Results 1 to 2 of 2

Thread: [Solved] No sound from my monitor: HDMI/DisplayPort unplugged

  1. #1
    Join Date
    Jan 2010
    Beans
    2

    [Solved] No sound from my monitor: HDMI/DisplayPort unplugged

    Hello, I` m using ubuntu 16.04 and lately i cant listen any sound from my monitor, I` m using a DisplayPort.

    In the audio settings the HDMI/DisplayPort is disappeared, I can only see S/PDIF and internal audio; I`ve installed pulse audio volume control and all HDMI/DisplayPorts are unplugged, I don`t know how to enable those ports.

    If I run the command aplay -l I can see this list:

    **** Lista di PLAYBACK dispositivi hardware ****scheda 0: SB [HDA ATI SB], dispositivo 0: ALC892 Analog [ALC892 Analog]
    Sottoperiferiche: 0/1
    Sottoperiferica #0: subdevice #0
    scheda 0: SB [HDA ATI SB], dispositivo 1: ALC892 Digital [ALC892 Digital]
    Sottoperiferiche: 1/1
    Sottoperiferica #0: subdevice #0
    scheda 1: HDMI [HDA ATI HDMI], dispositivo 3: HDMI 0 [HDMI 0]
    Sottoperiferiche: 0/1
    Sottoperiferica #0: subdevice #0
    scheda 1: HDMI [HDA ATI HDMI], dispositivo 7: HDMI 1 [HDMI 1]
    Sottoperiferiche: 1/1
    Sottoperiferica #0: subdevice #0
    scheda 1: HDMI [HDA ATI HDMI], dispositivo 8: HDMI 2 [HDMI 2]
    Sottoperiferiche: 1/1
    Sottoperiferica #0: subdevice #0
    scheda 1: HDMI [HDA ATI HDMI], dispositivo 9: HDMI 3 [HDMI 3]
    Sottoperiferiche: 1/1
    Sottoperiferica #0: subdevice #0

    I have a window partition on the same pc and the sound works as expected, so it is not an hardware problem.
    Last edited by OxySK; December 9th, 2017 at 11:46 AM.

  2. #2
    Join Date
    Jan 2010
    Beans
    2

    Re: No sound from my monitor: HDMI/DisplayPort unplugged

    I found a solution:

    Unfortunately, this is not an configuration issue but a problem of the current kernel. The original drivers for RX 480 and other systems will merged into kernel at 4.15, with lower kernels, some features do not work, e.g. sound. My current workaround is to use the AMD proprietary kernel from https://github.com/M-Bab/linux-kernel-amdgpu-binaries . It can be installed via:
    cd /tmp
    git --git-dir=/dev/null clone --depth=1 https://github.com/M-Bab/linux-kernel-amdgpu-binaries
    cd linux-kernel-amdgpu-binaries
    sudo dpkg -i *.deb
    (To use the kernel, reboot and eventually choose it in grub).
    Fortunately, ubuntu 18.04 will ship with 4.15 kernel (https://www.phoronix.com/scan.php?pa...LTS-Linux-4.15), so hopefully this will fix the issue.

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •