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No display Hi I have a 12inch MSI 1221 notebook the lcd was broken when I got it I tryed to connect an external screen hdmi/vga but got nothing the post boot up seams to freze

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Poss hard drive bad sectors

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How about looking at a screen?

Use an external monitor

Briefly;

Your laptop has an external display device port. (Connector)
I do not know what it is, because you didn't state the laptop manufacturer name, and model number; Elizabeth

It may be a VGA port, or HDMI port, or Mini-HDMI port; or DVI port

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

(Scroll down for VGA Cable example)

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

(You can click on any photo, and it will enlarge)

http://en.wikipedia.org/wiki/File:HDMI_Connector.jpg

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

Laptop OFF, monitor OFF, connect the external display device to the laptop.
(VGA = Monitor. DVI = Monitor. HDMI, and Mini-HDMI usually = HDTV. They all compromise an external display device)

Turn the monitor/HDTV on.
Turn the laptop on.
By factory default settings, the display should show on the external display device.
IF not;

There are at least 3 display options. For this example I'm going to use a VGA monitor.
(For a VGA monitor you can use a CRT type of monitor. Looks like a small TV. Or you can use a flat LCD screen monitor, if it has a VGA Cable attached)

The basic 3 display options using a VGA monitor are;
1) Internal monitor of laptop ONLY
2) Internal monitor of laptop AND external VGA monitor
3) External VGA monitor ONLY

Hold the Fn key down, and at the SAME time tap once on the Display Toggle-Over key.

Which key is that? Dunno. Laptop manufacturer name, and ......................

It will be one of the F keys at the top. F1 through F12.
The Function key will have a monitor icon on it, and usually an arrow on one side........Or perhaps two monitor icons sitting side by side.
(Empty rectangle is a monitor icon)

Still no display on external display device?
Hold the Fn key down again, and tap once more on the Display Toggle-Over key

[If memory serves for Display Toggle-Over key;
HP = F4
Acer = F5
Toshiba = F5
IBM/Lenovo = F8

Don't write that in stone, however.......]

Once you post the manufacturer name, and model number; then I can guide you step by step.

Post back in a Comment.

Regards,
joecoolvette

Apr 25, 2013 | Computers & Internet

2 Answers

How do I hook a an external monitor up to a hp dv6 1355 with a cracked screen?


http://h10025.www1.hp.com/ewfrf/wc/product?product=4043282&lc=en&cc=us&dlc=en&lang=en&cc=us

Product information > Product specifications > Product specifications;

External Ports:
1 VGA (15-pin)

Manuals > Notebook Tour - Windows 7;

Left-side Components - External Monitor Port
Left/Rear side of laptop,

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

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 an HDTV if it has an HDMI port, and you have an HDMI cable. The HDMI port is on the Left side of the laptop, too.

{Don't buy an HDMI cable that is expensive. Just a waste of money.
Those gold plated parts are just a little bit better, than an HDMI cable that doesn't have it. $20 for an HDMI cable is PLENTY. (12 Feet) I use one's that cost less )

A) Laptop OFF, monitor (External display device) OFF.
Connect the VGA monitor to the VGA port, on the laptop.

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) Internal monitor ONLY
2) Internal monitor AND external display device (VGA monitor in this example)
3) External display device ONLY

Press, and hold the Fn key down, tap once on the F4 key.
(The F4 key is the Display Toggle-Over key)

Wait a few seconds.
Still no?
Hold the Fn key down again, and tap once more on the F4 key.

For additional questions please post in a Comment.
Regards,
joecoolvette

Dec 15, 2012 | Computers & Internet

1 Answer

Screen will not load just white lines


Hi,

Does external display work fine? If you have not checked, connect an external display like desktop monitor or a LED TV which has VGA connector to your laptop's vga port. You may have to use some fn keys combination to switch from laptop display to external. If external display works fine then check the display cable connecting laptop motherboard to laptop display. And also check laptop LCD/LED screen. You may have to try another with another screen in such scenario.

Sep 17, 2012 | Pavilion g7-1219wm Notebook PC

1 Answer

I've connected by Dell Latitude D620 VGA to my HDMI LCD TV but there nothing displaying on the TV


Try lowering screen resolution on TV. There is a chance your video card can't handle HD like 1080 dpi or higher. Plus make sure TV input is set to VGA.

Aug 31, 2012 | Dell Latitude D620 (D620-rfb1.6) PC...

2 Answers

Have a Gateway Notebook KAV-60 with a broken screen. Trying to connect to an external monitor without any prompts or commands, as I can't see the screen. With an Acer Netbook I just plugged in the


Make sure the vga cable is in tight on the kav-60 and the external monitor.

Try the keystrokes to toggle the display. Normally you would Press and Hold the FN function key located at the lower left on the keyboard then hit the key F1 thru F12 that toggles the display. The correct F1 thru F12 key to hit will have LCD/CRT on it or it will have the icon of a display. The display toggles in three stages ( laptop only, external only or both laptop and external).

Apr 29, 2012 | Gateway Computers & Internet

2 Answers

Screen comes on with loads of colouerd lines


Suggest you diagnose, and see if the problem is in the Display Assembly, Video Cable, or graphics chipset.

1) Laptop OFF, monitor OFF, attach a VGA monitor to the laptop.

Since you didn't post the model number of the laptop, (Is it an MSI laptop also?), I can only post generic information.

This is an example of a VGA connector, and a VGA cable,

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

You can use a VGA monitor that is the CRT style, (Looks like a small TV), or a flat LCD screen monitor that has a VGA cable attached.

