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~-''Models covered''-~<<BR>>'''Lenovo ThinkPad T420''' ~-''Models covered''-~<<BR>>'''Lenovo !ThinkPad T420'''
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TODO Suspend-to-RAM works out of the box.

<<Include(InstallingDebianOn/PageFragmentLidSuspendSystemd/jessie)>>

<<Include(InstallingDebianOn/PageFragmentThinkpadIntelGraphicsPowerManagement/jessie)>>

=== laptop-mode-tools ===

<<Include(InstallingDebianOn/ThinkpadLaptopMode/jessie)>>

DebianOn is an effort to document how to install, configure and use Debian on some specific hardware. Therefore potential buyers would know if that hardware is supported and owners would know how get the best out of that hardware.

The purpose is not to duplicate the Debian Official Documentation, but to document how to install Debian on some specific hardware.

If you need help to get Debian running on your hardware, please have a look at our user support channels where you may find specific channels (mailing list, IRC channel) dedicated to certain types of hardware.

Translation(s): none

Models covered
Lenovo ThinkPad T420

  • 4177, 14.0" (1600x900), Intel Core i7-2640M, 8GB, 256 GB SSD, Intel HD Graphics 3000, Intel Centrino Ultimate-N 6300, Bluetooth 3.0, DVD burner, SD card reader, modem, express card reader.

Overall Status

Core Components

[ATTACH]

Boot Standard Kernel:

{OK}

LAN network card (Generic Ethernet):

{OK}

Detect CD/DVD (Generic DVD+RW) :

{OK}

Sound:

{OK}

Detect hard drives:

{OK}

Extra Features

CPU Frequency Scaling

{OK}

Hibernation

[?]

Sleep / Suspend

{OK}

Xorg

{OK}

- OpenGL

{OK}

- Resize-and-Rotate(randr)

{OK}

Switch to External Screen

{OK}

Mouse

- Built-in (Trackpoint)

{OK}

- Built-in (Touchpad)

{OK}

Bluetooth

[?]

Webcam

{OK}

Wireless/Wifi

X-(

Keyboard's Hotkeys

{OK}

Modem

[?]

Express card reader

[?]

SD card reader

[?]

External dock

{OK}

Legend :
{OK} = OK ; {X} Unsupported(No Driver) ; /!\ = Error (Couldn't get it working); [?] Unknown, Not Test ; [-] Not-applicable
{i} = Configuration Required; X-( = Only works with a non-free driver and or firmware

Configuration

Audio

The snd_hda_intel driver included in alsa-base works out of the box.

Dock audio

TODO

Power Management

Suspend-to-RAM works out of the box.

To prevent the laptop from suspending when the lid is closed, set the following in /etc/systemd/logind.conf:

HandleLidSwitch=lock

Putting the following kernel module options in /etc/modprobe.d/i915.conf has been suggested to reduce the power consumption of the GPU at rest:

options i915 i915_enable_rc6=7 i915_enable_fbc=1 lvds_downclock=1

laptop-mode-tools

WiFi

TODO

System Summary

lspci

lsusb

TODO

Resources

Attachments

Some configuration files and sample outputs.

  • [get | view] (2014-06-09 12:47:30, 10.4 KB) [[attachment:dmidecode.Jessie_Thinkpad_T420.txt]]
  • [get | view] (2014-06-09 12:48:21, 5.2 KB) [[attachment:lsmod.Jessie_Thinkpad_T420.txt]]
  • [get | view] (2014-06-09 12:41:40, 7.8 KB) [[attachment:lspci.Jessie_Thinkpad_T420.txt]]
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CategoryLaptopComputer CategoryDebianOn