Public bug reported:
๐งฉ Bug Description
After upgrading to kernel 6.8.0-60-generic on Linux Mint 22.1 (based on Ubuntu
24.04), both audio and webcam devices fail to initialize. Reverting to kernel
5.15.0-56-generic restores full functionality.
This is a hardware regression affecting:
Audio: Intel HDA controller (snd_hda_intel)
Webcam: USB UVC camera (1bcf:c001)
๐ป System Details
Laptop: MSI PE72 8RD
Motherboard: Micro-Star International
Firmware: E179FIMS.109 (June 1, 2018)
OS: Linux Mint 22.1 (based on Ubuntu 24.04 Noble)
Architecture: x86_64
๐ Regression Behavior in 6.8.x
๐๏ธ Audio Symptoms
Only โDummy Outputโ appears
dmesg shows:
perl
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snd_hda_intel 0000:00:1f.3: CORB reset timeout#1, CORBRP = 0
snd_hda_intel 0000:00:1f.3: no codecs found!
Sound works when booted with this kernel param:
ini
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snd-intel-dspcfg.dsp_driver=1
๐ท Webcam Symptoms
Detected briefly after boot:
yaml
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usb 1-3.3: Product: USB Camera
usb 1-3.3: Found UVC 1.00 device USB Camera (1bcf:c001)
But /dev/video0 is never created
Eventually disappears from lsusb
Not bound to uvcvideo driver
Resumes working under 5.15.0-56 without any boot parameter changes
โ
Expected Behavior (In Kernel 5.15.0-56)
snd_hda_intel detects codec and audio works normally
Webcam appears in lsusb, uvcvideo driver binds, and /dev/video0 is
present
๐งช Workarounds Tried
Added snd-intel-dspcfg.dsp_driver=1 to GRUB โ fixed audio but not webcam
Disabled USB autosuspend via usbcore.autosuspend=-1 โ no change for
webcam
Reinstalling uvcvideo, v4l-utils, linux-modules-extra, etc.
Booting 5.15 kernel restores all devices
๐ Additional Logs and Commands
uname -r on working kernel:
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5.15.0-56-generic
lsusb (6.8 - webcam not listed), but visible in early dmesg
ls -l /dev/video* โ missing in 6.8, present in 5.15
dmesg | grep snd โ shows HDA codec not found
usb-devices | grep -A20 -i camera โ webcam not bound to uvcvideo
๐ Reproducible:
Yes โ rebooting into 6.8 consistently causes both devices to fail.
โ๏ธ Additional Notes
This regression may affect other MSI laptops or systems with older UVC webcams
and Intel HDA audio.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/2110941
Title:
[regression] Audio and webcam devices not detected on MSI PE72 8RD in
kernel 6.8.x (works in 5.15.0-56)
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