Question about HP Compaq 6720s Notebook

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I have a hp compaq 6320s laptop, i bought it 3 years back, last month suddenly its display became faint completely though i can run my laptop by connecting it with other monitor. is it the lcd issue or the wiring failure? please help me asap

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It is a backlight problem, caused by either a faulty inverter or a faulty CCFL lamp. Please click on this link to for a solution :-
Normal 0 http://www.fixya.com/support/r3598095-faulty_laptop_lcd_screen

Posted on Oct 09, 2010

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Posted on Jan 02, 2017

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I have reviewed your problem and have the fallowing for you to aces.
First, if you have only had this unit for 5 or 6 months, get it back to HP under warranty ASAP.
I work for HP and we offer a 1 year standard warranty and a extended 1 year for Display and Graphic problems.
Please, do yourself a favor and contact customer care and they will send you a Box, per paid and will have the unit back to you within 1 working week, at no charge to you.
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Turn off the Notebook remve all the peripherials, Remove battery and disconnect AC Adapter and then press and hold down power button for thirty seconds.
After 30 Seconds connect Battery and Power supply as soon as you tun on the Notebook keep on hitting F10 Notebook will show BIOS then F9 Notebook will show Load Set-up Default than Hit yes and Hit F10 again it will show save Exit and chnages now that show Fix the Problem

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Faint horizontal lines running in one part of my hp dv4-1220us laptop computer. bought in february of this year. fan sometimes runs hard, wondering what it could be.


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Vertical lines in my laptop screen


Yes the problem is with your video system hardware, most likely. A repair may be possible as it could be the delicate ribbon cable that provides the video signal from a connection on the motherboard to the actual display screen. It could be the display screen. If some tech-savy friend with a good rep and an anti-static mat, good tools, and good lighting wants to assist you or check it for you, you may give that a try. Consider first that if you have or can get an extended warranty from the manufacturer then you can have a higher likelihood of a good resolution of the problem of the vertical lines that distract from viewing the display.

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1 Answer

Two vertical lines on my compaq presario (M2000)


Hello,

Try changing your screen desktop resolution to a different value. If you still have verticle lines, then try changing the color depth from 32bit to 24 or 16. If the problem remains your display adapter has completely failed. It has failed to compute column row addressing math.

Naturally, you would want to find and install the latest drivers for your display adapter with the hope that the failure is in the software driving the display adapter and not an onboard chip. If updating your drivers fails to resolve the issue you need to have service performed on your laptop. Most laptops have the display adapter soldered on the main circuit board and many shops are capable of replacing this chip set.

Yet, get a quote first as the cost might cause you to consider an upgrade into a laptop that has a display adapter that is Direct X 9c or Direct X 10 ready as that will run most of the new game titles coming out this year.

Let me know if you have any further need of assistance as you run through the above troubleshooting routine.

I do hope this has fixed ya!

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get to the mainboard
there is a jumper near the cmos battery usually shows the
word (jbat) near it , try to change its position for some
seconds while power is off , this way will clear cmos and set the
mainboard bios to default settings.
start the system hit delete or F2 to enter setup then exit saving changes.

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