Dell Laptop - Audio problem

English Multimedia
1

I’ve just installed Opensuse Tubleweed with KDE on a Dell Latitude E7450 and I cannot make sound work.
The sound icon shows a “red minus” sign.
Audio Volume Devices panel shows “No input or output devices found”.

**YaST -> Hardware -> Sound **shows two Card Model:

  • Broadwell-U Audio Controller
  • Wildcat Point-LP High Definition Audio Controller
    They were not configured by default so I clicked on Edit -> Quick Automatic Setup.
    Now they are configured as sound card number 0 and 1 respectively, with Driver snd-hda-intel.

hwinfo --sound shows:

linux-dsro:~ # hwinfo --sound
14: PCI 1b.0: 0403 Audio device                                 
  [Created at pci.386]
  Unique ID: u1Nb.CdHEZ5cnZ66
  SysFS ID: /devices/pci0000:00/0000:00:1b.0
  SysFS BusID: 0000:00:1b.0
  Hardware Class: sound
  Model: "Intel Wildcat Point-LP High Definition Audio Controller"
  Vendor: pci 0x8086 "Intel Corporation"
  Device: pci 0x9ca0 "Wildcat Point-LP High Definition Audio Controller"
  SubVendor: pci 0x1028 "Dell"
  SubDevice: pci 0x062e 
  Revision: 0x03
  Driver: "snd_hda_intel"
  Driver Modules: "snd_hda_intel"
  Memory Range: 0xf7238000-0xf723bfff (rw,non-prefetchable)
  IRQ: 52 (341 events)
  Module Alias: "pci:v00008086d00009CA0sv00001028sd0000062Ebc04sc03i00"
  Driver Info #0:
    Driver Status: snd_hda_intel is active
    Driver Activation Cmd: "modprobe snd_hda_intel"
  Config Status: cfg=no, avail=yes, need=no, active=unknown

19: PCI 03.0: 0403 Audio device
  [Created at pci.386]
  Unique ID: 3hqH.8epEy2_rDK3
  SysFS ID: /devices/pci0000:00/0000:00:03.0
  SysFS BusID: 0000:00:03.0
  Hardware Class: sound
  Model: "Intel Broadwell-U Audio Controller"
  Vendor: pci 0x8086 "Intel Corporation"
  Device: pci 0x160c "Broadwell-U Audio Controller"
  SubVendor: pci 0x1028 "Dell"
  SubDevice: pci 0x062e 
  Revision: 0x09
  Driver: "snd_hda_intel"
  Driver Modules: "snd_hda_intel"
  Memory Range: 0xf723c000-0xf723ffff (rw,non-prefetchable)
  IRQ: 51 (88 events)
  Module Alias: "pci:v00008086d0000160Csv00001028sd0000062Ebc04sc03i00"
  Driver Info #0:
    Driver Status: snd_hda_intel is active
    Driver Activation Cmd: "modprobe snd_hda_intel"
  Config Status: cfg=yes, avail=yes, need=no, active=unknown

Speaker test result is:

linux-dsro:~ # speaker-test -c2 -l5 -twav

speaker-test 1.1.7

Playback device is default
Stream parameters are 48000Hz, S16_LE, 2 channels
WAV file(s)
ALSA lib pulse.c:243:(pulse_connect) PulseAudio: Unable to connect: Connection refused

Playback open error: -111,Connection refused

Is there any other test that I could do to understand what is wrong?

Thank you,
Max

2

It seems that logging in the system as normal user everything works fine.
Maybe the problems I described above were caused by some kind of limitation for the root user that I’m unaware of.
Thank you,
Max

3

You should never ever log into a GUI as root. There is never a need to do so and you can inadvertent damage things