Lenovo ThinkPad X201

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

Device Working
Intel graphics Yes
Network Yes
Wireless Yes
ALSA Yes
Touchpad Yes
Bluetooth Yes
Webcam Yes
Card reader Yes
Power management Limited
Backlight Yes

Configuration

Backlight

Append the acpi_backlight=video kernel parameter.

Hibernation

See Power management/Suspend and hibernate#Hibernation.

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#SNA issues and Intel graphics#DRI3 issues.

Hardware virtualization

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

lspci

Note: Model: X201, Type: 3680-WPH
00:00.0 Host bridge: Intel Corporation Core Processor DRAM Controller (rev 02)
00:02.0 VGA compatible controller: Intel Corporation Core Processor Integrated Graphics Controller (rev 02)
00:16.0 Communication controller: Intel Corporation 5 Series/3400 Series Chipset HECI Controller (rev 06)
00:19.0 Ethernet controller: Intel Corporation 82577LM Gigabit Network Connection (rev 06)
00:1a.0 USB controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 06)
00:1b.0 Audio device: Intel Corporation 5 Series/3400 Series Chipset High Definition Audio (rev 06)
00:1c.0 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 1 (rev 06)
00:1c.3 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 4 (rev 06)
00:1c.4 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 5 (rev 06)
00:1d.0 USB controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 06)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev a6)
00:1f.0 ISA bridge: Intel Corporation Mobile 5 Series Chipset LPC Interface Controller (rev 06)
00:1f.2 SATA controller: Intel Corporation 5 Series/3400 Series Chipset 6 port SATA AHCI Controller (rev 06)
00:1f.3 SMBus: Intel Corporation 5 Series/3400 Series Chipset SMBus Controller (rev 06)
00:1f.6 Signal processing controller: Intel Corporation 5 Series/3400 Series Chipset Thermal Subsystem (rev 06)
02:00.0 Network controller: Intel Corporation Centrino Ultimate-N 6300 (rev 35)
ff:00.0 Host bridge: Intel Corporation Core Processor QuickPath Architecture Generic Non-core Registers (rev 02)
ff:00.1 Host bridge: Intel Corporation Core Processor QuickPath Architecture System Address Decoder (rev 02)
ff:02.0 Host bridge: Intel Corporation Core Processor QPI Link 0 (rev 02)
ff:02.1 Host bridge: Intel Corporation 1st Generation Core i3/5/7 Processor QPI Physical 0 (rev 02)
ff:02.2 Host bridge: Intel Corporation 1st Generation Core i3/5/7 Processor Reserved (rev 02)
ff:02.3 Host bridge: Intel Corporation 1st Generation Core i3/5/7 Processor Reserved (rev 02)

See also