Default [Q] Black Screen when incoming call (CM 10)

[Q] Black Screen when incoming call (CM 10)

Hello everyone,

I've been having this issue since i switched from stock ROM to CyanogenMod 10.
When there is an incoming call on my phone, screen doesn't wake up, stays black (dark),doesn't light up, so I can't see who is trying to reach me and i also can't accept or decline the phonecall.
I've searched the internet, xda forum mostly, and i've found this thread

http://forum.xda-developers.com/show....php?t=2036685

Same issue, and moreover, one of the users mentioned.

"It has been fixed, see the custom CM10 thread. I don't have this issue anymore."

So i've search the thread which has been advised, but couldn't find the proper answer for this bug.
Can somebody advise ? Thanks a lot.