Ubuntu
alsa-driver package

Dell Insipiron 7000 with Ubuntu 19.10 lost audio drivers, with "dummy output" in Settings

Asked by Luke Bayes

A few days ago, I made the unforgivable mistake of attempting to connect a bluetooth headset to an otherwise mostly functional Ubuntu installation.

I'm running a Dell Inspiron 7000.

After installing bluez and blueman and other assorted packages, and never actually getting it working, I discovered the next day that I've lost all sound on this computer.

I have been running, "apt update && apt upgrade" on the regular, so it's entirely possible the timing is just coincidence.

At any rate, the Sound settings panel now shows, "Dummy Output" for audio out and zero choices for inputs. Of course, nothing makes noise either.

I've tried many things over about 4-6 hours of troubleshooting, including:

* Uninstall/reinstall alsa, pulseaudio and anything else Stackoverflow posters recommend
* Disable audio in the bios, reboot, re-enable audio in the bios, reboot
* Edit a variety of files in /etc/...

I have a nagging suspicion that my problem is rooted in this diagnostic output:

--------------------------------------------------------8<--------------------------------------------------------

!!Soundcards recognised by ALSA
!!-----------------------------

--- no soundcards ---

-------------------------------------------------------->8--------------------------------------------------------

Unfortunately, I'm not sure how to fix the problem.

Any help, tips or pointers would be greatly appreciated.

At any rate, here's the diagnostic output that was asked for by the Troubleshooting page that brought me here:

--------------------------------------------------------8<--------------------------------------------------------

!!################################
!!ALSA Information Script v 0.4.64
!!################################

!!Script ran on: Fri Mar 20 13:13:28 UTC 2020

!!Linux Distribution
!!------------------

Ubuntu 19.10 \n \l DISTRIB_ID=Ubuntu DISTRIB_DESCRIPTION="Ubuntu 19.10" NAME="Ubuntu" ID=ubuntu ID_LIKE=debian PRETTY_NAME="Ubuntu 19.10" HOME_URL="https://www.ubuntu.com/" SUPPORT_URL="https://help.ubuntu.com/" BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/" PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy" UBUNTU_CODENAME=eoan

!!DMI Information
!!---------------

Manufacturer: Dell Inc.
Product Name: Inspiron 7391 2n1
Product Version:
Firmware Version: 1.3.1
Board Vendor: Dell Inc.
Board Name: 04GRVX

!!ACPI Device Status Information
!!---------------

/sys/bus/acpi/devices/ACPI0003:00/status 15
/sys/bus/acpi/devices/ACPI000C:00/status 15
/sys/bus/acpi/devices/ACPI000E:00/status 15
/sys/bus/acpi/devices/CUST0000:00/status 15
/sys/bus/acpi/devices/CUST0000:01/status 15
/sys/bus/acpi/devices/DELL0960:00/status 15
/sys/bus/acpi/devices/DLLK0960:00/status 15
/sys/bus/acpi/devices/INT33A1:00/status 15
/sys/bus/acpi/devices/INT33D2:00/status 11
/sys/bus/acpi/devices/INT33D3:00/status 15
/sys/bus/acpi/devices/INT33D4:00/status 15
/sys/bus/acpi/devices/INT33D5:00/status 15
/sys/bus/acpi/devices/INT3400:00/status 15
/sys/bus/acpi/devices/INT3403:00/status 15
/sys/bus/acpi/devices/INT3403:01/status 15
/sys/bus/acpi/devices/INT3403:02/status 15
/sys/bus/acpi/devices/INT340E:00/status 15
/sys/bus/acpi/devices/INT34BB:00/status 15
/sys/bus/acpi/devices/INT3F0D:00/status 15
/sys/bus/acpi/devices/LNXPOWER:00/status 15
/sys/bus/acpi/devices/LNXPOWER:02/status 1
/sys/bus/acpi/devices/LNXPOWER:03/status 1
/sys/bus/acpi/devices/LNXPOWER:04/status 1
/sys/bus/acpi/devices/LNXPOWER:05/status 1
/sys/bus/acpi/devices/MSFT0101:00/status 15
/sys/bus/acpi/devices/PNP0103:00/status 15
/sys/bus/acpi/devices/PNP0C02:00/status 3
/sys/bus/acpi/devices/PNP0C02:01/status 3
/sys/bus/acpi/devices/PNP0C02:05/status 3
/sys/bus/acpi/devices/PNP0C09:00/status 15
/sys/bus/acpi/devices/PNP0C0A:00/status 31
/sys/bus/acpi/devices/PNP0C0C:00/status 15
/sys/bus/acpi/devices/PRP00001:00/status 11
/sys/bus/acpi/devices/USBC000:00/status 15
/sys/bus/acpi/devices/device:0f/status 15
/sys/bus/acpi/devices/device:6e/status 15

