Cable to Display from motherboard has change and i get a now backlight image on screen, the book goes fine on micro dvi to dvi and i gor the camera working too. What is the problem ? the screen the connector to display cable or the cable?

check and make sure your video card is seated properly if it is my best guess without doing any testing is that your video graphic card is broken

You have to diagnose the problem.......


Right off hand I would say the screen Inverter is bad, but this is just guessing......

Why?
Because your laptop may not use a screen Inverter.
It may use LED's as backlighting.


Or, it may have a pinched/damaged video cable.......


Primer:
An LCD screen cannot produce light. It needs an additional light source.
A Backlight is the additional light source.....


A Backlight can be a CCFL, (Or more than one), or a series of LED's.
(Light Emitting Diode)


A CCFL is a Cold Cathode Fluorescent Lamp. (Bulb)
Similar to Fluorescent lighting used in homes, and businesses; but on a MUCH smaller scale.


Average thickness is 2mm. That is a little larger than 1/16th of an Inch, or about the width of this capital letter -> O <-

Average length is almost as long, as the LCD screen is in height.


A screen Inverter is used to convert the power, (Electricity), of the laptop; for the LCD screen, and the Backlight.


A laptop that uses a CCFL, (Or more than one), uses a screen Inverter.
A laptop that uses LED backlighting, May or May Not use a screen Inverter.


Seems when the LED backlighting technology first came out, a few laptop models Did use a screen Inverter.
As the LED backlighting technology evolved, a screen Inverter was no longer used.

Average example of a screen Inverter,

http://www.amazon.com/Screen-Inverter-HP-Pavilion-DV6000/dp/B0058TMLLY

The LCD screen is in the Display Assembly.
The plastic frame in front of the LCD screen, is the Display Bezel.
(Different manufacturers use different terms. The above is for HP, and Compaq laptops)

Display Bezel removed, the screen Inverter is located at the bottom of the LCD screen.
That is IF, the laptop uses a screen Inverter.
If the Backlight is bad on a laptop that uses LED backlighting, the LCD screen itself is replaced.
The LED backlighting is built-in.

The Video Cable, (Display Cable, etc), connects to the motherboard, usually under an area under the Keyboard, or just above it. Some models have the Video Cable connecting to the Bottom of the motherboard, and at the back.

Average example of a Video Cable,

http://www.amazon.com/Video-HP-Pavilion-DV6000-FOXDDAT8ALC0041A/dp/B003YDLDBK

The Video Cable then routes through Channels, and Latches; and comes up around the left Hinge.
It then goes on to up into the Display Assembly.

Depending on the technology used, (screen Inverter, or no), the Video Cable splits off, and connects to the screen Inverter.
The rest of the Video Cable then connects to the back, of the LCD screen.

Due to just normal opening, and closing of the laptop; the Video Cable may become pinched, and/or pulled on.

This can cause the connection at the motherboard to become loose, and/or at the screen Inverter, (IF used), and/or at the back of the LCD screen.

It may also cause damage to the Video Cable. (Stretched/Broken)

Point?

1) May be just a loose connection/s of the Video Cable
2) May be a damaged Video Cable
3) May be a bad screen Inverter
4) May be a bad LCD screen.

Post in a Comment, as to the laptop manufacturer name, and model number.

This way I can step by step you through diagnosing the problem, for YOUR laptop; and not post a bunch of generic information.

HOWEVER, it does depend on if the information is available on the internet. Such as a free Service Manual, and/or pictorial guides.

I CAN guide you even if there is not, but if there is; it just makes it simpler for you.

I can tell you it is easy. Once you have performed this procedure, you may want to do it for a friend, or relative; if the situation arises.

Regards,
joecoolvette

http://www.insidemylaptop.com/

Hi,
Dear User..Does the Screen have a displayed Image?

