No monitor sound (DisplayPort)

Support Sound
1

Hi everyone. New Manjaro user here.

Just installed Manjaro XFCE to dualboot with Windows 10. Sadly I’m not getting any sound from my monitor, although it works when I plug a headset in my PC.

In the Volume Control the soundbar is moving up and down as if there is sound registered, its just not coming through the speakers.

I have downgraded to the latest LTS kernel (5.4).

In case you find it useful:

System:    Host: chr1s-manjaro Kernel: 5.4.60-2-MANJARO x86_64 bits: 64 Desktop: Xfce 4.14.2 Distro: Manjaro Linux 
Machine:   Type: Desktop Mobo: Micro-Star model: B450M MORTAR MAX (MS-7B89) v: 1.0 serial: <superuser/root required> 
           UEFI: American Megatrends v: 2.60 date: 12/30/2019 
CPU:       Topology: 6-Core model: AMD Ryzen 5 3600 bits: 64 type: MT MCP L2 cache: 3072 KiB 
           Speed: 3598 MHz min/max: 2200/3600 MHz Core speeds (MHz): 1: 3595 2: 2055 3: 2194 4: 2195 5: 2056 6: 2199 7: 2200 
           8: 2198 9: 3598 10: 2051 11: 2053 12: 2198 
Graphics:  Device-1: NVIDIA TU116 [GeForce GTX 1650 SUPER] driver: nouveau v: kernel 
           Display: x11 server: X.Org 1.20.8 driver: modesetting,nouveau resolution: 1920x1080~120Hz 
           OpenGL: renderer: llvmpipe (LLVM 10.0.1 256 bits) v: 3.3 Mesa 20.1.6 
Audio:     Device-1: NVIDIA TU116 High Definition Audio driver: snd_hda_intel 
           Device-2: Advanced Micro Devices [AMD] Starship/Matisse HD Audio driver: snd_hda_intel 
           Sound Server: ALSA v: k5.4.60-2-MANJARO 
Network:   Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet driver: r8169 
           IF: enp34s0 state: up speed: 1000 Mbps duplex: full mac: 2c:f0:5d:04:e8:fc 
Drives:    Local Storage: total: 465.76 GiB used: 9.22 GiB (2.0%) 
           ID-1: /dev/sda vendor: Crucial model: CT500MX500SSD1 size: 465.76 GiB 
Partition: ID-1: / size: 95.13 GiB used: 9.22 GiB (9.7%) fs: ext4 dev: /dev/sda6 
Swap:      ID-1: swap-1 type: partition size: 7.81 GiB used: 0 KiB (0.0%) dev: /dev/sda5 
Sensors:   System Temperatures: cpu: 44.2 C mobo: N/A gpu: nouveau temp: 22 C 
           Fan Speeds (RPM): N/A gpu: nouveau fan: 1615 
Info:      Processes: 257 Uptime: 35m Memory: 15.65 GiB used: 1.32 GiB (8.4%) Shell: Bash inxi: 3.1.05

Hope you can help, cheers :slight_smile:

2

Hello!

maybe try this. Open a terminal. Type in:

alsamixer

type F6 and change from standard to another soundcard. Try to adjust the sound there.

Sidenote: alsa is the soundsystem and pulseaudio works on top as “layer” to control alsa more comfortable.

3

Thanks for you answer!

I can change in between:

  • (default)
    0 HDA NVidia
    1 HD-Audio Generic

Where especially 1 has several adjustments available. How come, I don’t think I’m able to save changes?

When I write up alsamixer after changing soundcard, it’s back at - (default).

4

The changes you make in alsamixer are normally saved immediately.

Think of this:

Application makes sound -> goes to alsa -> and then to pulseaudio

alsamixer can be adjusted and pulseaudio, but if alsa is set to 0 then pulseaudio wont get any sound to play.

5

I see. When i just run alsamixer I get a different screen than if I run sudo alsamixer.

Running sudo alsamixer makes the HD NVidia pop up as selected, where there is only S/PDIF’s showing with no adjustments possible. However, PulseAudio is not showing no matter which soundcard I change to.

Running alsamixer makes the default PulseAudio pop up where I can adjust the master item and I can switch between soundcards.

6

Solution to this problem turned out to be the open-source gpu driver. Installing the proprietary one and removing the open-source one made it work.

7

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