I have an ACER 5736Z-4427 Laptop with an Intel GMA 4500MHD. I first installed Ubuntu 10.10 (32-bit). I had no graphics problems at all. When 10.10 went by the way side I upgraded to 12.04LTS. I got the Black Screen of Death. I used the F6 nomodeset trick to force the load. I can now boot without Black-Screen but "Display" in gnome System Setting shows a screen resolution of 1024x768 (4:3). When I pull down on Resolution only 1024x768 (4:3) and 800x600 (4:3) are available. My actual resolution is 1366x768 (16:9). All screens are spread out horizontally. I have the same problem in 12.04, 13.10, and 14.04.
What happened to the Graphics Driver that worked OK in 10.10 (and in 10.04)?