Lenovo ThinkPad X201

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Reason: Needs a function keys and accessibility section (Discuss in Talk:Lenovo ThinkPad X201)

The Lenovo X201 is a dual-core subnotebook produced by Lenovo.

Hardware PCI/USB ID Working?
Touchpad PS/2 Yes
Keyboard Yes
GPU 8086:0046 Yes
Webcam 17ef:4816 Yes
Ethernet 8086:10ea Yes
Bluetooth 0a5c:217f Yes
Card reader 0bda:0159 Yes
Audio 8086:3b56 Yes
Wireless 8086:4239 Yes

Backlight

Append the acpi_backlight=video kernel parameter.

Troubleshooting

Overheating

There are some discussions concerning overheating-related shutdowns when running under full load (video encoding, etc). [1] [2]

Use the following thinkfanAUR configuration [3]:

/etc/thinkfan.conf
#X201 user specific
#lvl    low     up      RPM
(0,    0,      47)     # 0
(1,    42,     57)     # 2000
(2,    44,     59)     # 3300
(3,    50,     65)     # 3500
(4,    54,     70)     # 3500
(5,    60,     73)     # 3800
(6,    62,     83)     # 3800
(7,    65,     88)     # 4300
(127,  70,     32767)  # 5300

cpupower can be used for frequency scaling; see Cpufrequtils for more information. Undervolting is not possible with the Intel core iX cpu.

No speaker output

Try pressing the mute button (next to the Escape key). See this article for details.

No ACPI events

See coreboot documentation: [4] [5]

Display issues

See Intel graphics#AccelMethod and Intel graphics#DRI3 issues.

X201s: If planning to use VT-d, it is also recommended to add

intel_iommu=igfx_off

to the kernel parameters. see bug report.

Hardware virtualization

If KVM claims virtualization support is disabled in BIOS, even with VT-x enabled, disable Intel TXT. [6]

See also