Noticable delay with screen turning on, didn't happen before?

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Cross posted

So of you followed my latest "journey", I had a perfectly funtiocnal phone, I screwed up the lockscreen font sending me into bootloop, I managed to eventually get an update zip that flashed the correct lockscreen font to the phone, and all is well. Except for one annoying thing

I noticed now when I press the power button to wake the phone, the bottom capacitive buttons will light up first, then the display will light up. There's a noticeable lag where there wasn't one before.

Thinking it might be my system, I took a nandroid backup, then factory reset the phone (Settings -> Privacy -> Factory Reset). When it was done reloading the factory restore, I tried turning the screen off and on, delay was still there. I restored my backup, phone was back to normal, but delay was still there.

Any ideas where this delay came from? I'm going to try flashing a few other backups I have and see of they all do it.

I noticed this too. I think it's Virgin Mobile's way of "fixing" the flickering screen problem... just don't let it power on until it's cooled down. Thus we get a slow-to-turn-on screen.