Spyke

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diy

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Lenovo Legion Y540 Keyboard Issue

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No, however there are a couple other settings that are concerning:

  • Always On USB [Enabled] : The USB ports can charge external device during low power states.
  • Charge in Battery Mode [Enabled]: Enable or disable chargin external device when system is in hibernate or power-off state and in batter mode.
  • Fool Proof Fn Ctrl [Enabled]
  • DPTF [Enabled]
  • Slow Slew Rate for IA Domain [Enabled]
diy

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Lenovo Legion Y540 Keyboard Issue

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Yep, this is a very very common problem.

I do use an external keyboard for this computer but on linux, the usb errors cause kernel panic, and I'm sure I could find a way to disable that input but I have no idea.

The laptop is no longer under warranty, but this doesn't seem to be a hardware issue as the keyboard works perfectly on first start up. I have tried reseating the keyboard to the main board, but I haven't removed the mainboard itself, and I can't tell if there's any pinch points since the cable runs all the way behind the board, but the end looks clean.

diy

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Lenovo Legion Y540 Keyboard Issue

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Oh yea, I have completely disconnected the battery, the problem still persists. This becomes especially a problem with distros that have menu in the bootloader because the keyboard will only work in the bootloader then stop working in the os itself.

diy

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Lenovo Legion Y540 Keyboard Issue

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it doesn't give an error, it just says 'starting systemd udevd' and then hangs for a long time. It becomes completely unresponsive and I have to unplug it to get it working.

In windows, no, the external keyboard works regardless.