If the laptop has no image at all it can be video card or LCD cable or the LCD panel. About the only non-invasive test you can try is to plug an external monitor into the laptop. This will determine if the problem is motherboard/graphics card or lcd cable/lcd screen. If you have an image on the external monitor then its likely to be lcd/cable/lcd screen.

Is the Displayed Image Faint?

A dim screen can be caused by three things;

1/ The LCD inverter which runs the LCD backlighting

2/ The CCFL backlighting fluro tube in the LCD panel

3/ The motherboard supplying signal & voltage to the inverter.

Thanks

This is a new feature by Acer.

Watercolors by Pablo.

The desktop screen shakes as an added feature.
It's for 'entertainment' value.

Consensus is when the user gets tired of it, SPLAT it goes against the wall, and it's reported the shaking desktop seems to stop.

OH, I'M JUST KIDDIN'!

(But you know you were tempted, lol!)

Diagnose:
See if the problem is the graphics chipset, or Video Cable, or inside the Display Assembly.

(Inside the Display Assembly; screen Inverter, or LCD screen)

Primer first:

An LCD screen cannot produce light. It needs an additional light source.
A Backlight is the additional light source.

A Backlight can be a CCFL, (Or two of them); or a series of LED's.
(Light Emitting Diode)

A CCFL is a Cold Cathode Fluorescent Lamp. (Bulb)
Similar to Fluorescent lighting used in homes, and businesses, but on a MUCH smaller scale.

Average thickness is 2mm. That is a little larger than 1/16th of an Inch.
Average length is almost as long, as the LCD screen is in height.
Basic example. View the last 8 photos,

http://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/

CCFL's have Mercury inside just like their bigger 'cousins'.

The Acer Aspire 9810-6829 Notebook PC, uses CCFL for a Backlight.

A screen Inverter is used to convert the power (Electricity), from the laptop for the LCD screen, and Backlight.

Chip and Chipset are slang terms for I.C.
Integrated Circuit,

http://en.wikipedia.org/wiki/Integrated_Circuit

The Integrated Circuit, or chipset, for graphics; is the graphics chipset, or G.P.U.
Graphics Processing Unit,

http://en.wikipedia.org/wiki/GPU

Primer over.


Graphics chipset:

Laptop OFF, monitor OFF, attach a VGA monitor to the VGA port; on the back of the laptop.
This is an example of a VGA port (Connector), and VGA Cable,

http://en.wikipedia.org/wiki/VGA_Connector

Scroll down for VGA cable example.

You can use a CRT type of monitor, (Looks like a small TV), or a Flat LCD screen monitor if it has a VGA cable.

You can also use a Flat LCD screen monitor if it has a DVI Cable.
Connect to the DVI port on the back of the laptop.
Example of DVI port, and DVI Cable,

http://en.wikipedia.org/wiki/Digital_Visual_Interface

DVI Cable to the top/right. Click on to enlarge.
DVI connector (port) example below it. An illustration of the connector.

[Looking at the various DVI connector types, which are shown as illustrations to the middle/left of the page; your DVI connector is a DVI-D dual link ]

1) Turn the monitor on. If a CRT type allow it to warm up.
2) Turn the laptop on.
By factory default settings the display should show in the external monitor.

If not;
There are at least 3 display options;
A) Internal monitor of laptop ONLY
B) Internal monitor of laptop AND external monitor
C) External monitor ONLY

Press, and hold down on the Fn key, and at the same time tap once on the F5 key.
The F5 key is the Display Toggle-Over key.

Still no?
Hold the Fn key down again, and tap once more on the F5 key.
If the display on the external monitor, is the same as the internal monitor of the laptop; you have a problem with the graphics chipset.

More than likely if this problem exists, it is the MOUNTING of the graphics chipset TO motherboard; and not the graphics chipset itself.

I don't believe this is the problem.
However we are following a diagnostic flowchart, and it's exacting.
No guessing.

