Certain keys stop responding after sleep mode on Intel-based laptop (Intel(R) Celeron(R) N2840)

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Certain keys stop responding after sleep mode on Intel-based laptop (Intel(R) Celeron(R) N2840)

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Hi all,
I’ve noticed a recurring issue on my Intel-powered laptop (Intel(R) Celeron(R) CPU N2840 @ 2.16GHz, Windows 10) where the Shift, Ctrl, and Alt keys randomly stop working — especially after waking up from sleep mode. It doesn’t seem to be driver-related because I’ve updated everything through the Intel Driver & Support Assistant.

External keyboards sometimes work, but the problem often returns. Is this possibly related to the chipset or BIOS? Or could it be a deeper hardware controller issue?

Appreciate any advice — I’d really like to figure this out before resorting to a full keyboard replacement. Thanks in advance!

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