Lenovo ThinkPad T440s

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Hardware

Standard

Device Make/model Status Vendor ID / Product ID Kernel driver(s) Kernel version Notes
CPU Intel Core i5-4200U i5-4210U i5-4300U i7-4600U Works N/A N/A 4.3
GPU Intel HD Graphics 4400 Works 8086:0a16 i915 4.3
SATA SATA: Intel Lynx Point-LP SATA Controller Works 8086:9c03 ahci 4.3
Sound Intel HD Audio Works N/A snd_hda_intel 4.3
Ethernet Intel I218-LM PCI Express Gigabit Ethernet Works 8086:155a e1000e 4.3
Wi-Fi Intel 7260AN 802.11ac Works 8086:08b2 iwlwifi 4.3
Bluetooth Intel 7260AN USB Bluetooth Works N/A N/A 4.3
Touchpad SynPS/2 Synaptics TouchPad Works N/A N/A 4.3
Webcam Lite-On Technology Corp. USB webcam Works 04ca:7035 N/A 4.3
Fingerprint reader Validity VFS5017 USB fingerprint reader Works 138a:0017 N/A 4.3
Hotkeys N/A Works N/A N/A 4.3 BIOS >= Version 2.34-1.11
Sensors N/A Works N/A coretemp thinkpad_acpi 4.3
SD card reader Realtek RTS5227 PCI-E card reader Works 10ec:5227 rtsx_pci 4.3
Smart card reader Alcor Micro USB Smart Card reader Not tested 058f:9540 N/A N/A
NFC Broadcom BCM20792(?) SMBus NFC Controller Not tested N/A N/A N/A
Wireless WAN Ericsson N5321 Mobile Broadband HSPA+ Not tested N/A N/A N/A
root #lspci -nnk
00:00.0 Host bridge [0600]: Intel Corporation Haswell-ULT DRAM Controller [8086:0a04] (rev 0b)
	Subsystem: Lenovo Device [17aa:220c]
00:02.0 VGA compatible controller [0300]: Intel Corporation Haswell-ULT Integrated Graphics Controller [8086:0a16] (rev 0b)
	Subsystem: Lenovo Device [17aa:220c]
	Kernel driver in use: i915
00:03.0 Audio device [0403]: Intel Corporation Device [8086:0a0c] (rev 0b)
	Subsystem: Lenovo Device [17aa:220c]
	Kernel driver in use: snd_hda_intel
00:14.0 USB controller [0c03]: Intel Corporation Lynx Point-LP USB xHCI HC [8086:9c31] (rev 04)
	Subsystem: Lenovo Device [17aa:220c]
	Kernel driver in use: xhci_hcd
00:16.0 Communication controller [0780]: Intel Corporation Lynx Point-LP HECI #0 [8086:9c3a] (rev 04)
	Subsystem: Lenovo Device [17aa:220c]
	Kernel driver in use: mei_me
	Kernel modules: mei_me
00:19.0 Ethernet controller [0200]: Intel Corporation Ethernet Connection I218-LM [8086:155a] (rev 04)
	Subsystem: Lenovo Device [17aa:2214]
	Kernel driver in use: e1000e
00:1b.0 Audio device [0403]: Intel Corporation Lynx Point-LP HD Audio Controller [8086:9c20] (rev 04)
	Subsystem: Lenovo Device [17aa:220c]
	Kernel driver in use: snd_hda_intel
00:1c.0 PCI bridge [0604]: Intel Corporation Lynx Point-LP PCI Express Root Port 6 [8086:9c1a] (rev e4)
	Kernel driver in use: pcieport
00:1c.1 PCI bridge [0604]: Intel Corporation Lynx Point-LP PCI Express Root Port 3 [8086:9c14] (rev e4)
	Kernel driver in use: pcieport
00:1d.0 USB controller [0c03]: Intel Corporation Lynx Point-LP USB EHCI #1 [8086:9c26] (rev 04)
	Subsystem: Lenovo Device [17aa:220c]
	Kernel driver in use: ehci-pci
00:1f.0 ISA bridge [0601]: Intel Corporation Lynx Point-LP LPC Controller [8086:9c43] (rev 04)
	Subsystem: Lenovo Device [17aa:220c]
	Kernel driver in use: lpc_ich
00:1f.2 SATA controller [0106]: Intel Corporation Lynx Point-LP SATA Controller 1 [AHCI mode] [8086:9c03] (rev 04)
	Subsystem: Lenovo Device [17aa:220c]
	Kernel driver in use: ahci
00:1f.3 SMBus [0c05]: Intel Corporation Lynx Point-LP SMBus Controller [8086:9c22] (rev 04)
	Subsystem: Lenovo Device [17aa:220c]
	Kernel driver in use: i801_smbus
02:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. Device [10ec:5227] (rev 01)
	Subsystem: Lenovo Device [17aa:220c]
	Kernel driver in use: rtsx_pci
	Kernel modules: rtsx_pci
03:00.0 Network controller [0280]: Intel Corporation Wireless 7260 [8086:08b2] (rev 83)
	Subsystem: Intel Corporation Dual Band Wireless-AC 7260 [8086:c270]
	Kernel driver in use: iwlwifi
	Kernel modules: iwlwifi
root #lsusb
Bus 001 Device 003: ID 058f:9540 Alcor Micro Corp. 
Bus 001 Device 002: ID 8087:8000 Intel Corp. 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 002 Device 004: ID 04ca:7035 Lite-On Technology Corp. 
Bus 002 Device 003: ID 8087:07dc Intel Corp. 
Bus 002 Device 002: ID 138a:0017 Validity Sensors, Inc. 
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

