Everything working basically. Gold rating because not everything is working out of the box:

• Wireless: you have to install the iwlwifi firmware which is not free.
• Touchad: to get to to work correctly (multitouch) you have to build your own kernel (>3.13) and activate the support for it.

prometheus                
    description: Portable Computer
    product: Dell System XPS L322X (System SKUNumber)
    vendor: Dell Inc.
    version: 0.1
    serial: -------
    width: 64 bits
    capabilities: smbios-2.7 dmi-2.7 vsyscall32
    configuration: administrator_password=unknown boot=normal chassis=portable family=ChiefRiver System frontpanel_password=unknown keyboard_password=unknown power-on_password=unknown sku=System SKUNumber uuid=44454C4C-5200-104C-8048-B2C04F565731
  *-core
       description: Motherboard
       product: 0PJHXN
       vendor: Dell Inc.
       physical id: 0
       version: A00
       serial: .2RLHVW1.CN4864333F0047.
       slot: Part Component
     *-cpu
          description: CPU
          product: Core i7 (To Be Filled By O.E.M.)
          vendor: Intel Corp.
          physical id: 4
          bus info: cpu@0
          version: Intel(R) Core(TM) i7-3537U CPU @ 2.00GHz
          serial: To Be Filled By O.E.M.
          slot: CPU Socket - U3E1
          size: 800MHz
          capacity: 2501MHz
          width: 64 bits
          clock: 100MHz
          capabilities: x86-64 fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer xsave avx f16c rdrand lahf_lm ida arat epb pln pts dtherm tpr_shadow vnmi flexpriority ept vpid fsgsbase smep erms xsaveopt cpufreq
          configuration: cores=2 enabledcores=2 threads=4
        *-cache:0
             description: L1 cache
             physical id: 6
             slot: L1-Cache
             size: 32KiB
             capacity: 32KiB
             capabilities: internal write-through instruction
        *-cache:1
             description: L2 cache
             physical id: 7
             slot: L2-Cache
             size: 256KiB
             capacity: 256KiB
             capabilities: internal write-through unified
        *-cache:2
             description: L3 cache
             physical id: 8
             slot: L3-Cache
             size: 4MiB
             capacity: 4MiB
             capabilities: internal write-back unified
     *-cache
          description: L1 cache
          physical id: 5
          slot: L1-Cache
          size: 32KiB
          capacity: 32KiB
          capabilities: internal write-through data
     *-firmware
          description: BIOS
          vendor: Dell Inc.
          physical id: 0
          version: A07
          date: 01/22/2013
          size: 128KiB
          capacity: 6592KiB
          capabilities: pci pnp upgrade shadowing escd cdboot bootselect edd int13floppy360 int13floppy1200 int13floppy720 int5printscreen int9keyboard int14serial int17printer int10video acpi usb ls120boot smartbattery biosbootspecification netboot
     *-memory
          description: System Memory
          physical id: 35
          slot: System board or motherboard
          size: 8GiB
        *-bank:0
             description: DIMM DDR3 Synchronous 1600 MHz (0.6 ns)
             product: HT5SMRAP
             vendor: Hynix/Hyundai
             physical id: 0
             serial: 00000000
             slot: ChannelA-DIMM0
             size: 4GiB
             width: 64 bits
             clock: 1600MHz (0.6ns)
        *-bank:1
             description: DIMM DDR3 Synchronous 1600 MHz (0.6 ns)
             product: HT5SMRAP
             vendor: Hynix/Hyundai
             physical id: 1
             serial: 00000000
             slot: ChannelB-DIMM0
             size: 4GiB
             width: 64 bits
             clock: 1600MHz (0.6ns)
     *-pci
          description: Host bridge
          product: 3rd Gen Core processor DRAM Controller
          vendor: Intel Corporation
          physical id: 100
          bus info: pci@0000:00:00.0
          version: 09
          width: 32 bits
          clock: 33MHz
          configuration: driver=ivb_uncore
          resources: irq:0
        *-display
             description: VGA compatible controller
             product: 3rd Gen Core processor Graphics Controller
             vendor: Intel Corporation
             physical id: 2
             bus info: pci@0000:00:02.0
             version: 09
             width: 64 bits
             clock: 33MHz
             capabilities: msi pm vga_controller bus_master cap_list rom
