Question about Toshiba Satellite A105 Notebook

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Satellite A105 S4054 display problem

My display has recently began taking up only about 85% of the monitor display area. There is a big black space to the right of the display and nothing I've tried seems to work. Also, when I go into the display properties, it shows my display as a digital flat panel (1024 x 768) and it's never shown that before. It normally just shows as a default display monitor. Any ideas what may be the issue?

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Re: Satellite A105 S4054 display problem

Hi, you may need tore-install the video driver. May have been a windows update which messed with the driver.. just a guess. The part of only a portion of the screen being shown indicates that the settings in the bios may have been changed. If that's the case, get back tome. Otherwise, the video card may be crapping out on it. I've had 2 or 3 of these units do that. Good luck Harvester3

Posted on Aug 18, 2007

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Display divided into 3 parts

LCD screen cracked, and Three even strips going across? Doubtful. Haven't seen it but I always have my mind open.

Three strips that are irregularly shaped? Look like glass that has cracked?
'Jagged edges'?

LCD screen is broken.

Three even strips indicates to me, that there may be a problem with the Video Cable. Then the screen Inverter is next in the diagnoses.
My money is on the Video Cable.

ALL power removed, Anti-Static Precautions FOLLOWED, I would check out the graphics chipset first.

1) Laptop OFF, monitor OFF, connect a VGA monitor to the VGA port on the laptop.
Left rear side. This is an example of a VGA Cable, and VGA connector. (VGA port on a laptop ),

(Color of connector does Not matter. It is generally Blue, though)

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.

2) Turn the monitor on. If a CRT type allow it to warm up.
Turn the laptop on.

There are at least 3 display options available;
1) Laptop internal monitor ONLY
2) Laptop internal monitor AND external VGA monitor
3) External VGA 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)

No display on external VGA monitor?
Hold the Fn key down again, and tap once more on the F5 key.

Is the display on the external VGA monitor, the same as the internal monitor of the laptop?

Problem is the graphics chipset.

Display is fine on the external VGA monitor?
Problem is the Video Cable, screen Inverter, or LCD screen.

Video Cable:


Switch Cover removed, Keyboard removed. Shows you where the Video Cable plugs into the motherboard.


Palm Rest Cover you can see the white rectangular connector, for the motherboard side of the Video Cable, at the top left.
It's above the black cable, and near the screw hole.

The Video Cable leads from the motherboard, up through the left Hinge, and into the Display Assembly.
From there it connects to the screen Inverter, and back of the LCD screen.

In the photo, (You can hover your mouse cursor on it to enlarge), the right side connector plugs into the back of the LCD screen.

The black connector to the far left connects to the motherboard.
The small white connector at the top with the Red, Green, Black, etc wires, connects to the screen Inverter.

(The small Black cable, that comes out from the black motherboard connector, is a Ground wire )

Due to the close proximity of the Video Cable to the left Hinge, it can be pulled on from just normal opening, and closing of the laptop over time.

This means the Video Cable connection on the motherboard side could be loose, or the LCD screen side, or both.

The diagnoses is to PHYSICALLY check BOTH connections. A loose connection at the motherboard, or at the back of the LCD screen could be so small in distance, that you will not see it with the human eye.

Could also result in damage to the Video Cable.
View the Video Cable with the Switch Cover removed, and see if there are any obvious signs of damage to the sheath of the cable.

If there is there could be damage to the tiny wires inside the Video Cable. (Stretched/Broken)

Use a multimeter set to OHMs, to check all wires inside the Video Cable for continuity, or have a 'Mom and Pop' computer store check it for a few bucks, or replace the Video Cable.

Video cable connections are tight? Video cable continuity check checks out OK?
Screen Inverter.

The test for a screen Inverter is to use a sensitive multimeter.
Read fairly expensive.

Not having access to a sensitive multimeter that you can use, means just replacing the screen Inverter. Seems like 'part changing', and it is, but you have to work with what you've got.,Satellite,A105,Laptop,Inverters.aspx

Find THE model number for your laptop, and the correct screen Inverter. A screen Inverter, and an LCD screen are a MATCHED unit.

Screen Inverter is checked out to be OK, or replaced, and symptoms are still the same, the problem is the LCD screen.

Remember, the first part of the diagnoses was to see if the divided parts were EVEN going across, or jagged and irregularly shaped.

Jagged in shape, and not even strips going across, means cracks in the LCD screen.

[ Main article for A and B links above; ]

For additional questions please post in a Comment


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1 Answer

Black screen, will not load up?

Is the battery charged? Might be a defective charger.

Jul 18, 2009 | Toshiba A105-S4054 Notebook

2 Answers

Bios Problem Toshiba Satellite A105 s4054

Please install this one as this is the last official BIOS /and seems old ebough to be the one you had originally/:|PSAA8U

This is BIOS v.6. If this is the BIOS tat you installed and gives the screen error please tell me and I'll try to find an older version.

Feb 16, 2009 | Toshiba Satellite A105 Notebook

1 Answer

Black screen

use the same key combination once again it will give you your display back...

Dec 02, 2008 | Toshiba Satellite A105 Notebook

1 Answer

Replace monitor?

how to take the monitor off the laptop and replace

Aug 19, 2008 | Toshiba Satellite A105 Notebook

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Toshiba Satellite A105 Screen Problem

Only thing i can say is this. Try to get a new screen because from what you are describing. I believe that the monitor is damaged inside. If you got the laptop recently i will suggest that you get it returned for a different one.

Mar 08, 2008 | Toshiba Satellite A105-S4004 Notebook

1 Answer

Adding RAM

no there is not a order for that but you can try one by one like that you'll see if that is detected or not so if any one is not detected or does what it was on the first time may be there is a bad one so try it

Jan 05, 2008 | Toshiba A105-S4054 Notebook

1 Answer

Toshiba a105-s4054

Try pressing the following 2 keys simultaneously- Fn & F5. Do this only once. If this doesn't fix the problem, be sure to hit both of them simultaneously 1 more time to set the machine back in it's original state. What you are doing is switching between the internal monitor and an external monitor, should you ever have a reason to attach one.

Nov 07, 2007 | Toshiba A105-S4054 Notebook

2 Answers

Laptop LCD mounting bracket broken.

try ebay search for toshiba Satellite A105-S361 "for parts only". you may get one for less than $10.00.

Sep 16, 2007 | Toshiba A105-S4054 Notebook

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