ACPI / Power Management

Function Status Kernel version Notes
CPU frequency scaling Works 3.12 Driven by intel_pstate
GPU Powersaving (RC6) Works 3.12 Kernel 3.12 and later additionally support PC8+ with i915.allow_pc8=1 kernel parameter
SATA Power Management (ALPM) Borked 3.12 Transition from low power to high power state fails with ATA errors, see https://bugzilla.kernel.org/show_bug.cgi?id=72191
Suspend to RAM Works 3.12
Suspend to disk (hibernate) Works 3.12
Display backlight control Works 3.12 Driven by acpi_video. Need to hold down brightness keys for longer. Some users report that acpi_backlight=vendor kernel parameter is necessary to work around backlight control problems.
Keyboard backlight control Works 3.12

Installation

Firmware

The wireless card requires external firmware (iwlwifi-7260-16.ucode):

root #emerge --ask sys-kernel/linux-firmware

or

root #emerge --ask sys-firmware/iwl7260-ucode

Kernel

KERNEL Kernel version 3.12
Processor type and features  --->
  Processor family (Intel Core AVX2)
  <*> CPU microcode loading support
  [*] Intel microcode loading support
Power management and ACPI options  --->
  [*] ACPI (Advanced Configuration and Power Interface) Support  --->
    <*> Battery
    <*> Video
  CPU Frequency scaling  --->
    Default CPUFreq governor (performance)
    <*> 'performance' governor
    x86 CPU frequency scaling drivers  --->
      [*] Intel P state control
[*] Networking support  --->
  <*> Bluetooth subsystem support  --->
    Bluetooth device drivers  --->
      <*> HCI USB driver
  <*> Wireless  --->
    <*> cfg80211 - wireless configuration API
    <*> Generic IEEE 802.11 Networking Stack (mac80211)
  <*> RF switch subsystem support
Device Drivers  --->
  Misc devices  --->
    <*> Intel Management Engine Interface
    <*> ME Enabled Intel Chipsets
  SCSI device support  --->
    <*> SCSI disk support
    [*] Probe all LUNs on each SCSI device
  <*> Serial ATA and Parallel ATA drivers  --->
    <*> AHCI SATA support
  [*] Network device support  --->
    [*] Ethernet driver support  --->
      [*] Intel devices
        <M> Intel(R) PRO/1000 PCI-Express Gigabit Ethernet support
    [*] Wireless LAN  --->
      <M> Intel Wireless WiFi Next Gen AGN - Wireless-N/Advanced-N/Ultimate-N (iwlwifi)
      <M> Intel Wireless WiFi MVM Firmware support
  <*> I2C support  --->
    I2C Hardware Bus support  --->
      <*> Intel 82801 (ICH/PCH)
  <*> Hardware Monitoring support  --->
    <*> Intel Core/Core2/Atom temperature sensor
  [*] Watchdog Timer Support  --->
    <*> Intel TCO Timer/Watchdog
  Multifunction device drivers  --->
    <*> Intel ICH LPC
    <*> Realtek PCI-E card reader
  <*> Multimedia support  --->
    [*] Media USB Adapters  --->
      <*> USB Video Class (UVC)
  Graphics support  --->
    <*> Direct Rendering Manager (XFree86 4.1.0 and higher DRI support)
    <*> Intel 8xx/9xx/G3x/G4x/HD Graphics
      [*] Enable modesetting on intel by default
      [*] Enable legacy fbdev support for the modesettting intel driver
    Console display driver support  --->
      <*> Framebuffer Console support
  <*> Sound card support  --->
    <*> Advanced Linux Sound Architecture  --->
      [*] PCI sound devices  --->
        <*> Intel HD Audio  --->
          [*] Build HDMI/DisplayPort HD-audio codec support
  [*] USB support  --->
    <*> xHCI HCD (USB 3.0) support
    <*> EHCI HCD (USB 2.0) support
  <*> MMC/SD/SDIO card support
    <*> Realtek PCI-E SD/MMC Card Interface Driver
  [*] X86 Platform Specific Device Drivers  --->
    <*> ThinkPad ACPI Laptop Extras
  [*] IOMMU Hardware Support  --->
    [*] Support for Intel IOMMU using DMA Remapping Devices
    [*]  Enable Intel DMA Remapping Devices by default
    [*] Support for Interrupt Remapping
[*] Cryptographic API  --->
  <*> AES cipher algorithms (AES-NI)

