Lenovo ThinkPad X201

Append the acpi_backlight=video kernel parameter.

See Power management/Suspend and hibernate#Hibernation.

See dockd.

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

Use the following thinkfan^AUR configuration :

/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.

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

See coreboot documentation:

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.

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