monitor backlight won't turn on when starting. running osx mavericks

[GoogleCodeExporter]

This problem is intermittent and only started after upgrading to mavericks. 
sometimes when i power on my computer the screen remains black. I can hear the 
chime and see the power light, and I can see shadows of the login if i shine a 
light at the screen. When I login with password, backlight turns on and 
computer runs fine for a few weeks and then the problem reoccurs once again. 
Genius bar says this is something he has never seen before and believes this 
has to be a software problem. When he looked at the log in terminal he 
indicated that it could be a problem with a kernel that this program is trying 
to run.

Original issue reported on code.google.com by msf2...@gmail.com on 13 Mar 2014 at 10:19

[GoogleCodeExporter]

Hi,

As I understood correctly, this bug is not stable. Theoretically it can be 
because of nosleep, but I didn't see it before. What hardware do you have?

--P.

Original comment by integral...@gmail.com on 25 Mar 2014 at 2:36

[GoogleCodeExporter]

I have a mid 2010 mac book pro. The logic board and monitor were replaced with 
factory spec parts (I originally thought it was a GPU or monitor problem so I 
had these replaced) 2 months ago and I have a 250gb solid state HD that is not 
stock. I deleted the no sleep application and so far it hasn't happened again. 

Original comment by msf2...@gmail.com on 25 Mar 2014 at 2:54

[GoogleCodeExporter]

Nice to hear that the problem hasn't happened again to you.

Original comment by integral...@gmail.com on 25 Mar 2014 at 3:12