             configuration: driver=i915 latency=0
             resources: irq:28 memory:d0000000-d03fffff memory:c0000000-cfffffff ioport:2000(size=64)
        *-usb:0
             description: USB controller
             product: 7 Series/C210 Series Chipset Family USB xHCI Host Controller
             vendor: Intel Corporation
             physical id: 14
             bus info: pci@0000:00:14.0
             version: 04
             width: 64 bits
             clock: 33MHz
             capabilities: pm msi xhci cap_list
             configuration: driver=xhci_hcd latency=0
             resources: irq:24 memory:d0500000-d050ffff
           *-usbhost:0
                product: xHCI Host Controller
                vendor: Linux 3.17.0-rc3 xhci_hcd
                physical id: 0
                bus info: usb@2
                logical name: usb2
                version: 3.17
                capabilities: usb-3.00
                configuration: driver=hub slots=4 speed=5000Mbit/s
           *-usbhost:1
                product: xHCI Host Controller
                vendor: Linux 3.17.0-rc3 xhci_hcd
                physical id: 1
                bus info: usb@1
                logical name: usb1
                version: 3.17
                capabilities: usb-2.00
                configuration: driver=hub slots=4 speed=480Mbit/s
        *-communication UNCLAIMED
             description: Communication controller
             product: 7 Series/C210 Series Chipset Family MEI Controller #1
             vendor: Intel Corporation
             physical id: 16
             bus info: pci@0000:00:16.0
             version: 04
             width: 64 bits
             clock: 33MHz
             capabilities: pm msi bus_master cap_list
             configuration: latency=0
             resources: memory:d0515000-d051500f
        *-usb:1
             description: USB controller
             product: 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #2
             vendor: Intel Corporation
             physical id: 1a
             bus info: pci@0000:00:1a.0
             version: 04
             width: 32 bits
             clock: 33MHz
             capabilities: pm debug ehci cap_list
             configuration: driver=ehci-pci latency=0
             resources: irq:16 memory:d051a000-d051a3ff
           *-usbhost
                product: EHCI Host Controller
                vendor: Linux 3.17.0-rc3 ehci_hcd
                physical id: 1
                bus info: usb@3
                logical name: usb3
                version: 3.17
                capabilities: usb-2.00
                configuration: driver=hub slots=2 speed=480Mbit/s
              *-usb
                   description: USB hub
                   product: Integrated Rate Matching Hub
                   vendor: Intel Corp.
                   physical id: 1
                   bus info: usb@3:1
                   version: 0.00
                   capabilities: usb-2.00
                   configuration: driver=hub slots=6 speed=480Mbit/s
                 *-usb
                      description: Video
                      product: Laptop_Integrated_Webcam_1.3M
                      vendor: 4437E68E664B-CC18-0D102D
                      physical id: 5
                      bus info: usb@3:1.5
                      version: 27.09
                      capabilities: usb-2.00
                      configuration: driver=uvcvideo maxpower=500mA speed=480Mbit/s
        *-multimedia
             description: Audio device
             product: 7 Series/C210 Series Chipset Family High Definition Audio Controller
             vendor: Intel Corporation
             physical id: 1b
             bus info: pci@0000:00:1b.0
             version: 04
             width: 64 bits
             clock: 33MHz
             capabilities: pm msi pciexpress bus_master cap_list
             configuration: driver=snd_hda_intel latency=0
             resources: irq:26 memory:d0510000-d0513fff
        *-pci
             description: PCI bridge
             product: 7 Series/C210 Series Chipset Family PCI Express Root Port 1
             vendor: Intel Corporation
             physical id: 1c
             bus info: pci@0000:00:1c.0
             version: c4
             width: 32 bits
             clock: 33MHz
             capabilities: pci pciexpress msi pm normal_decode bus_master cap_list
             configuration: driver=pcieport
             resources: irq:16 memory:d0400000-d04fffff
