09-09-2018 07:20 PM
I am running a P70 20ERCTO1WW (Win 7 Pro SP1) sometime in the past month or so I have had an issue with the function row. (I ran a mix of Windows and Lenovo updates about that time.)
Mute key does not illuminate the in key LED; but the system tray volume mixer does show mute and unmute.
Mic Key does not illuminate the in key LED.
Fn+F1 will mute the speakers and illuminate the LED in the Mute key across the keyboard.
Fn+F3 will increase volume and unmute a Fn+F1 Mute.
Vol+ Key will increase volume but not unmute a Fn+F1 Mute.
The in key LED were working on the Mute key and Mic key.
Are the Fn+F1-F4 are operating on a lower system or hardware level?
Are the Mute, Volume -/+, Mic keys on a higher OS level?
Fn+F5&F6 (display brightness) are working as expected.
Fn+F7 (Projector) no response
WinKey+X functions as expected.
Fn+F8 (Radio) no response
The Bluetooth radio with the Fn Key during the period of updates.
This is a problem because I haven't been able to re-enable the Bluetooth radio.
Fn+F9 (Config) no response
Fn+F10 (Search) no response
Fn+F11 (Task Switcher) no response
Fn+F12 (Task Switcher) no response
The missing LED makes it more difficult to maintain proper sound discipline.
Lenovo Update and Windows Update are current.
Solved! Go to Solution.
09-09-2018 07:30 PM - edited 09-09-2018 07:31 PM
You probably updated the power management driver. Its affecting a lot of people. Its affecting OSD and Fn keys. See below post. The solution is to ROLL back the power management driver.
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09-09-2018 07:52 PM