[HELP]Screen Does not off when i charge while my phone is off

Hi guys i have a gt-s5300 phone rooted with a ported custom rom
I have a problem when my phone is off and charge it the screen wont turn off besides if it take too long my screen goes to white screen
And if turn on it it only restart.
Please help i always getting this problem when a ported rom is installed.
Thanks for those who answer.
Sent from my GT-S5300 Rooted w/Remix v2 Rom using XDA-Developers App
Iam Filipino