!!Kernel Information
!!------------------

Kernel release: 5.3.0-42-generic
Operating System: GNU/Linux
Architecture: x86_64
Processor: x86_64
SMP Enabled: Yes

!!ALSA Version
!!------------

Driver version: k5.3.0-42-generic
Library version: 1.1.9
Utilities version: 1.1.9

!!Loaded ALSA modules
!!-------------------

!!Sound Servers on this system
!!----------------------------

Pulseaudio:
      Installed - Yes (/usr/bin/pulseaudio)
      Running - Yes

!!Soundcards recognised by ALSA
!!-----------------------------

--- no soundcards ---

!!PCI Soundcards installed in the system
!!--------------------------------------

00:1f.3 Multimedia audio controller [0401]: Intel Corporation Device [8086:02c8]
 Subsystem: Dell Device [1028:0960]

!!Modprobe options (Sound related)
!!--------------------------------

snd_pcsp: index=-2
snd_usb_audio: index=-2
snd_atiixp_modem: index=-2
snd_intel8x0m: index=-2
snd_via82xx_modem: index=-2
snd_atiixp_modem: index=-2
snd_intel8x0m: index=-2
snd_via82xx_modem: index=-2
snd_usb_audio: index=-2
snd_usb_caiaq: index=-2
snd_usb_ua101: index=-2
snd_usb_us122l: index=-2
snd_usb_usx2y: index=-2
snd_cmipci: mpu_port=0x330 fm_port=0x388
snd_pcsp: index=-2
snd_usb_audio: index=-2

!!Loaded sound module options
!!---------------------------

!!ALSA Device nodes
!!-----------------

crw-rw---- 1 root audio 116, 1 Mar 20 09:11 /dev/snd/seq
crw-rw---- 1 root audio 116, 33 Mar 20 09:11 /dev/snd/timer

!!Aplay/Arecord output
!!--------------------

APLAY

aplay: device_list:272: no soundcards found...

ARECORD

arecord: device_list:272: no soundcards found...

