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Re: Laptop Display flashs then screen locks up
I wouldn't suspect its anything other than your lcd or inverter. Connecting it to an external monitor cements it. If it was the video card or motherboard it would have certainly done it again. For it to appear locked up would just mean the picture you are watching was the last in its memory to post. Meaning, if the inverter or lcd start having problems, the last thing it was told to display would appear to be frozen to whoever is watching but in actuality its the display not machine that is frozen. Try ejecting the cd tray. Better yet set your power button shut down when pushed. Then have it have another lock up watching a video then push the power button or eject to see if it responds. Then you will know forsure. Hope that helps.
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Here is a hardware test you can run to test the video and lcd screen. That came with your laptop
Diagnostics before windows using the F12 Diagnostics
* Reboot and press F12 to enter the Boot Menu
* When the boot device list appears, highlight Diagnostics and press Enter
* The computer begins to run the Pre-boot System Assessment, a series of embedded diagnostics that perform initial testing on your system board, keyboard, hard drive, and display
* If the Pre-boot System Assessment completes successfully, you receive the message Booting Dell Diagnostic Utility Partition
* Press any key to continue
* Press any key to start the Dell Diagnostics from the Diagnostics utility partition on your hard drive
* After the Dell Diagnostics loads and the Main Menu screen appears, click the button for the option you want to run -
Express Test = Performs a quick test of devices. The test typically takes 10 to 20 minutes and requires no interaction on your part
Extended Test = Performs a thorough check of devices. The test typically takes 1 hour or more and requires you to answer questions periodically
Custom Test = Tests a specific device. You can customize the tests to be run
Symptom Tree = Allows you to select tests based on a symptom of the problem you are experiencing
* When you have finished running a test, close the screen to return to the Main Menu screen. To exit the Dell Diagnostics and reboot the computer, close the Main Menu screen
during the test it will BEEP ! it is asking you if colored bars are displayed. if the bars look ok then your screen is fine but if during anytime of this test and you see the distortion you described then its the LCD screen or LCD cable
So the power is on but there is no display. Does it look like the laptop booted all the way? Does it
look like the laptop is running but there is no display?
If the laptop is running, you hear the fans running, the hard drive running, etc. but the display is black, try the steps below: Shine a flashlight on the dark screen to see if you barely see the icons on the desktop. If so, then the LCD Inverter is bad.
in an external monitor and see if the display shows up on it. It can
beany kind of monitor even the old big fat crt monitors as long as it
has a vga cable to connect to your computer's vga port. If so that
proves your video card is ok. 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.
If you see no icons by shinning a flash light and
the external monitor works, then your screen is bad. If you see no
icons by shinning the flash lightand nothing shows on the external
monitor, then most likely your video card is bad.
Try running the LCD Bist Diagnostics. Press and hold the key while powering the system on. This will start the Preboot System Assessment (PSA) diagnostics which includes a test for the LCD.
In the process of running the PSA, if the graphics test error (0334 or 0333) is given and the user presses "Y" to continue testing, the LCD BIST will begin. During the LCD BIST, a solid color screen is shown and 5 different colors are displayed. While the colors are displayed, the system beeps every two seconds and the lock lights (Num Lock, Caps Lock, and Scroll Lock) illuminate to indicate that the test is running. This can be used to determine if something is wrong with the display.
While running this test, the LCD is operating on its own, free of the video controller which may be discrete (a video card) or onboard (on the system board). The test allows you to tell an LCD panel problem from a problem with the controller. If the colors are displayed across the screen without a problem then the issue lies outside of the LCD.
this thing happened in my laptop also i got green screen fully then when i hit it behind the screen it was gone but comes many times then again i would hit later on the screen was completly lost then had to replace the screen yous is a starting period so go to a nearby computer service and fix the screen
Bearing in mind you mention the viability of cost, I'm thinking your laptop is out of warranty. This does sound like a pretty major problem, one which HP need to look at. You can always approach them for a quote first, with a min/max price, before you decide whether to go ahead or not.