> Kernel says: x [1266..5678], y [1162..4694]
> Touchpad sends: x [1266..5678], y [1161..4694] -^C

unless I'm reading that wrong, the kernel reports exactly the same range
as the touchpad sends, so there should be no need for the hwdb to carry
x/y values overridding the kernel-reported ranges

In upstream systemd, this commit was added for your system's touchpad:
https://github.com/systemd/systemd/commit/2ceefe45873d0265fb99bc5757593e5bbb2c732b

That commit is included in focal. If that isn't working right for you,
I'd suggest opening a merge request, or at least a bug, upstream so they
can review/accept any further changes, and if accepted we can consider
backporting the change.


** Changed in: libinput (Ubuntu)
       Status: New => Invalid

** Changed in: systemd (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1896540

Title:
  Incorrectly specified Touchpad size for Lenovo T490

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