Public bug reported:
[Impact]
On the HP OMEN Gaming Laptop 16-ap0xxx (DMI board 8E35, BIOS F.13) the
internal digital microphone array does not appear at all with the Ubuntu
26.04 kernel (7.0.0-42-generic). Only the headset-jack input is offered,
so the laptop has no built-in mic for calls or dictation.
The audio coprocessor is AMD ACP 1022:15e2 revision 0x62 (RPL). With the
stock kernel it is claimed by snd_rpl_pci_acp6x, which has no DMIC
support, and the yc driver (snd_pci_acp6x / snd_soc_acp6x_mach) neither
accepts revision 0x62 nor carries a DMI quirk for this board, so no
"acp6x" DMIC capture card is created.
[Fix]
Both pieces are in mainline since v7.1:
df4148a5a3cf18ee6e13e262079130b169ee51ac
ASoC: Add DMIC support for the AMD RPL platform
d63c219b7ff39f897da10c160a2edef76320f16c
ASoC: amd: yc: Add HP OMEN Gaming Laptop 16-ap0xxx product line in
quirk table
Possibly related, in v7.3 (resume path of the same driver):
2a31b5378c6db9c4a8d399e5d10d32cd4b732bef
ASoC: amd: yc: disable MSI on resume
The linux-oem-26.04 kernel (7.0.0-1017) already carries d63c219b, but not
df4148a5, so the microphone still does not work there either. Please
consider cherry-picking these into the resolute kernel.
[Test Plan]
1. On an affected machine with the stock kernel, run `arecord -l` and
`wpctl status`: no "acp6x" / "DMIC capture" card and no "Digital
Microphone" source.
2. Boot a kernel with the commits above. `arecord -l` should list
"acp6x ... DMIC capture dmic-hifi-0", `dmesg` should show "acp_yc_mach
...: Enabling ACP DMIC support via DMI", and a "Digital Microphone"
source should record speech.
3. Suspend and resume, then record again. The microphone should still
capture audio.
Verified so far on this machine: steps 1 and 2 behave as described, using
an out-of-tree build of the yc driver with the equivalent changes. After a
suspend/resume the DMIC capture fails with "pcm_read: read error:
Input/output error" until the PCI device is unbound and rebound; I have
not confirmed that 2a31b537 resolves that part, and no IO_PAGE_FAULT was
logged for the device.
[Where problems could occur]
df4148a5 lets the yc driver handle ACP revision 0x62, which on other RPL
machines is currently left to snd_rpl_pci_acp6x; a regression would show
up as a missing or misbehaving internal microphone on other AMD RPL
laptops. d63c219b is a DMI table entry and only affects this product
line. 2a31b537 only changes the system-resume path of the yc driver.
[Other info]
Hardware: HP OMEN Gaming Laptop 16-ap0xxx, board 8E35, BIOS F.13,
AMD ACP [1022:15e2] rev 62, Realtek ALC245
Kernel: Ubuntu 7.0.0-42.42-generic 7.0.14 (26.04.1 LTS)
Logs: The attached omen-8e35-logs.tar.gz contains the three requested logs:
- version.log (cat /proc/version_signature)
- lspci-vnvn.log (sudo lspci -vnvn)
- omen-8e35-mic-logs.txt (DMI, audio PCI devices and drivers, dkms
status, arecord -l, wpctl sources, and acp/dmic kernel messages)
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Attachment added: "omen-8e35-logs.tar.gz"
https://bugs.launchpad.net/bugs/2172370/+attachment/6013133/+files/omen-8e35-logs.tar.gz
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https://bugs.launchpad.net/bugs/2172370
Title:
HP OMEN Gaming Laptop 16-ap0xxx (board 8E35): internal microphone
missing on AMD ACP 1022:15e2 rev 0x62
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