How long did Voldemort know about the connection???

[Carolin Mönkemeyer]

No: HPFGUIDX 73621

Hi everybody!

What really stroke me (hot showers do have their advantage) is the scene
after the sorting ceremony (I think it was) in PS/SS. When Harry was
sleeping he dreamt about the turban of Quirrell's being on his head and
telling him to go to Slytherin immediately. As it was shown later on
Voldemort was beneath it.
So my theory is that Voldemrot at this time already knew about the mental
connection between him and Harry and tried to abuse it.
In OoP Harry had developed enough that he could feel it too and afterwards
still know he did (for he forgot about the dream in PS/SS). So it might be
that with Voldemort regaining his strength also this connection became
stronger