Oh I see. The hardware is switching between the same key meaning
KEY_PREVIOUSSONG or KEY_F4. So I think when the bug occurs it must be
after KEY_F4 went down and never came up before the hardware switched to
KEY_PREVIOUSSONG mode. Or the hardware switched Fn-lock so even if the
F4 key was released, it's no longer known as F4 when released. So in
software the F4 key is believed to be stuck down.
This might be difficult to solve in software because KEY_PREVIOUSSONG is
not always on the F4 key. It could be elsewhere on the keyboard so we
can't just pretend they are the same key.
Unless there's a simple logic error in Mutter, I think this would need
to be solved with a hardware quirk in the kernel.
** Package changed: ubuntu => linux-hwe (Ubuntu)
** Changed in: linux-hwe (Ubuntu)
Status: Incomplete => New
** Package changed: linux-hwe (Ubuntu) => linux (Ubuntu)
** Also affects: mutter (Ubuntu)
Importance: Undecided
Status: New
** Changed in: mutter (Ubuntu)
Status: New => Opinion
** Summary changed:
- "Repeat keys" causes `ctrl` and `alt` keys to misbehave
+ [Dell XPS 15 9570] F4 key action repeats even when not held down
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https://bugs.launchpad.net/bugs/2112439
Title:
[Dell XPS 15 9570] F4 key action repeats even when not held down
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