Lenovo ThinkPad T520
The larger 15-inch variant of the Lenovo ThinkPad T420.
| Hardware | PCI/USB ID | Working? |
|---|---|---|
| Bluetooth | 0a5c:217f | Yes |
| Webcam | 04f2:b217 | Yes |
| Ethernet | 8086:1502 | Yes |
| WLAN (Intel) | 8086:0084 | Yes |
8086:0085 | Yes | |
8086:4238 | Yes | |
| WLAN (Realtek) | 10ec:8176 | Yes |
| WWAN | 0bdb:1911 | |
| GPU (Intel) | Yes | |
| Yes | ||
| GPU (NVIDIA) | Yes | |
| Touchpad | Yes | |
| Trackpoint | Yes | |
| Keyboard | Yes | |
| Fingerprint reader | 147e:2016 | |
| Smart card reader | ||
| SD card reader | 1180:e822 | |
| Yes | ||
| Audio | Yes |
Accessibility
The appearance of the ThinkPad Setup program (i.e., the tool used to configure UEFI BIOS settings) is simple and uses contrasting colours, so it may work well with OCR software. A legend of keyboard navigation shortcuts is also clearly listed on the bottom of the screen.
The user guide has a section under Chapter 8, "Advanced configuration", titled "ThinkPad Setup" that highlights the steps need to configure the UEFI BIOS settings. Relevant keyboard shortcuts (including those needed to trigger certain features on device startup) are also mentioned throughout:
| Key | Effect |
|---|---|
| Interrupt normal startup and bring up the Startup menu | |
| Start the ThinkPad Setup program | |
| Bring up the Boot Menu window |
Firmware
fwupd does not support this device yet.
Graphics
Selecting the graphics device
(This section only applies if your laptop also comes with the NVIDIA graphics card.)
Selecting a graphics device can be done by entering the ThinkPad Setup program and selecting one of the following options from Config > Display > Graphics Device:
- Integrated Graphics
- Discrete Graphics
- NVIDIA Graphics
See Intel graphics, NVIDIA, and NVIDIA Optimus or Bumblebee for more details.
Screen freeze in Discrete Graphics mode
In Discrete Graphics mode, GRUB's framebuffer can freeze the screen before the login prompt appears. Disabling the framebuffer resolves this issue.
Touchpad
libinput does not support horizontal edge scrolling on the T520's touchpad.
Function keys
| Key | Visible?1 | Marked?2 | Effect |
|---|---|---|---|
| Yes | XF86Wakeup | ||
| Yes | Yes | ||
| Yes | Yes | ||
| Yes | Yes | XF86Sleep | |
| Yes | Yes | ||
| Yes | Yes | ||
Fn+F7 | Yes | Yes | |
| Yes | Yes | ||
| Yes | |||
| Yes | Yes | XF86Suspend | |
| Yes | Toggles the ThinkLight | ||
| Yes | Yes | XF86MonBrightnessUp | |
| Yes | Yes | ||
| Yes | None | ||
| Yes | Yes | ||
Fn+ScrollLock | Yes | Yes | |
| Yes | Yes | Control_L+Break | |
| Yes | Yes | ||
| Yes | Yes | ||
| Yes | Yes | ||
Fn+Left | Yes | Yes |
- The key is visible to and similar tools.
- The physical key has a symbol on it, which describes its function.
Fn once keeps the key in a pressed condition, similar to sticky keys. Pressing Fn twice will keep it in a locked stated until Fn is pressed again.See also
- https://www.thinkwiki.org/wiki/Category:T520 — Contains extensive and useful hardware information
- Product Specifications Reference (PSREF) — See pages 420–431 for the ThinkPad T520, T520i
- Hardware maintenance manual
- User guide