Mac won't show screen Since the beginning of today, the time now being midday, I've been having issues with my MacBook Pro. Even when I closed everything it refuses to work. Basically when I close the lid, everything is fine but when I open it the screen just doesn't turn on. The sleep light remains at a single level of light, rather than brightening and dimming over the course of several seconds. If I hold the power button down sometimes it will bring the screen back after what looks like a progress bar and sometimes it will reboot the machine.

If anyone can help me, it'd be much appreciated.
If you have another device you could try a remote connection. Personally I would be tempted to SSH into the Macbook and see what processes are at play.

This will of course only work if you have 'remote login' enabled on your Mac.


  System Preferences > Sharing > Remote Login


From an iPhone you could then install an SSH client (search: ssh) from the App store and try connecting in.

After login you could try

$ ps -A |more


to list all processes currently running a page a time (space to advance)
or 

$ top


this will give you a list of processes (q to quit)