Try attaching it the first way again, through the HDMI port and re-naming the inputs, but turning the overscan to 0%.
That's all I've got.
I have a big problem connecting my macbook4,1 (the one with miniDVI out) to my new LE46C750 Samsung TV.
I use a mini-DVI-->DVI adapter and a DVI-HDMI cable.
According to the TV manual I have to connect the mac to the HDMI1/DVI port on the TV. With this setup I get a completely disturbed, noisy, shaking, purple image. I tried renaming the HDMI1/DVI to PC, to PC DVI, changing macbook resolution (from 480p to 1080p, all frequencies, overscan and so on). No way.
If I connect the mac in the same way but on any other HDMI port, after setting game mode, 1:1 pixel mapping and activating the overscan function on the computer I get a perfect 1080p image.
The only problem with this setup is that I don't have audio, since the analog mini-jack going from the mac to the TV is used only with the HDMI1 port.
I verified that HDMI1/DVI port works properly with other devices, such as BluRay players, WD TV and so on. Cable and adapters are OK, verified on other devices.
I really can't figure out what different setting HDMI1/DVI port has in respect to the other HDMIs.
Can anyone help me out?
Thanks in advance,