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crazo7924

Member

Registered: 2024-11-14

Posts: 2

Re: Enabling Mute Fn Key LED on HP Laptop

I have figured it out for my HP Victus-16:

I got /proc/asound/card2/codec#0:Codec: Realtek ALC245

For turning it fully bright, use 0x8:

 sudo hda-verb /dev/snd/hwC2D0 0x20 0x500 0x0b && sudo hda-verb /dev/snd/hwC2D0 0x20 0x400 0x8 

for turning it off, use 0x0:

 sudo hda-verb /dev/snd/hwC2D0 0x20 0x500 0x0b && sudo hda-verb /dev/snd/hwC2D0 0x20 0x400 0x0 

I have mentioned "full bright" because when I set the last param as 0x7f, it became dim!

covid19

Member

From: Not Wuhan

Registered: 2020-04-20

Posts: 43

Re: Enabling Mute Fn Key LED on HP Laptop

I have an Elitebook 1050, only just now noticed I had LEDs for vol mute and mic mute
Been at it for about an hour and have some ..conflicting results

Both LEDs seem to be responding to the same codes, depending on when they are turned on/off

VOL MUTE LIGHT ON:
nid = 0x1, verb = 0x717, param = 0x1
value = 0x0

VOL MUTE LIGHT OFF:
nid = 0x1, verb = 0x717, param = 0x20
value = 0x0


MIC MUTE LIGHT ON:
nid = 0x1, verb = 0x716, param = 0x10
value = 0x0

MIC MUTE LIGHT OFF:
nid = 0x1, verb = 0x716, param = 0x20
value = 0x0

But here's the catch, if I first turn on mic mute with 0x717 and 0x1, then vol mute responds to 0x716 and 0x10 (0x20 to disable LED)
If I don't turn on mic mute and test vol mute LED directly, it doesn't respond until mic mute LED is enabled

Is this correct? Do I need to test further? Interested in getting these working now since I seem to be close.

# grep Codec /proc/asound/card*/codec*
/proc/asound/card0/codec#0:Codec: Conexant CX11970
/proc/asound/card0/codec#2:Codec: Intel Kabylake HDMI
/proc/asound/card1/codec#0:Codec: Nvidia GPU 80 HDMI/DP

Last edited by covid19 (2025-03-17 09:32:02)