Monitor connected to laptop turn the monitor on. If a CRT style allow it to warm up.
Turn the laptop on.

By default the display should show on the external VGA monitor.
If not, press, and hold down on the Fn key, and tap the Display toggle-over key.

[ The Display toggle-over key is one of the Function hotkeys at the top of the Keyboard. It may be F4, or F5 for example. The key will have a monitor symbol on it, and perhaps an arrow pointing to the side ]

If you hold down on the Fn key, and tap the Display toggle-over key once, and nothing happens, hold the Fn key down again, and tap once more on the Display toggle-over key.

There are at least 3 display options available,
1) Internal monitor of laptop ONLY
2) Internal monitor of laptop AND external VGA monitor
3) External VGA monitor ONLY

If the display is still the same on the external VGA monitor, as it is on the laptop's internal monitor, you have a bad graphics chipset.

A) IF, the display is Fine on the external monitor, you have a problem with the Display Assembly, or the Video Cable.

B) IF, the display on the external VGA monitor is the same as the internal monitor of the laptop, you have a bad graphics chipset.

I have not seen any service bulletins stating problems with graphics chipsets, or the mounting of the graphics chipset, for MSI laptops/netbooks.

If the graphics chipset is bad you are looking at a motherboard replacement.

Video Cable:
This flat ribbon cable connects to the motherboard, goes up under the left Hinge, (Probably), and connects to the back of the LCD screen.

From opening, and closing during everyday usage, the video cable may have been pulled on, causing damage to the cable. Or pulled it loose from the motherboard connection, or LCD screen connection.

Dropping the laptop will also pull on the Video Cable, if the laptop was open when dropped.

[ The Video Cable plugs into the motherboard, and plugs into the back of the LCD screen. This is an example using an HP dv4 series of Notebook PC,

http://www.insidemylaptop.com/replace-ccfl-lcd-screen-hp-pavilion-dv4-laptop/

Scroll down to Step 19, to see an average Video Cable, and how it connects to the back of the LCD screen.

[ I posted a solution earlier to a problem similar to this, and the asker found the Video Cable was loose on the back of the LCD screen,

http://www.fixya.com/support/t10155788-compaq_presario_cq62_238dx_felloff

The connector on the other end of the Video cable, that plugs into the motherboard, is similar to the LCD screen connector ]

ALL power is removed from the laptop. AC adapter (Charger) and Battery. Anti-Static Precautions are followed.

Then the laptop is partially disassembled down far enough, to see if there is obvious damage to the video cable on the motherboard side, and/or if the connection of the Video Cable to the motherboard is loose.

Look at the sheath of the video cable, and see if there are obvious signs of damage. Damage to the sheath of the cable, may be an indication that the tiny wires inside the cable, are damaged. (Stretched/Broken)

To test the Video Cable to see if it is good, the Video Cable needs to be completely removed, and a continuity test performed.

{A multimeter is set to Ohm's. Each wire is checked in the Video Cable to see if electricity will flow through it. Continuity.
If not the wire is broken.

An economical multimeter that will suffice for this test, can be purchased for around $5 to $12. Available in a multitude of stores. An auto parts store is but one example. Analog, or digital is fine.

If this is not feasible, and/or the knowledge to use the multimeter is not available, ( I can guide you, however ), perhaps take the Video cable to the nearest computer repair shop, and have them check the continuity }

Video Cable connections prove to be tight on the motherboard side, AND on the LCD screen side, go to the screen Inverter.

Primer:
An LCD screen does not produce light. (Or not enough light)
An additional light source is needed.
A Backlight is the additional light source.

A Backlight can be a CCFL, or a series of LED lights.
Don't know the model number of your MSI (?) Notebook PC, or I could tell you which Backlight technology your laptop uses.

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

(Average size of a CCFL is 2mm Wide, and 334mm Long. That is approximately a little thicker than 1/16th of an inch Wide, (.078 thousandths), and a little over 13 inches Long)

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

A screen Inverter is a small circuit board located behind the Display Bezel, (Also referred to as Display Mask), and at the bottom of the LCD screen.

90 PERCENT OF THE TIME the fault can be attributed to a bad screen Inverter


My thoughts are that you have either a bad connection for the Video Cable, and/or it is damaged, OR you have a bad screen Inverter.

I have access to Service Manuals for MSI Notebook PC's, but only certain models.
However post the model number, (Located on the Bottom of the laptop, in a white service tag, or sticker), in a Comment.

After you have disassembled enough laptops, Julie, they all seem to follow the same basic disassembly pattern.
We'll see what we can do.

Regards,
joecoolvette

Jan 16, 2012 | MSI Computers & Internet

1 Answer

Dell 1545 laptop with white LED screen on start up. Works fine when connected to external screen via vga connector. Everything else works ok. Broken & remade connections between mobo & screen = no...


If the display works fine when connected to external screen via VGA connector then then the problem is either with the LCD display panel ( which consists of the display panel and inverter ) or the LCD cable that connects the LCD to the motherboard. You could try to re-seat the cable connection on the back of the LCD panel.

Aug 01, 2011 | Dell Inspiron 6000 Notebook

1 Answer

No display after repair new lcd


Most important thing is to try and get video but it also sounds like you might be having issues with the hard drive if your trying to install windows and the light for it is staying frozen.

Motheboard is going bad in it if the machine is running normal but you can't get video from the lcd or the outputs.


Feb 06, 2010 | Computers & Internet

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