Emerge

For the card reader:

root #emerge --ask sys-apps/pcsc-tools

For the fingerprint reader:

root #emerge --ask sys-auth/libfprint

For the touchpad:

root #emerge --ask x11-drivers/xf86-input-synaptics

Configuration

nVidia Optimus / Bumblebee support

This configuration allows for switching between integrated Intel GPU and nVidia GPU using primusrun (x11-misc/primus from bumblebee overlay).

Note
See also the Bumblebee Page

Hardware and PCI slots

root #lspci
00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 0b) 
04:00.0 3D controller: NVIDIA Corporation GK208M [GeForce GT 730M] (rev a1)

X.org server configuration

FILE /etc/X11/xorg.conf
Section "ServerLayout" 
     Identifier     "Layout0" 
     Screen          0 "intel" 
     InputDevice    "Keyboard0" "CoreKeyboard" 
     InputDevice    "Mouse0" "CorePointer" 
 EndSection 

 Section "Module" 
         Load "glx" 
 EndSection 

 Section "InputDevice" 
     # generated from data in "/etc/conf.d/gpm" 
     Identifier     "Mouse0" 
     Driver         "mouse" 
     Option         "Protocol" 
     Option         "Device" "/dev/input/mice" 
     Option         "Emulate3Buttons" "no" 
     Option         "ZAxisMapping" "4 5" 
 EndSection 

 Section "InputDevice" 
     Identifier     "Keyboard0" 
     Driver         "kbd" 
 EndSection 

 Section "Monitor" 
     Identifier     "Monitor0"
     VendorName     "Unknown" 
     ModelName      "Unknown" 
 EndSection 

 Section "Device" 
     Identifier     "intel" 
     Driver         "intel" 
     Option         "CustomEDID" "DFP-0:/lib/firmware/edid/1920x1080_T440s.bin" 
     BusID          "PCI:0:2:0" 
 EndSection 

 Section "Screen" 
     Identifier     "intel" 
     Device         "intel" 
     SubSection     "Display" 
         Depth       24 
         Modes      "1920x1080" 
     EndSubSection 
     Monitor        "Monitor0" 
 EndSection 

 Section "Extensions" 
     Option         "Composite" "Enable" 
 EndSection

Bumblebee configuration

FILE /etc/bumblebee/bumblebee.conf
[bumblebeed] 
 VirtualDisplay=:8 
 KeepUnusedXServer=false 
 ServerGroup=bumblebee 
 TurnCardOffAtExit=false 
 NoEcoModeOverride=false 
 Driver=nvidia 
 XorgConfDir=/etc/bumblebee/xorg.conf.d 

 [optirun] 
 Bridge=primus 
 VGLTransport=proxy 
 PrimusLibraryPath=/usr/lib/primus:/usr/lib32/primus 
 AllowFallbackToIGC=false 