Perform the above test, and post the results in a Comment.
If the graphics (Display) is good on the external monitor, then the problem is the Video Cable, or screen Inverter, or LCD screen.

Video Cable:
The Video Cable connects to the motherboard, in an area under the Middle Cover.
The Middle Cover is the strip of plastic above the Keyboard, and below the Display Assembly.

From there it loops over, and goes under the Left Hinge.
The Video Cable then goes up into the Display Assembly.

The main part of the Video Cable has a smaller cable that comes off, and connects to the screen Inverter.
The rest of the Video Cable connects to the back of the LCD screen.

Due to normal repeated opening, and closing of the Display Assembly, the Video Cable may be pinched.
This can cause pulling on the Video Cable, and loose connections of the Video Cable.

Loose at the motherboard connection side, or loose at the screen Inverter, or loose at the LCD screen. Or a combination of all.

This can cause what you are seeing.

The Video Cable can also be damaged from being pulled on.
Stretched/Broken wires inside the sheath of the Video Cable.

Screen Inverter:
If the Video Cable connections are tight, and the Video Cable has had a continuity test performed, deeming it to be in good repair, then the screen Inverter is the next component to check.

90 PERCENT OF THE TIME the fault can be attributed to a bad screen Inverter.
HOWEVER, the Video Cable connections, and condition, MUST be checked out, and the Video Cable MUST be ruled out before going on. Before going to the screen Inverter.

To test a screen Inverter requires a sensitive multimeter.
Read fairly expensive.
For this reason, the reason of ease of access to replace, (Just remove the Display Bezel), and the usually low cost; the screen Inverter is just replaced, instead of tested.

Looking at the average cost though, for a screen Inverter for your laptop, ($48 to $64), this doesn't seem like a viable solution.
Usual low cost is around $9 to $20.

However the screen Inverter must be ruled out, before going on.
Next in line is the LCD screen itself.
Average cost is around $160 USD.

Would bite to replace a $160 LCD screen, just to find out the problem was a $48 screen Inverter, and have bought both.

A Continuity test for the Video Cable, is to use a multimeter set to OHM's (1K), and check every wire in the Video Cable.
A continuity test checks to see if the wire, allows electricity to flow through it. Electricity does not flow, you know you have a broken wire in the Video Cable.

Means replace Video Cable.

An assistant, is also used to gently wiggle the middle of the Video Cable, to also see if there is a broken wire.
An intermittent reading on the multimeter, means there is a broken wire in the Video Cable.

You can also take the Video Cable, down to the nearest small computer shop, and have the resident tech check it for continuity. Should only be a couple of bucks.

I can give you a link to a free Service Manual, (PDF file form)

I can link videos, and pictorial guides that may help also, but will not be for the Aspire 9810 series of Notebook PC.
'A picture is a thousand words' they say.

I can also guide you step by step, if you like.

http://www.tim.id.au/blog/tims-laptop-service-manuals/#toc-acer

Go to the 'paragraph' that starts with Aspire 1200.
(1200 in Blue)
Drop down to the 14th line, or last line; (9500 in Blue), scroll across, and click on the blue -> 9800

Post back in a Comment.

Regards,
joecoolvette

Don't assume. Diagnose.

Problem could be graphics chipset, Video Cable, screen Inverter, or LCD screen.

Graphics chipset:

1) Laptop OFF, monitor OFF, connect a VGA monitor to the VGA port, on the laptop.
(Back of laptop - Blue)

Example of a VGA Cable, and a VGA connector, (Port on laptop),

http://en.wikipedia.org/wiki/VGA_connector

If you have a CRT type of monitor (Looks like a small TV), you can use it, or a flat LCD screen monitor with a VGA cable.

The Toshiba Satellite P105-S9722 Notebook PC, also has a DVI connector on the back of the laptop. (Next to the blue VGA port)
You can connect a flat LCD screen monitor with a DVI cable.

