I have a problem with the sleep mode on Sony Vaio F Series and Windows 7 x64. If I wake it up by opening the lid and pressing power button everything works fine.
However, if I wake it up on some other way (e.g. move the mouse), power light turns green and fan starts spinning, but LCD is dark and I cannot use keyboard (well, actually there is no sign that anyting works).
Only thing I can do is to reboot it by pressing power button.
Does anyone know what could be the problem?