           *-network
                description: Wireless interface
                product: Centrino Advanced-N 6235
                vendor: Intel Corporation
                physical id: 0
                bus info: pci@0000:01:00.0
                logical name: wlan0
                version: 24
                serial: c8:f7:33:9f:3c:88
                width: 64 bits
                clock: 33MHz
                capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
                configuration: broadcast=yes driver=iwlwifi driverversion=3.17.0-rc3 firmware=18.168.6.1 ip=10.42.10.9 latency=0 link=yes multicast=yes wireless=IEEE 802.11abg
                resources: irq:27 memory:d0400000-d0401fff
        *-usb:2
             description: USB controller
             product: 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #1
             vendor: Intel Corporation
             physical id: 1d
             bus info: pci@0000:00:1d.0
             version: 04
             width: 32 bits
             clock: 33MHz
             capabilities: pm debug ehci bus_master cap_list
             configuration: driver=ehci-pci latency=0
             resources: irq:23 memory:d0519000-d05193ff
           *-usbhost
                product: EHCI Host Controller
                vendor: Linux 3.17.0-rc3 ehci_hcd
                physical id: 1
                bus info: usb@4
                logical name: usb4
                version: 3.17
                capabilities: usb-2.00
                configuration: driver=hub slots=2 speed=480Mbit/s
              *-usb
                   description: USB hub
                   product: Integrated Rate Matching Hub
                   vendor: Intel Corp.
                   physical id: 1
                   bus info: usb@4:1
                   version: 0.00
                   capabilities: usb-2.00
                   configuration: driver=hub slots=8 speed=480Mbit/s
                 *-usb
                      description: Bluetooth wireless interface
                      vendor: Intel Corp.
                      physical id: 5
                      bus info: usb@4:1.5
                      version: 78.69
                      capabilities: bluetooth usb-2.00
                      configuration: driver=btusb speed=12Mbit/s
        *-isa
             description: ISA bridge
             product: QS77 Express Chipset LPC Controller
             vendor: Intel Corporation
             physical id: 1f
             bus info: pci@0000:00:1f.0
             version: 04
             width: 32 bits
             clock: 33MHz
             capabilities: isa bus_master cap_list
             configuration: driver=lpc_ich latency=0
             resources: irq:0
        *-storage
             description: SATA controller
             product: 7 Series Chipset Family 6-port SATA Controller [AHCI mode]
             vendor: Intel Corporation
             physical id: 1f.2
             bus info: pci@0000:00:1f.2
             version: 04
             width: 32 bits
             clock: 66MHz
             capabilities: storage msi pm ahci_1.0 bus_master cap_list
             configuration: driver=ahci latency=0
             resources: irq:25 ioport:2098(size=8) ioport:20bc(size=4) ioport:2090(size=8) ioport:20b8(size=4) ioport:2060(size=32) memory:d0518000-d05187ff
        *-serial UNCLAIMED
             description: SMBus
             product: 7 Series/C210 Series Chipset Family SMBus Controller
             vendor: Intel Corporation
             physical id: 1f.3
             bus info: pci@0000:00:1f.3
             version: 04
             width: 64 bits
             clock: 33MHz
             configuration: latency=0
             resources: memory:d0514000-d05140ff ioport:efa0(size=32)
     *-scsi
          physical id: 1
          logical name: scsi0
          capabilities: emulated
        *-disk
             description: ATA Disk
             product: SAMSUNG SSD PM83
             physical id: 0.0.0
             bus info: scsi@0:0.0.0
             logical name: /dev/sda
             version: 3D1Q
             serial: S0XPNEAD208777
             size: 238GiB (256GB)
             capabilities: partitioned partitioned:dos
             configuration: ansiversion=5 logicalsectorsize=512 sectorsize=512 signature=0003a470
  *-battery
       product: DELL
       vendor: Dynapack
       physical id: 1
       version: 2008
       serial: 1.0
       slot: Rear
       capacity: 46620mWh