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While running an Ubuntu kernel (not a mainline or third-party kernel)
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apport-collect 1948006
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This change has been made by an automated script, maintained by the
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** Changed in: linux (Ubuntu)
Status: New => Incomplete
** Tags added: impish
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https://bugs.launchpad.net/bugs/1948006
Title:
Speaker Mute and Microphone Mute LED indicators not working on HP
Probook 430 G8
Status in linux package in Ubuntu:
Incomplete
Bug description:
The HP ProBook 430 G8 has LED indicators built into the F6 key and F8
key to indicate that the Speakers (F6) and Microphone (F8) are muted.
Pressing F6 correctly toggles the output of sound off and on, but the
indicator LED never illuminates. Pressing F8 correctly toggles the
Microphone input on and off, but again the indicator LED never
illuminates.
The expected operation would be that each of the LEDs would be
illuminated when their respective mutes are in effect.
lsb_release -rd:
Description: Ubuntu 21.10
Release: 21.10
cat /proc/version_signature:
Ubuntu 5.13.0-19.19-generic 5.13.14
apt-cache policy alsa-base:
alsa-base:
Installed: 1.0.25+dfsg-0ubuntu7
Candidate: 1.0.25+dfsg-0ubuntu7
Version table:
*** 1.0.25+dfsg-0ubuntu7 500
500 http://gb.archive.ubuntu.com/ubuntu impish/main amd64 Packages
500 http://gb.archive.ubuntu.com/ubuntu impish/main i386 Packages
100 /var/lib/dpkg/status
grep -i codec /proc/asound/card*/codec*:
/proc/asound/card0/codec#0:Codec: Realtek ALC236
/proc/asound/card0/codec#2:Codec: Intel Tigerlake HDMI
sudo lspci -nn -v -s 00:1f.3:
00:1f.3 Multimedia audio controller [0401]: Intel Corporation Tiger Lake-LP
Smart Sound Technology Audio Controller [8086:a0c8] (rev 20)
Subsystem: Hewlett-Packard Company Tiger Lake-LP Smart Sound Technology
Audio Controller [103c:87df]
Flags: bus master, fast devsel, latency 64, IRQ 168
Memory at 6003248000 (64-bit, non-prefetchable) [size=16K]
Memory at 6003000000 (64-bit, non-prefetchable) [size=1M]
Capabilities: [50] Power Management version 3
Capabilities: [80] Vendor Specific Information: Len=14 <?>
Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit+
Kernel driver in use: sof-audio-pci-intel-tgl
Kernel modules: snd_hda_intel, snd_sof_pci_intel_tgl
Using:
sudo hda-verb <device> 0x01 SET_GPIO_MASK <bitposition>
sudo hda-verb <device> 0x01 SET_GPIO_DIRECTION <bitposition>
sudo hda-verb <device> 0x01 SET_GPIO_DATA <bitposition>
... with /dev/snd/hwC0D0 as the <device> and <bitposition> set to
0x01, 0x02 in turn it is possible to see that the F8 (Mic Mute) LED is
connected to the GPIO associated with <bitposition> = 0x01, and the F6
(Speaker Mute) LED is connected to the GPIO associated with
<bitposition> = 0x02.
Code appears to exist to drive these LEDs (and is used by other HP
ProBook models) but it needs to be enabled when this specific Audio
Controller [103c:87df] is detected.
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