 [driver-nvidia] 
 KernelDriver=nvidia 
 PMMethod=auto 
 LibraryPath=/usr/lib64/opengl/nvidia/lib:/usr/lib32/opengl/nvidia/lib:/usr/lib/opengl/nvidia/lib 
 XorgModulePath=/usr/lib64/opengl/nvidia/lib,/usr/lib64/opengl/nvidia/extensions,/usr/lib64/xorg/modules/drivers,/usr/lib64/xorg/modules 
 XorgConfFile=/etc/bumblebee/xorg.conf.nvidia 

 [driver-nouveau] 
 KernelDriver=nouveau 
 PMMethod=auto 
 XorgConfFile=/etc/bumblebee/xorg.conf.nouveau

Secondary X server for nVidia

FILE /etc/bumblebee/xorg.conf.nvidia
Section "Files" 
     ModulePath   "/usr/lib64/xorg/nvidia" 
     ModulePath   "/usr/lib64/xorg/modules" 
 EndSection 

 Section "ServerLayout" 
     Identifier  "Layout0" 
     Option      "AutoAddDevices" "false" 
     Option      "AutoAddGPU" "false" 
 EndSection 

 Section "Device" 
     Identifier  "DiscreteNvidia" 
     Driver      "nvidia" 
     VendorName  "NVIDIA Corporation" 

     Option "ProbeAllGpus" "false" 

     Option "NoLogo" "true" 
     Option "UseEDID" "false" 
     Option "UseDisplayDevice" "none" 

     # my settings 
     Option         "CustomEDID" "DFP-0:/lib/firmware/edid/1920x1080_T440s.bin" 
     BusID          "PCI:4:0:0" 
     Option         "UseEDID" "True" 
     Option         "ModeValidation" "NoVirtualSizeCheck" 
     Option         "ModeDebug" "True" 
 EndSection 

 # my screen 
 Section "Screen" 
     Identifier     "nvidia" 
     Device         "DiscreteNvidia" 
     Monitor        "Monitor0" 
     Option         "RenderAccel" "True" 
     Option         "NoRenderExtension" "False" 
     Option         "AllowGLXWithComposite" "True" 
     Option         "AddARGBGLXVisuals" "True" 
     Option         "DamageEvents" "True" 
     Option         "ConnectToAcpid" "True" 
     Option         "UseDisplayDevice" "none" 
     SubSection     "Display" 
         Depth       24 
         Modes      "1920x1080" 
     EndSubSection 
 EndSection 

 Section "Monitor" 
     Identifier "Monitor0" 
     VendorName "Unknown" 
     Modelname "Unknown" 
 EndSection

Trackpoint scrolling

With the new clickpad in the Thinkpad T440s, button events are now software based. This causes problems when using the classical combination of Xorg drivers: evdev for the trackpoint and synaptics for the touchpad. Since trackpoint scrolling (middle button + trackpoint movement) requires coordination between the two drivers, it does not work in the default configuration.

Working around the problem requires either

The second method is easier so it is described below.

libinput way

First add libinput to the INPUT_DEVICES variable.

FILE /etc/portage/make.confSet INPUT_DEVICES
INPUT_DEVICES="libinput"

After setting the INPUT_DEVICES variable remember to update the system using the following command so the changes take effect:

root #emerge --ask --changed-use --deep @world

After the update the packages dev-libs/libinput and x11-drivers/xf86-input-libinput should've been pulled in.

Next you need to add the following Xorg configuration file so that the driver is selected for the devices we want.

FILE /etc/X11/xorg.conf.d/90-libinput.conf
Section "InputClass"
        Identifier "libinput pointer catchall"
        MatchIsPointer "on"
        MatchDevicePath "/dev/input/event*"
        Driver "libinput"
EndSection

Section "InputClass"
        Identifier "libinput touchpad catchall"
        MatchIsTouchpad "on"
        MatchDevicePath "/dev/input/event*"
        Driver "libinput"
EndSection

After a reboot/xorg-server restart, trackpoint scrolling should work.

Troubleshooting

Fn keys (hotkeys) do not work properly

The BIOS should be updated to at least version 2.34-1.11 to fix the problem.

FILE BIOS 2.34-1.11 Changelog
CHANGES IN THIS RELEASE
  Version 2.34-1.11

[Important updates]
  Nothing.

[New functions or enhancements]
  Nothing.

[Problem fixes]
- Fixed an issue where some keys might not be correct when F1-F12 as primary
  function was enabled.

External resources

Retrieved from "https://wiki.gentoo.org/index.php?title=Lenovo_ThinkPad_T440s&oldid=1295328"