The first warning is when I press the privacy screen button (fn-f2). The second is when I press the brightness down button (fn-f3). The third is when I press the brightness up button (fn-f4).
I do not see similar warnings after the privacy screen functionality is turned off and I press the brightness up or down hotkeys.
When the privacy screen functionality is enabled, I see the following warnings in the logs:
[188829.782403] hp_wmi: Unknown event_id - 20 - 0x46fe
[188834.848948] hp_wmi: Unknown event_id - 20 - 0x3c00
[188835.624987] hp_wmi: Unknown event_id - 20 - 0x4600
The first warning is when I press the privacy screen button (fn-f2). The second is when I press the brightness down button (fn-f3). The third is when I press the brightness up button (fn-f4).
I do not see similar warnings after the privacy screen functionality is turned off and I press the brightness up or down hotkeys.