Dell Studio XPS 1340

Hardware
cat /proc/cpuinfo

lspci

Graphics card
Notebook has two graphics cards - onboard and discrete. To turn off discrete card (thus reduce power consumption), there's kernel module, which turn it off via acpi call:

Source http://github.com/mkottman/acpi_call

Howto

- compile module

- copy it into modules directory /lib/modules/{ KERNELDIR }/kernel/drivers/misc/ - add module into autoload modules

- insert acpi call into this startup file (use working one from test_off.sh (in acpi_call source)):

Sound

 * Should be compiled as a module, not builtin.


 * alsaconf doesn't work for me, manual configuration was needed:

Multimedia keys

 * in lightweight WM's (tested in openbox), keys have to be mapped manually via xmodmap, see Multimedia_Keys  page


 * keycodes assignment (these keycodes are different for evdev and kbd driver)

Kernel
Here is a working kernel configuration for this laptop.

Xorg
Works with two screens (laptop screen and an external LCD monitor)