01-04-2012 01:12 PM
I have a 2 year old Lenovo G550 laptop, system model 20023 ( Dual-Core CPU T4300 2,10Ghz, 3,00GB RAM) running 32-bit Win 7 Home Premium OS with graphic card Mobile Intel(R) 4 Series Express Chipset Family.
Month ago, I started getting 2 vertical lines on my screen, which change colors and tend to disappear when I tilt it. Recently, problem graduated to red, blue, yellow specks all over the screen. Tilting no longer works, but I noticed a definite relationship with the degree of pressure on the case. When I push hard enough on the left spot below the case (where hard disk is located), the problem resolves completely. I also tried plugging another monitor in and there seems to be no problem either. Please, help.
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01-04-2012 01:26 PM
01-05-2012 05:56 AM
Thank you for quick reply, when I switched the 2GB stick with the 1GB, I get a black screen with no access to OS, I put them back on places, but lines and specks still show. It doesn't work.
01-05-2012 06:47 AM
01-05-2012 07:17 AM
2GB ram stick only in bottom slot - > OS starts with 2GB installed memory, problem persists
2GB ram stick in bottom slot, 1GB ram stick in upper slot -> OS starts with 3GB installed memory, problem persists
Any other case (2GB ram stick only in upper slot, 1GB ram stick only in bottom slot, 1 GB ram stick only in upper slot) -> black screen
01-05-2012 07:24 AM
01-05-2012 10:39 AM
01-05-2012 03:13 PM
Graphic card issue sounded highly unlikely with the external monitor image appearing to be normal. I tried reseating the lcd cable and it fixed the problem.
01-05-2014 09:43 AM
My laptop started out with random lines appearing around the lower center portion of the screen mow I only have the right side of the screen available for viewing. When I connect to a external monitor all looks fine. So what do I have a bad card or bad LCD panel?