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Their are a couple things that could be causing this, My first thought is that the screen its self is damage. A LCD screen is composed of millions of tiny pixels so when some fails others will still work.
That other thought is that the GPU or video device on the laptop could be failing and creating video problems. Have you tried closing the laptop and opening it agian, this would help rule out a bad cable connection.
Sounds like the screen is going bad. Isolate the problem by plugging an
external monitor to the laptop. Borrow a monitor from a neighbor,
friend, relative or co-worker to plug to the laptop. It can be
any kind of monitor even the
old big fat
crt monitors as long as it has a vga cable to connect to your computer's
port. If the Borrowed monitor does not show the black lines and snowy
background, that proves your video card is ok and the problem is
your lcd screen. If the borrowed monitor shows the same black lines ans
snowy background it means your video card inside the
computer has the issue.
The video will show
on most systems when you reboot without you having to do anything. Some systems
will require you to hit the FN (Function key) + F1 thru F12. Hold down
the FN key then hit the correct key for displaying on the monitor (F1 thru
F12). The correct key will normally have CRT/LCD on it or it will have
the icon of a display.
Your monitor and your TV are currently screen 1 and screen 2 with screen 2 as an extension of screen 1 (you can move your mouse all the way across and see it come over to the TV screen). With Vista or Windows 7, right click on the desktop (no icons or programs) and choose Screen Resolution. There you will find options to change your screen output. (The choices are fairly straight forward - both screens identical, screen 1 or screen 2.) For XP, the right click on the desktop will get you to the point but I think it was called Display Options.
It's likely that your OS, whatever that is, wrongly identified the display size of your TV and it set the screen resolution too high, and you may even have what is known as a "virtual" desktop that is bigger than the physical screen size.
To ensure this is the case, move the mouse pointer towards the edges of the TV screen and see if your desktop scrolls along, and your icons and other stuff shows up. If this is the case, then adjust your resolution to a smaller size, say, from 1920 x 1200 to 1024 x 768, click Apply and then Ok.
That should fix the problem temporarily, but there's no guarantee that it will not do the same thing next time you connect your pc to your TV set. I have experienced the same thing with my laptop and HDTV, and I have had to repeat the process again.
VGA cable doesn't carry any audio: use your audio output from PC into TV audio Input (standard RCA). You need to configure your Display Properties to manage TV screen to get an effective connection. Either you have a generic Video Grafic Driver add on (I'm using Intel Graphic accelerator) on your display properties either you are using a specific (NVIDIA) driver for your video card. To check go to CP/ Display, settings Tab and in advanced you should be able to check your choice (if you don't want to go to user manual. You can also (in CP/ Display, Settings tab configure TV as a monitor and select your option accordingly: use screen resolution on screen # 2 not over native resolution of your VIZIO screen (1080 x 960?) and be sure to use all the parameters as TV can accept. As soon as TV is configured as per resolution and refresh etc.. check the presentation function on your PC: it's normally a FN key showing a screen icon on key top (on my Acer travelmate is FN + F5) on aspire may be it's FN + F4. This function key will circle between: PC mail screen -> External screen (as you configured on Display settings) -> both screen.
yes i can help u strongly... first of all u have to turn of laptop then connect yr laptop and tv then turn laptop on now when windows appeair. laptop screen has icon and other has plane wallpaper so now go to display propaties ( click on desktop>go to propaties>setting> now it's show's 2 monitor screen on display screen click in inditeficate... how it's show "Expand display " somthing like that just remove select earrow now click apply... if it's not worked go to advance then go to adaptor setting and find display setting and select "CLONE" it's male both laptop and tv screen as same...it's help u...:)
The TV will always show as screen number 2 because the laptop screen will be found first. I use mine as a monitor for my Desktop.. However, for the picture to show what your laptop does you have to clone your desktop. The button should be where your screen properties are located.