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Around 2024-04-12 my laptop keyboard stopped responding. Only rebooting gets the keyboard working again.

Experimenting showed the keyboard stops working after suspend, quite reliably.

$ dmidecode
...
System Information
        Manufacturer: Dell Inc.
        Product Name: XPS 13 9370

The boot parameters recommended in other threads i8042.reset i8042.nomux=1 did not help. (Was not exhaustive on this, in particular, didn't try dumbkbd)

What is causing the issue?

bsb
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2 Answers2

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I found a similar issue for a different distribution, due to a kernel bug
https://lore.kernel.org/linux-input/20240126160724.13278-1-hdegoede@redhat.com/

5.15.0-105-generic and 5.15.0-102-generic present were affected.

Downgrading my kernel to 5.15.0-101-generic is a temporary fix, the keyboard works after suspend (following https://askubuntu.com/a/779292/166514):

sudo apt-get install linux-headers-5.15.0-101 linux-headers-5.15.0-101-generic linux-image-5.15.0-101-generic linux-modules-extra-5.15.0-101-generic
sudo apt-mark manual linux-headers-5.15.0-101 linux-headers-5.15.0-101-generic linux-image-5.15.0-101-generic linux-modules-extra-5.15.0-101-generic

I suppose the long term fix is to wait for the upstream fix to flow in.

bsb
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0

I have the same problem with 6.5.0-*-generic on my Dell XPS 13 9370. I rebooted with 6.5.0-1023-oem and the keyboard now works fine after sleep.

glasseyes
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