Kernel.org: 3.2.5, 
sid (unstable): 3.2.4-1
wheezy (testing): 3.1.8-2
kmuto bpo d-i: 
squeeze-bpo: 3.2.1-2~bpo60+1
squeeze (stable): 2.6.32-41
lenny-bpo: 2.6.32-35~bpo50+1
lenny (oldstable): 2.6.26-27

Debian GNU/Linux device driver check & report

Clevo: D400E

PCI IDWorks?VendorDeviceDriverKernel
10390646YesSilicon Integrated Systems [SiS]SiS645DX Host & Memory & AGP Controllersis-agp
10390001YesSilicon Integrated Systems [SiS]Virtual PCI-to-PCI bridge (AGP)sis-agp
10390962Silicon Integrated Systems [SiS]SiS962 [MuTIOL Media IO]
10390016YesSilicon Integrated Systems [SiS]SiS961/2 SMBus Controlleri2c-sis96xv2.6.25-
10397007Silicon Integrated Systems [SiS]FireWire Controller
10395513YesSilicon Integrated Systems [SiS]5513 [IDE]pata_sisv2.6.25-
10397013YesSilicon Integrated Systems [SiS]AC'97 Modem Controllersnd-intel8x0mv2.6.25-
10397012YesSilicon Integrated Systems [SiS]AC'97 Sound Controllersnd-intel8x0v2.6.25-
10397001YesSilicon Integrated Systems [SiS]USB 1.1 Controllerusb-ohci,ohci-hcd
10397001YesSilicon Integrated Systems [SiS]USB 1.1 Controllerusb-ohci,ohci-hcd
10397001YesSilicon Integrated Systems [SiS]USB 1.1 Controllerusb-ohci,ohci-hcd
10397002YesSilicon Integrated Systems [SiS]USB 2.0 Controllerusb-ehci,ehci-hcd
10ec8139YesRealtek Semiconductor Co., Ltd.RTL-8139/8139C/8139C+8139cp,8139toov2.6.25-
15241410YesENE Technology IncCB1410 Cardbus Controlleryenta_socketv2.6.25-
10024c66YesATI Technologies IncRadeon RV250 [Mobility FireGL 9000]radeonfbv2.6.25-

kernel: 2.6.15
I don't know to what extent the devices work but here are some kernel messages:
10390646:  Kernel uses agpgart-sis. Messages:
agpgart: Detected SiS 646 chipset
agpgart: AGP aperture is 64M @ 0xe8000000
agpgart: Found an AGP 2.0 compliant device at 0000:00:00.0.
agpgart: Putting AGP V2 device at 0000:00:00.0 into 4x mode
agpgart: Putting AGP V2 device at 0000:01:00.0 into 4x mode


10390962:  Kernel messages:
Uncovering SIS962 that hid as a SIS503 (compatible=1)
SIS5513: SiS 962/963 MuTIOL IDE UDMA133 controller

10397007:  kernel associates it with ohci1394
Suspicious kernel messages:
ohci1394: fw-host0: Unexpected PCI resource length of 1000!
ohci1394: fw-host0: OHCI-1394 1.0 (PCI): IRQ=[9]  MMIO=[ec000000-ec0007ff]  Max Packet=[2048]

PCI IDWorks?VendorDeviceDriverKernel
10390646YesSilicon Integrated Systems [SiS]SiS645DX Host & Memory & AGP Controllersis-agp
10390001YesSilicon Integrated Systems [SiS]Virtual PCI-to-PCI bridge (AGP)sis-agp
10390962Silicon Integrated Systems [SiS]SiS962 [MuTIOL Media IO]
10390016YesSilicon Integrated Systems [SiS]SiS961/2 SMBus Controlleri2c-sis96xv2.6.25-
10397007Silicon Integrated Systems [SiS]FireWire Controller
10395513YesSilicon Integrated Systems [SiS]5513 [IDE]pata_sisv2.6.25-
10397013YesSilicon Integrated Systems [SiS]AC'97 Modem Controllersnd-intel8x0mv2.6.25-
10397012YesSilicon Integrated Systems [SiS]AC'97 Sound Controllersnd-intel8x0v2.6.25-
10397001YesSilicon Integrated Systems [SiS]USB 1.1 Controllerusb-ohci,ohci-hcd
10397001YesSilicon Integrated Systems [SiS]USB 1.1 Controllerusb-ohci,ohci-hcd
10397001YesSilicon Integrated Systems [SiS]USB 1.1 Controllerusb-ohci,ohci-hcd
10397002YesSilicon Integrated Systems [SiS]USB 2.0 Controllerusb-ehci,ehci-hcd
10ec8139YesRealtek Semiconductor Co., Ltd.RTL-8139/8139C/8139C+8139cp,8139toov2.6.25-
15241410YesENE Technology IncCB1410 Cardbus Controlleryenta_socketv2.6.25-
10024c66YesATI Technologies IncRadeon RV250 [Mobility FireGL 9000]radeonfbv2.6.25-