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- Backlit Keyboard not turning on when using the keyboard

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10-28-2022 02:54 AM
As a preference, I have turned the backlit keyboard in the BIOS to turn off after 5 seconds. It is my expectation that with this option, the keyboard will automatically light up if the keyboard is used, and the BIOS setting then results in the backlight turning off automatically after 5 seconds of inactivity.
However, when I use the keyboard, the backlight does not turn on automatically. The only way I can get the backlit keyboard to turn on is to explicitly use the fn + F9 (which on my keyboard is the keyboard backlight toggle). When doing so, it immediately turns off the backlight, regardless of keyboard activity.
Is there an issue in the BIOS / Windows support - or is the only option to set the keyboard automatic turn off to "never" the only option?
(If the latter, the "turn off backlight after ... " feature in BIOS is effectively useless, and certainly not the behaviour I want or expect).
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10-28-2022 03:41 AM
Hmmm. Looks like my misunderstanding of the "Automatic Keyboard Backlit" option. If I uncheck this option, then the keyboard backlight behaves as I expect.
That is - the keyboard backlight turns on when I use the keyboard, and turns off automatically after the period of inactivity specified in the "Backlit keyboard timeout". (This option also has option "never" - which I do not use).
Can anyone explain the purpose of "Automatic Keyboard Backlit" option in the BIOS?
10-28-2022 03:41 AM
Hmmm. Looks like my misunderstanding of the "Automatic Keyboard Backlit" option. If I uncheck this option, then the keyboard backlight behaves as I expect.
That is - the keyboard backlight turns on when I use the keyboard, and turns off automatically after the period of inactivity specified in the "Backlit keyboard timeout". (This option also has option "never" - which I do not use).
Can anyone explain the purpose of "Automatic Keyboard Backlit" option in the BIOS?
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