chassis_type 31 is "Convertible", so we expect the intel-vbtn
SW_TABLET_MODE reporting to work there.

There was one other HP model which had a bit of a weird issue, this was
fixed by:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d823346876a970522ff9e4d2b323c9b734dcc4de

But that workaround got dropped when we switched to ignoring
SW_TABLET_MODE on all devices where the chassis_type is not 31 or 32,
since the model which needed that fix ("HP Pavilion 11 x360") uses a
chassis_type of 10, so that workaround was no longer needed.

So now it seems that we should not have dropped the workaround as
possibly more HP models need it. If you can build your own 5.9.10 kernel
with the linked workaround applied, and test it that would be great.

There should be docs somewhere on how to build an ubuntu kernel with
patches applied yourself. If you do not feel up to doing this yourself,
then please say so, then one of the Ubuntu devs should be able to
provide a test kernel with the patch added for you.

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https://bugs.launchpad.net/bugs/1894017

Title:
  Keyboard not working

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