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Lenovo Staff
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My ThinkPad S540 attached to ThinkPad OneLink Dock. Is it possible to boot directly from the OneLink Dock without having the laptop lid open?


The current issue is that when pushing Power On button on the OneLink Dock with S540 lid closed, nothing happens unless I open the lid then it boots right away.


BIOS version 1.55 should fix it.


To get the BIOS, you can access Lenvoo support site or click here: BIOS Update Bootable CD for Windows 8.1 (64-bit), 8 (64-bit), 7 (32-bit, 64-bit) - ThinkPad S540


Changes on Version 1.55

UEFI: 1.55 / ECP: 1.55

  • (New) Added support for the UEFI DriverOrder feature.
  • (New) Updated the Diagnostics module to version 2.03.00.
  • (Fix) Fixed an issue where the power button did not work while the lid was closed.
  • (Fix) Fixed an issue where UEFI KeyShiftState was not correctly returned for some keys.
  • (Fix) Fixed an issue where SMBIOS type 15 structure (System Event Log) was incorrect.
  • (Fix) Fixed an issue where the LCD brightness control might not work on Linux.

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