Lenovo ThinkPad T550

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Tango-edit-clear.pngThis article or section does not follow the Laptop page guidelines.Tango-edit-clear.png

Reason: Needs a function keys table (Discuss in Talk:Lenovo ThinkPad T550)
Hardware PCI/USB ID Working?
Bluetooth (Intel) 8087:0a2a Yes
Bluetooth (Realtek) 0bda:8761 Untested
Webcam 04f2:b449 Yes
Ethernet 8086:15a3 Yes
8086:15a2 Yes
WiFi (Intel) 8086:095b Yes
WiFi (Realtek) 10ec:818b Yes
WWAN (Ericsson) 0bdb:193e Unknown
WWAN (Sierra) 1199:a001 Untested
GPU (Intel) 8086:1616 Yes
GPU (NVIDIA) 10de:1347 Untested
Touchpad Yes
Touchscreen Unknown Untested
Trackpoint Yes
Keyboard Yes
TPM Untested
Fingerprint reader 138a:0017 Yes
Smart card reader 058f:9540 Untested
SD card reader 10ec:5227 Yes
Audio 8086:9ca0 Yes

The larger 15-inch variant of the Lenovo ThinkPad T450.


See Backlight#Kernel command-line options to have the ACPI and backlight function properly. acpi_osi=Linux is another kernel parameter required for this.


See Lenovo ThinkPad T440s#Wireless; the T550 and the T440s share the same Realtek-variant WiFi card.


The T550 is only able to drive three displays at once. If you are using a one-to-three DisplayPort adapter, you will need to disable the laptop display (xrandr --output eDP1 --off) in order to use three external displays. Expect a heavy delay (1-2 seconds) while adjusting displays via DisplayPort with xrandr.

SD card reader

See Lenovo ThinkPad T440s#SD card reader; the T550 and T440s share the same SD card reader (but with different sub-device IDs). See also https://linux-hardware.org/?id=pci:10ec-5227-17aa-2223.


Enabling Always On USB in the UEFI BIOS makes the forward-most USB port on the right side of the laptop (i.e., the charging port) unusable in Linux. Disabling this feature in re-enables the port.

Function keys

Tango-inaccurate.pngThe factual accuracy of this article or section is disputed.Tango-inaccurate.png

Reason: The function keys likely work as specified in Lenovo ThinkPad T450(s)#Function keys. In other words, the function keys behave as function keys when Fn is pressed. This section probably needs rewording for more clarity. (The function key behaviour for the T550 is also described at [1].) (Discuss in Talk:Lenovo ThinkPad T550)

Function keys do not work without the FnLock on. To enable the FnLock, press Fn+Esc. The green light on the Fn key should turn on. Now you can use the Fn key like normal (i.e., with FnLock on Fn+F1 would equate to a XF86AudioMute to be handled by X/WM/whathaveyou).

See also