Toshiba Satellite P70-A

Summary
Everything works for me apart from the special Toshiba function keys. I list the basic configuration files in use on mine at the end of these notes.

Hardware

 * Intel Core i7 G4 - "Haswell". Quad core with hyper threading
 * 16 GB RAM
 * 2 x 1TB hybrid SATA hard disks with 8GB of SSD each
 * Built in Intel grahics and a discrete Nvidia card which can be accessed via Optimus
 * 17.3" LED
 * Wifi + Ethernet
 * 4 USB3 interfaces
 * Multi finger sense Synaptics touchpad

Installation
You can install Linux without having to accept the Windows 8 license. Enter the BIOS by holding Esc and mashing F2 or F12. Disable SecureBoot and enable booting from DVD/CD. If you get an absolutely black screen, pass acpi_backlight=vendor to the kernel command line. Proceed as normal.

There are two hard disks already fitted so you could consider using software RAID at install time

Network - Wi-Fi and Ethernet drivers:
And install the ebuild to get the required firmware.

Graphics and Xorg

 * Bumblebee: I got optirun to work for a while and then broke it.  I have just found that running acpid at least allows optirun to start properly with nouveau driving the GPU - glxgears shows 900 fps.  More work needed here

Touchpad

 * Synaptics: Add xorg driver to INPUT_DEVICES