I have a Lenovo ThinkPad Edge E420s (Type 4401-CTO). Recently, I started having odd display issues. On the built-in display/screen, all is see is a black or white screen, with two horizontal bands, one at the very top and one in the middle of the screen. If I attach to an external display using HDMI, no problem on the external display. Usually, I found that by reinstalling the display drivers, the problem would go away. However, the problem would reappear upon restarting or shutting down the computer, so I would just hibernate computer. If I had to restart for any reason, I would reattach the external display, reinstall the display drivers, directly from Intel, and the problem would be resolved. Any ideas?
I am running Windows 7 SP1, Home Premium. System is Intel Core i3-2310M, with Intel HD Graphics 3000, and 4 GB of RAM.
As per your description, it sounds more like a hardware issue than software but in case try uninstalling the driver from device manager and reinstall the latest at this location:
It is important to say that our drivers are generic for OEM system so if the driver we provide does not work correctly, the best step would be to contact the Computer Manufacture and get their software or possible replacement for the part.