Comment 82 for bug 33617

I am able to reproduce this problem routinely on a T20 laptop. If I boot "cold", the boot completes and the system runs normally. If I try booting while the machine is still "warm" from previous use (e.g. running Ubuntu), it hangs as described with the dark screen and just the "-" in the upper right portion of the screen. If I unplug the adapter and let it "cool" for a while, I can boot it successfully without any perceived problems.

I am funning version 7.10 and, although quite knowledgeable generally with computers, I have no prior experience with Linux.