[gentoo-user] Laptop internal speakers no longer working after recent updates

[Alexander Puchmayr]

Hi there,

I have a weird problem on my Lenovo P14s laptop. Before I applied a world 
upgrade (based on August 22 state portage), the internal speaker of the laptop 
worked fine, but now its all silent, although all mixer levels are 100% and no 
channel is muted. 

Observed facts:
* Connecting a HDMI tv-set produces sound over the tv-set properly
* Booting Win10: Internal speakers working fine --> no hw issue
* Connecting headphone via audio jack under linux - no sound.
* Reverting to backup makes sound work again --> config/sw problem introduced 
by update
* In plasma's system settings/audio tray, the Speaker output device is not 
shown -- only 3xHDMI (The analog speaker seems to have gone)

The kernel is exactly the same as before the upgrade, didn't recompile it 
(sys-kernel/gentoo-sources-5.12.0) --> no kernel issue

Relevant packet changes:
sys-kernel/linux-firmware-20210511 -> sys-kernel/linux-firmware-20210716
dev-python/pyalsa-1.1.6-r1 = dev-python/pyalsa-1.1.6-r1
Media-libs/alsa-lib-1.2.3.2-r1 -> media-libs/alsa-lib-1.2.4
Media-libs/alsa-topology-conf-1.2.3 -> media-libs/alsa-topology-conf-1.2.4
Media-libs/alsa-ucm-conf-1.2.3 -> media-libs/alsa-ucm-conf-1.2.4
Media-plugins/alsa-plugins-1.2.2 = media-plugins/alsa-plugins-1.2.2
Media-sound/alsa-tools-1.2.2-r1 = media-sound/alsa-tools-1.2.2-r1
Media-sound/alsa-utils-1.2.3 -> media-sound/alsa-utils-1.2.4
Media-libs/pulseaudio-qt-1.2 = media-libs/pulseaudio-qt-1.2
Media-plugins/gst-plugins-pulse-1.16.3 = media-plugins/gst-plugins-
pulse-1.16.3
Media-sound/pulseaudio-13.0-r1 = media-sound/pulseaudio-13.0-r1
Kde-plasma/plasma-meta-5.20.5 -> 5.21.5 (including all dependencies)


I tried downgrading linux-firmware to the old version from the backup -- did 
not help.
I tried logging in from a completely fresh account to exclude any bad config in 
the local home directory -> no success.

Any further ideas?

Thanks, Alex

PS: lspci shows
00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir Root Complex
00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Renoir IOMMU
00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir PCIe Dummy Host 
Bridge
00:02.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir PCIe Dummy Host 
Bridge
00:02.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir PCIe GPP Bridge
00:02.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir PCIe GPP Bridge
00:02.3 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir PCIe GPP Bridge
00:02.4 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir PCIe GPP Bridge
00:02.6 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir PCIe GPP Bridge
00:02.7 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir PCIe GPP Bridge
00:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir PCIe Dummy Host 
Bridge
00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir Internal PCIe 
GPP Bridge to Bus
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 
51)
00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 51)
00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir Device 24: 
Function 0
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir Device 24: 
Function 1
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir Device 24: 
Function 2
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir Device 24: 
Function 3
00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir Device 24: 
Function 4
00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir Device 24: 
Function 5
00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir Device 24: 
Function 6
00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir Device 24: 
Function 7
01:00.0 Non-Volatile memory controller: Samsung Electronics Co Ltd NVMe SSD 
Controller SM981/PM981/PM983
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 
PCI Express Gigabit Ethernet Controller (rev 0e)
02:00.1 Serial controller: Realtek Semiconductor Co., Ltd. Device 816a (rev 
0e)
02:00.2 Serial controller: Realtek Semiconductor Co., Ltd. Device 816b (rev 
0e)
02:00.3 IPMI Interface: Realtek Semiconductor Co., Ltd. Device 816c (rev 0e)
02:00.4 USB controller: Realtek Semiconductor Co., Ltd. Device 816d (rev 0e)
03:00.0 Network controller: Intel Corporation Wi-Fi 6 AX200 (rev 1a)
04:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS522A PCI 
Express Card Reader (rev 01)
05:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 
PCI Express Gigabit Ethernet Controller (rev 15)
06:00.0 USB controller: Renesas Technology Corp. uPD720202 USB 3.0 Host 
Controller (rev 02)
07:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] 
Renoir (rev d1)
07:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Device 1637
07:00.2 Encryption controller: Advanced Micro Devices, Inc. [AMD] Family 17h 
(Models 10h-1fh) Platform Security Processor
07:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Renoir USB 3.1
07:00.4 USB controller: Advanced Micro Devices, Inc. [AMD] Renoir USB 3.1
07:00.5 Multimedia controller: Advanced Micro Devices, Inc. [AMD] Raven/
Raven2/FireFlight/Renoir Audio Processor (rev 01)
07:00.6 Audio device: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 
10h-1fh) HD Audio Controller