My problem sounds a lot like this one. I also have an Inspiron 6400/E1505.
My video card is a Mobility Radeon X1400 (open-source Avivo driver), but since I have the same problem at the command line and the original reporter has Intel graphics, I'm gonna guess this is some kind of BIOS issue.
My problem sounds a lot like this one. I also have an Inspiron 6400/E1505.
My video card is a Mobility Radeon X1400 (open-source Avivo driver), but since I have the same problem at the command line and the original reporter has Intel graphics, I'm gonna guess this is some kind of BIOS issue.