Ethernet port disappeared

[Lockheed]

I haven't used it in some time, but I had to few days back and it is gone. I mean it is physically there, but no system detects any Eth card. Only WiFi is visible.

I tried lspci in Linux but it only shows WiFi card. No trace of the Ethernet card. I also tried Windows with same result. It's like the card is gone, or switched off on the hardware level, but I tried looking inside BIOS for some switches with no success.

Does anyone have any idea what could be wrong here?

My laptop is ThinkPad W500 (same as T500).

[dr_st]

Deep sleep?

Did you try connecting a cable to the Ethernet port?

[Lockheed]

Yes, I did. LEDs remain off.

[Lockheed]

So the ethernet port being botched is the only explanation?

[ajkula66]

So the ethernet port being botched is the only explanation?

That sounds about right.

Pull out the CMOS battery and leave it out for a few minutes to see whether that will do anything.

Good luck.

[Lockheed]

Turned out Ethernet was in fact disabled by an option deep down in Power/I-O settings. Strangely enough, removing CMOS battery did not reset it. I am happy to say it is now working fine.