Example of a DVI Cable, and DVI connector,

http://en.wikipedia.org/wiki/Digital_Visual_Interface

2) Turn the monitor on. If a CRT type allow it to warm up.
Turn the laptop on.
By factory default the display should be on the external monitor.

If not;
Press, and hold down on the Fn key, (Bottom left), and tap once on the F5 key.
The F5 key is the Display Toggle-Over key.

You will see a list. It 'hot cycles' through the list, until you come to the external monitor device you are using.

http://shop.mcccomputers.com/network-modem-cards/6037-toshiba-satellite-p100-p105-p105-s6104-p105-s9722-video-board-256mb-ts15082.html

External monitor display shows no white screen?
Your graphics chipset is good.
Go on with the diagnoses.

Problem is with the Video Cable, or in the Display Assembly.
(Screen Inverter or LCD screen)

Video Cable:
The Video Cable attaches to the motherboard under the Switch Cover, and about at the F2 and F3 keys.
It then routes under the left Hinge, and up into the Display Assembly.

From there it connects to the screen Inverter, and back of LCD screen,

http://www.irisvista.com/tech/laptops/toshiba-satellite-p105/big/toshiba-satellite-p105-11.jpg

From;

http://www.irisvista.com/tech/laptops/toshiba-satellite-p105/take-apart-1.htm

http://www.irisvista.com/tech/laptops/Toshiba-Satellite-P105-P100/remove-lcd-screen-inverter-1.htm

Due to normal opening, and closing of the laptop, the Video Cable may become pinched, and pulled on.
This can lead to a simple loose connection of the Video Cable TO the motherboard, or TO the back of the LCD screen.

(The screen Inverter connection should also be checked)

Visual inspection will NOT do. You need to physically see if you can plug the motherboard connection, and LCD screen connection in.
It could be just loose enough you won't be able to see it, but will affect the display.

Sheath of Video Cable needs to be visually inspected for signs of damage. Signs of damage to the sheath, may also mean damage to the tiny wires inside the sheath of the Video Cable.
(Stretched/Broken)

Assurance that the Video Cable is not the problem, means checking out, or have checked out, with a multimeter set to OHM's, to run a continuity check of all the wires.
('Mom and Pop' computer store. See if they will check it)

Or simply replace the Video Cable. (After you fire up the laptop, and see if loose connections was, or was not the problem)

http://www.batterysupport.com/toshiba-satellite-p105-s9722-cable-p-377633.html

(Left side connects to LCD screen. Right/Top connector goes to motherboard. Right/Bottom connector goes to screen Inverter)

Video Cable checks out OK?
Go on to screen Inverter.

http://www.ebay.com/itm/TOSHIBA-Satellite-P105-S9722-laptop-lcd-Screen-Inverter-/250759700669

The plastic thin frame in front of the LCD screen, is the Display Bezel.
The screen Inverter is behind the Display Bezel, and mounted at a location towards the bottom of the LCD screen frame.

A screen Inverter is tested with a sensitive multimeter. Read fairly expensive,

http://www.fonerbooks.com/test.htm

It is for this reason that those who do not have access to a sensitive multimeter, usually just replace the screen Inverter.
(Also low cost, and ease of access to replace)

Screen Inverter checks out OK?
Problem is the LCD screen,

http://www.amazon.com/SATELLITE-P105-S6084-P105-S9722-P200-140-REPLACEMENT/dp/B007QEEYGE

For additional questions please post in a Comment.

Regards,
joecoolvette

[ Bet it's the video cable, or screen Inverter, that is the problem ]

[ Primer:
An LCD screen cannot produce light by itself. It needs an additional light source.
A Backlight is the additional light source.

A Backlight can be a CCFL, (Or two of them), or a series of LED's.
(Light Emitting Diode)

The Toshiba Satellite P105-S9722 Notebook PC, uses One CCFL for a Backlight.

A CCFL is a Cold Cathode Fluorescent Lamp.
Similar to Fluorescent lighting used in homes, and businesses, but on a MUCH smaller scale.