!!Amixer output
!!-------------

!!Alsactl output
!!--------------

--startcollapse--
--endcollapse--

!!All Loaded Modules
!!------------------

ac97_bus
acpi_pad
acpi_tad
acpi_thermal_rel
aes_x86_64
aesni_intel
af_alg
ahci
algif_hash
algif_skcipher
autofs4
bluetooth
bnep
btbcm
btintel
btrtl
btusb
ccm
cfg80211
cmac
coretemp
crc32_pclmul
crct10dif_pclmul
cros_ec_core
cros_ec_ishtp
cryptd
crypto_simd
dcdbas
dell_laptop
dell_smbios
dell_smm_hwmon
dell_wmi
dell_wmi_descriptor
dm_crypt
drm
drm_kms_helper
ecc
ecdh_generic
fb_sys_fops
ghash_clmulni_intel
glue_helper
hid
hid_generic
hid_multitouch
hid_sensor_accel_3d
hid_sensor_custom
hid_sensor_gyro_3d
hid_sensor_hub
hid_sensor_iio_common
hid_sensor_incl_3d
hid_sensor_magn_3d
hid_sensor_rotation
hid_sensor_trigger
i2c_algo_bit
i2c_hid
i2c_i801
i915
idma64
industrialio
industrialio_triggered_buffer
input_leds
int3400_thermal
int3403_thermal
int340x_thermal_zone
intel_cstate
intel_hid
intel_ish_ipc
intel_ishtp
intel_ishtp_hid
intel_ishtp_loader
intel_lpss
intel_lpss_pci
intel_powerclamp
intel_rapl_common
intel_rapl_msr
intel_rapl_perf
intel_soc_dts_iosf
intel_wmi_thunderbolt
ip_tables
irqbypass
iwlmvm
iwlwifi
joydev
kfifo_buf
kvm
kvm_intel
ledtrig_audio
libahci
libarc4
lp
mac80211
mac_hid
mc
mei
mei_hdcp
mei_me
nls_iso8859_1
nvme
nvme_core
parport
parport_pc
pinctrl_cannonlake
pinctrl_intel
ppdev
processor_thermal_device
psmouse
sch_fq_codel
serio_raw
snd
snd_compress
snd_hda_codec
snd_hda_codec_generic
snd_hda_codec_hdmi
snd_hda_codec_realtek
snd_hda_core
snd_hda_ext_core
snd_hwdep
snd_pcm
snd_pcm_dmaengine
snd_rawmidi
snd_seq
snd_seq_device
snd_seq_midi
snd_seq_midi_event
snd_soc_acpi
snd_soc_acpi_intel_match
snd_soc_core
snd_soc_dmic
snd_soc_hdac_hda
snd_soc_hdac_hdmi
snd_sof
snd_sof_intel_byt
snd_sof_intel_hda
snd_sof_intel_hda_common
snd_sof_intel_ipc
snd_sof_xtensa_dsp
snd_timer
soc_button_array
sof_pci_dev
soundcore
sparse_keymap
syscopyarea
sysfillrect
sysimgblt
thunderbolt
typec
typec_ucsi
ucsi_acpi
uhid
usbhid
uvcvideo
video
videobuf2_common
videobuf2_memops
videobuf2_v4l2
videobuf2_vmalloc
videodev
virt_dma
wmi
wmi_bmof
x86_pkg_temp_thermal
x_tables

!!ALSA/HDA dmesg
!!--------------

[ 0.183180] ACPI: Added _OSI(Linux-Dell-Video)
[ 0.183181] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio)
[ 0.183181] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics)
--
[ 9.736178] sof-audio-pci 0000:00:1f.3: bound 0000:00:02.0 (ops i915_audio_component_bind_ops [i915])
[ 9.740644] sof-audio-pci 0000:00:1f.3: hda codecs found, mask 5
[ 9.740645] sof-audio-pci 0000:00:1f.3: using HDA machine driver skl_hda_dsp_generic now
[ 9.750048] input: CUST0000:00 27C6:0111 as /devices/pci0000:00/0000:00:15.1/i2c_designware.1/i2c-6/i2c-CUST0000:00/0018:27C6:0111.0002/input/input23

-------------------------------------------------------->8--------------------------------------------------------

Question information

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Ubuntu alsa-driver Edit question
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Solved by:
Luke Bayes
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Revision history for this message
Manfred Hampl (m-hampl) said : 		#1

There were already some other question similar to yours. There might be a problem with kernel version 5.3.0-42-generic. If you boot into an older kernel (from the grub menu), does it work then?

Revision history for this message
Manfred Hampl (m-hampl) said : 		#2

Several people have reported sound problems after an upgrade of the kernel packages, and you probably experience the same problem.
A bug report Bug #1868165 has already been created.

Revision history for this message
Luke Bayes (lukebayes) said : 		#3

Thank you for the responses, they were super helpful.

I was able to rollback my kernel to 5.3.18-050318-generic, and not only does audio work great, but I also had some success with Bluetooth on this rig as well.