I have had this issue, but not only on Mirage. I've had it, occasionally, on every ROM as far as I can remember. It's been so long since I've run the stock ROM, I can't remember if I ever encountered it there.
I would imagine it has something to do with the phone waking up from deep sleep and taking to long to do it. If you find a way to reproduce it reliably, you should post something in the Mirage thread about it. mrg666 is pretty quick to respond.
Do you have a screen protector? There is a proximity sensor just down and to the left of the speaker. Sometimes the screen protector interferes with it and thinks the phone is near your face when it's actually detecting the screen protector. The sensor is hard to see but can be seen in the right light.
Do you have a screen protector? There is a proximity sensor just down and to the left of the speaker. Sometimes the screen protector interferes with it and thinks the phone is near your face when it's actually detecting the screen protector. The sensor is hard to see but can be seen in the right light.
If the issue is the same one that I've experienced, it's not a turned off screen, it's still back-lit, but it's black, as if it's still working on getting to the answer call screen but hasn't made it there yet.
Got the same problem sometimes on Ics Quat... like itll take about 3 seconds for the screen to come on
AOKP or CM9? I have this problem pretty consistently with AOKP. I never make any logcats these days, so I haven't tried to isolate the problem. We've obviously got kernel issues for the moment, so I'm not too worried about it. I can usually still get to the call in time.