Average thickness is 2mm. That is a little larger than 1/16th of an Inch.
Average length is almost as long, as the LCD screen is in height,

General example,

http://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/

A CCFL contains -> Mercury, just like Fluorescent lighting used in homes, and businesses.

A screen Inverter is used to convert the power from the laptop, for the Backlight, and LCD screen.
90 Percent of the Time the fault is a bad screen Inverter.

Primer over.

why not try a dead display on 2 machines 2 PCs
using only 1 data cable at a time why try to confuse it????????

the OSD must work, or the display is bad or the power supply to it is dead.
easy as apple pie.

the monitor has a tiny computer inside it (micro)
on mine, the data lines dead shows NO SIGNAL in the screen
every time you I power up my monitor with data cables pulled off.

best is to read the book for your monitor, and run all the tests it
tells you there,

Try attaching an external monitor to the laptop & see if you could get any display on it. If this is successful, then you might have either a faulty LCD cable or screen inverter board.
The LCD cable transfers data signal from the motherboard & video card to the LCD screen. It also supplies high voltage DC power to the screen inverter board. The screen inverter board works as a power supply for the backlight lamp mounted inside the LCD screen. It converts low voltage DC power to high voltage AC power needed for the backlight lamp.

Sounds like your inverter or your backlight is failing. The inverter is an easy repair, the backlight can be replaced but it involves taking the LCD panel apart, The backlight comes installed on new screens. I can include a service manual below and possibly a generic guide to backlight replacement....

http://support.dell.com/support/edocs/systems/latd505/sm/display.htm#1052500

http://www.laptoprepair101.com/laptop/2007/01/31/replace-screen-inverter-fix-backlight/

think you might have a failed screen inverter (FL inverter); this problem is very common with laptops. The inverter board acts as a power supply for the LCD screen backlight bulb, it converts low voltage DC power into high voltage AC. On most laptops the inverter board is located inside the display assembly below the LCD screen and you can get access to it if you remove the screen bezel (LCD mask). When the screen inverter goes bad the backlight will not turn on anymore or it turns on for a short time and then goes off, but you still can see a faint image on the screen and the external monitor works just fine. First of all I would make sure it’s not just a loose connection and reseat connectors on the inverter (it looks like you already done this part). Next, I would try replacing the inverter board. It might fix your problem with the backlight. It’s possible that you have a faulty cable, bad motherboard or even bad LCD screen, but I would try replacing the screen inverter first.

Thank you for providing your configuration details.
You have failed to specify wheather or not your LCD Display is under Warrenty.

Perhaps these simple trouble shooting procedures will get the job done.

1. use the DVI to VGA adaptor that came with your card

Plug in a regular CRT monitor to the Primary Display Output Port using the DVI to VGA adaptor
( either port can be designated as the primary by you )
I like to use the Port nearest to the motherboard as the Primary

2. plug in the your LCD monitor on Secondary Display port using your DVI cable

At this point you should be able to see your desktop on the Primary CRT Display

3. Go to the display properties and use the Nvidia Dual Display Setup Wizard

set both desktops to CLONED at a resolution of 1024x768 and set the refresh to 60Hz
which is default for most LCD displays , some have higher refresh rates , consult your user manuel

If the display resolution and refresh are set incorrectly for your CRT or LCD you will see
Signal Out of Range ( if the display has the ability to display that error message )

At this stage both displays should be showing a Windows Desktop

If you now see your desktop on both displays , you can now put the LCD on the Primary Port



No Signal Detected ( this means the display device is not receiving a signal )

If your LCD display is still displaying the error message
"No Signal Detected" after performing the trouble shooting proceedures
You may need to read the user manuel about how to enable DVI signal input.

If you are certan you have done everything correctly but still see only "No Signal Detected"

Your LCD Display may need replacement

Loch Hime :-)