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Why does GNOME (Ubuntu 18.04) not recognise my …

    https://askubuntu.com/questions/1136171/why-does-gnome-ubuntu-18-04-not-recognise-my-sound-output
    Opening Settings/Sound shows the Output volume greyed out and the box under 'Choose a device for sound output' is blank. It is as if the GUI is not aware of the existence of the internal speakers. Using Ctrl-Alt-F1 I can revisit the log …

Sound not working HDA-Intel Ubuntu 14.04 - Ask Ubuntu

    https://askubuntu.com/questions/515656/sound-not-working-hda-intel-ubuntu-14-04
    The problem could be ( if you have windows8 dual boot ) the main sound device is frozen . Then you have to shutdown computer from windows8, rebooting is not enough.If still not ok, try to post alsa info result: wiki.ubuntu.com/Audio/AlsaInfo

[ubuntu] Could not open audio device for playback …

    https://ubuntuforums.org/archive/index.php/t-800242.html
    udiotestsrc wave=sine freq=512 ! audioconvert ! audioresample ! gconfaudiosink profile=music: Could not open audio device for playback. Device is being used by another application. Heron. Sound worked just fine yesterday. Seen this as a bug-report on the internet after googling, but can not find any fix to it. All help will be apriciated: )

Mplayer sound error: "Could not open/initialize audio ...

    https://www.linuxquestions.org/questions/linux-software-2/mplayer-sound-error-could-not-open-initialize-audio-device-no-sound-154031/
    "Could not open/initialize audio device -> no sound" XMMS gives no error and continues to operate; a flash video that normally contains sound is silent. Here's dmesg: Linux version 2.4.21-0.13mdk ([email protected]) (gcc version 3.2.2 (Mandrake Linux 9.1 3.2.2-3mdk)) #1 Fri Mar 14 15:08:06 EST 2003 BIOS-provided physical RAM map:

Initializing SDL_Mixer gives error "No available audio device"

    https://stackoverflow.com/questions/10465202/initializing-sdl-mixer-gives-error-no-available-audio-device
    Then, SDL_Mixer gives an error "No available audio device." Here is the code where the error is thrown: using namespace std; void simple_sound_init () { if (SDL_Init (SDL_INIT_AUDIO) == -1) { fprintf (stderr, "init SDL error: %s\n", SDL_GetError ()); SDL_Quit (); exit (1); } if (Mix_OpenAudio (SOUNDSAMPLERATE, MIX_DEFAULT_FORMAT, 1, 1024) != 0) { fprintf (stderr, "initialize audio …

[SOLVED] No sound in mplayer2: Can't open audio device ...

    https://ubuntuforums.org/archive/index.php/t-2292408.html
    AUDIO: 44100 Hz, 2 ch, floatle, 192.0 kbit/6.80% (ratio: 24000->352800) Selected audio codec: [ffmp3float] afm: ffmpeg (FFmpeg MPEG layer-3 audio) ===== ===== Failed to initialize audio driver 'v4l2' Could not open/initialize audio device -> no sound. Audio: no sound Video: no video Exiting... (End of file)

SvxLink / Re: [Svxlink-devel] Upgraded Ubuntu and …

    https://sourceforge.net/p/svxlink/mailman/message/32257638/
    Re: [Svxlink-devel] Upgraded Ubuntu and SvxLink Can't Open Sound Card

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