I recently updated to the LMDE-UP5. The update said it was successful.
However, when I try to boot into it, all I get is a black screen with a flashing (flickering, actually) cursor -- no prompt, just the under-bar cursor. And it doesn't take any keyboard entry.
I tried the previous kernel, same effect.
Booting into the troubleshooting mode gives a successful root command line. But I have no idea where to start looking for the cause of the problem.
Booting the previous kernel, when I got the black screen, I tried switching to a terminal and got one, but it disappeared after a few seconds. Switching back to it again brought it back, but it would continually disappear after a few seconds.
However, I managed to log in and run a few apps; here is what I got:
Running "top" displayed an entry for gdm3, and it was taking 70% cpu time, which is WAY much on my quad core machine. Also, 'sudo ps -aux' showed all entries, except the last few, were gdm3, each with a different PID. On a hunch, I ran it again, with similar results except, the PIDs were larger. This seems to indicate that gdm3 is loading repeatedly and endlessly.
Can someone please help me fix this?
Oh, my machine is an Alienware M17x-R2;
Processor: 4x Intel(R) Core(TM) i5 CPU M 520 @ 2.40GHz;
Graphics card: ATI Mobility Radeon HD 5800 Series.