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List:       centos
Subject:    [CentOS] Sound card disappears on Acer laptop with latest kernel
From:       Frank Cox <theatre () sasktel ! net>
Date:       2021-06-04 21:30:47
Message-ID: 20210604153047.455bf42b23faecfb83558381 () sasktel ! net
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4.18.0-240.22.1.el8_3.x86_64 
Sound works as expected.

4.18.0-305.3.1.el8.x86_64
only "dummy output" shows up under the Sound Preferences on the desktop.

I guess there's a kernel bug somewhere that's causing the driver for that soundcard \
to not load?

The lshw command (when running kernel subversion 240.22.1, i.e. the "old kernel") \
tells me that it has this soundcard:

*-multimedia
             description: Multimedia audio controller
             product: Sunrise Point-LP HD Audio
             vendor: Intel Corporation
             physical id: 1f.3
             bus info: pci@0000:00:1f.3
             logical name: card0
             logical name: /dev/snd/controlC0
             logical name: /dev/snd/hwC0D0
             logical name: /dev/snd/hwC0D2
             logical name: /dev/snd/pcmC0D0c
             logical name: /dev/snd/pcmC0D0p
             logical name: /dev/snd/pcmC0D10p
             logical name: /dev/snd/pcmC0D2c
             logical name: /dev/snd/pcmC0D3p
             logical name: /dev/snd/pcmC0D7p
             logical name: /dev/snd/pcmC0D8p
             logical name: /dev/snd/pcmC0D9p
             version: 21
             width: 64 bits
             clock: 33MHz
             capabilities: pm msi bus_master cap_list
             configuration: driver=snd_hda_intel latency=32
             resources: irq:128 memory:df1a8000-df1abfff memory:df180000-df18ffff



-- 
MELVILLE THEATRE ~ Real D 3D Digital Cinema ~ www.melvilletheatre.com
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