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# Lenovo ThinkPad X201

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

The Lenovo X201[dead link 2021-11-13 ⓘ] is a dual-core subnotebook produced by Lenovo.

Hardware | PCI/USB ID | Working?
--- | --- | ---
Touchpad |  | Yes
Keyboard |  | Yes
Video |  | Yes
Webcam |  | Yes
Ethernet |  | Yes
Bluetooth |  | Yes
Card reader |  | Yes
Audio |  | Yes
Wireless |  | Yes

## Configuration

### Backlight

Append the `acpi_backlight=video` kernel parameter.

### Hibernation

See Power management/Suspend and hibernate#Hibernation.

### Dock

See dockd.

## 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

- ThinkWiki.org
- ThinkWiki.de

Category:

- Lenovo

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