Lamp) has reached the end of the life and all you need to do is replacing the CCFL lamp

Connect an external monitor to your laptop and power it up, if you see the normal Windows images then the video card and laptop is OK and the problem is definitely the backlight.

Dim image and/or dark display on the laptop's LCD screen indicates a faulty LCD backlight and it could be the inverter that supplies high voltage to the CCFL lamp or it is the CCLF lamp is nearly burnt out or burnt out, most likely this is the case.
The inverter can be replaced easily but the CCLF lamp is more time consuming and requires soldering skills.
Check out www.lcdparts.net for parts, repair service and DIY info.

May 30, 2009 | Toshiba Qosmio G25 (G25-AV513) PC Notebook

1 Answer

Vertical lines are appearing on my toshiba laptop


first try to hook it into an external monitor if it looks good,I would have to say you have a damaged cable on your monitor.if you are comfortable taking it apart you can try to reseat the ribbon cable on the mobo.you can usually find an online manual for disassembly.

Apr 23, 2009 | Toshiba Satellite 2455-S305 Notebook

1 Answer

Qosmio g30 , problem with boot up screen


try the following
update your video graphic drivers,
try with another ram,
if still you have problem try to repair or reinstall the os

Jan 17, 2009 | Toshiba Qosmio G25-AV513 Notebook

1 Answer

Qosmio G25 Does not boot to windows


I extremely recommend DON'T do anything to the computer. Unless you plan on buying a new one anyways, don't bother fixing it on your own. blue screens are caused by one of hundreds of thousands of problems.

take the computer to a near by repair center and have them EXAMINE it. many of the issues can be solved, but be sure the is one of those cases. then get a quote on how much it will cost to fix.


You will need to do a Backup Before all your files are lost.
Good Luck

May 10, 2008 | Toshiba Qosmio G25-AV513 Notebook

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