Sony Vaio Z-series and Linux nvidia xorg.conf

To have the right screen resolution when using the nvidia card on the Linux Sony Vaio Z-series:
If your resolution is 1600x900, then on the nvidia side I have added the DPI to force it to the intel value:

Section "Device"

Identifier "Configured Video Device"

Driver "nvidia"

Option "UseEDIDDpi" "FALSE"

Option "AddARGBGLXVisuals" "true"

Option "DPI" "96 x 96"

EndSection

For brightness control, one can add shortcuts for low, medium, high brightness through nvidia driver commands.