Kernel.org: 5.1.15
sid (unstable): 4.19.37-5
buster (testing): 4.19.37-5
stretch (stable): 4.9.168-1+deb9u3
jessie (oldstable): 3.16.68-2

Debian GNU/Linux device driver check & report

Lenovo: P400

PCI IDWorks?VendorDeviceDriverKernel
80860154Intel Corporation3rd Gen Core processor DRAM Controller
80860166YesIntel Corporation3rd Gen Core processor Graphics Controlleri915v3.0.0-
80861e31Intel Corporation7 Series/C210 Series Chipset Family USB xHCI Host Controller
80861e3aIntel Corporation7 Series/C210 Series Chipset Family MEI Controller #1
80861e2dIntel Corporation7 Series/C210 Series Chipset Family USB Enhanced Host Controller #2
80861e20YesIntel Corporation7 Series/C210 Series Chipset Family High Definition Audio Controllersnd-hda-intel
80861e10Intel Corporation7 Series/C210 Series Chipset Family PCI Express Root Port 1
80861e12Intel Corporation7 Series/C210 Series Chipset Family PCI Express Root Port 2
80861e26Intel Corporation7 Series/C210 Series Chipset Family USB Enhanced Host Controller #1
80861e59YesIntel CorporationHM76 Express Chipset LPC ControlleriTCO_wdt
80861e03YesIntel Corporation7 Series Chipset Family 6-port SATA Controller [AHCI mode]ahci
80861e22YesIntel Corporation7 Series/C210 Series Chipset Family SMBus Controlleri2c-i801
10ec8136YesRealtek Semiconductor Co., Ltd.RTL8101E/RTL8102E PCI Express Fast Ethernet controllerr8169
808608b1Intel CorporationWireless 7260

Added a 7260 card got the bluetooth to work and ethernet works havent checked wifi but the screen brightness isnt changing per the gui you have to change before debian boots up (2015-12-17T17:56:29+00:00)