Enable LCD of Sony VAIO VPCS116FW on Ubuntu 10.10

Because SONY has modified BIOS for the Nvdia chip in VAIO, official Nvidia drivers can't drive built-in LCD correctly on Ubuntu 10.10. To make LCD usable, one need to:

1. Use the latest Nvidia graphic driver from X updates PPA (260.19.29/270.18 is tested).

2. Modify /etc/X11/xorg.conf to add the two lines to the "Device" section:

Option "ConnectedMonitor" "DFP-0"

Option "CustomEDID" "DFP-0: /proc/acpi/video/IGPU/LCD0/EDID"

With these two steps, LCD should work well. Additional external monitors can be added. Also, support of brightness control can be added. Following are my xorg.conf:

Reference:

http://code.google.com/p/vaio-f11-linux/wiki/NVIDIASetup