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 CPU frequency scaling 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 the following kernel parameter:
intel_iommu=igfx_off
Hardware virtualization
If KVM claims virtualization support is disabled in BIOS, even with VT-x enabled, disable Intel TXT. [6]