Vexing Laptop LCD Problem

[Wheelie]

Customer has a laptop that one day was working fine at 1280x800 (recommended) and then the LCD went black. So they brought it to me for repair (I know ... huge mistake). You can plug in an external display and it works fine that way. So I ordered a new LCD from my trusted guy on eBay and installed it yesterday and it works except now it reports the following resolutions: 1366x768 (recommended), 1360x768, 1280x768, 1280x720, 1280x600, 1024x768, 800x600 which are not the specified resolutions by HP. Furthermore the screen image is shifted about 3/4" to the right and the bottom row of pixels is repeated several times at the bottom of the display for a height about equal to the height of the task bar (just below the task bar), then below that there are a few rows that are a repeat of the top of the screen's couple rows of pixels. Weird. So last night I updated the video drivers to the latest version and updated the BIOS to the latest version ... no change. Then I pulled the HDD, put in a new one, and reloaded Windows and still same issues persist. I have tried going into the BIOS setup screen and it appears the issue persists even in BIOS setup (first place I shoulda looked).

Anyone seen this before? Is this a bad LCD? A bad Inverter? Bad video cable? Or a bad motherboard?

This is an HP laptop with 14.1-in WXGA LCD (1280×800 recommended) display panel with 16:10 wide aspect ratio.

Gracias for your insight!

 

[SilverLeaf]

Just a guess, but it sounds like the new panel might not be the correct one. Does the part number match the original?

 

[dgiles79]

I would agree with silverleaf. It is probably not an exact match for the screen. If you ordered based on the model of the laptop, then you run this risk of this happening, you should always match up the model of the actual LCD.

If you did match the LCD model number, them the seller sent you the wrong item.

 

[Computech1]

Personally i'd say Silverleafs guess was spot on, only time i've seen anything like this happen was when a supplier sent me the wrong screen for a Compaque laptop.

 

[Wheelie]

Just a guess, but it sounds like the new panel might not be the correct one. Does the part number match the original?

Yes it seems to. The original LCD was LP141WX3-TLV4. The LCD I purchased and replaced it with is HT141WXB-100. If you Google either or both part numbers together they seem to be compatible (1280x800 WXGA) LCD.

This is not the one I bought but shows they are compatible.


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