Public bug reported:
[Impact]
Kernel message shows this once keyboard backlight hotkey gets pressed:
[ 3285.474172] dell_wmi: Unknown key with type 0x0010 and code 0x003f pressed
It's for notification purpose, doesn't have any function.
[Fix]
Use KE_IGNORE for this type of event, so the keymap won't parse it.
[Test]
Once the patch is applied, the annoyance goes away.
[Regression Potential]
Low. This patch silence the useless message, no functional change.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Affects: linux (Ubuntu Bionic)
Importance: Undecided
Status: New
** Affects: linux (Ubuntu Cosmic)
Importance: Undecided
Status: New
** Affects: linux (Ubuntu Disco)
Importance: Undecided
Status: New
** Affects: linux (Ubuntu Ee-series)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Ee-series)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Bionic)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Disco)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Cosmic)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1817063
Title:
Silent "Unknown key" message when pressing keyboard backlight hotkey
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