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On Wednesday, 19 February 2020 17:32:46 GMT n952162 wrote: |
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> On 2020-02-19 15:37, n952162 wrote: |
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> > On 2020-02-19 10:48, Adam Carter wrote: |
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> >> On Wed, Feb 19, 2020 at 8:06 PM <n952162@×××.de |
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> >> |
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> >> <mailto:n952162@×××.de>> wrote: |
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> >> I can't play audio from my VBox. The host system only plays |
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> >> audio through the second sound card (1). The VBox offers me OSS |
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> >> or the null driver. The Alsa and pulseaudio pages say OSS is |
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> >> "deprecated". Is Oracle out of the picture? I can't find the |
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> >> straight dope. |
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> >> |
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> >> Do I have to convince VBox to talk to a different sound card? |
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> >> |
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> >> Which vbox version and what are your use flags? |
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> >> |
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> >> FWIW, for me; |
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> >> app-emulation/virtualbox-6.1.2::gentoo was built with the following: |
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> >> USE="alsa opengl opus pam pulseaudio qt5 sdk udev -debug -doc -dtrace |
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> >> -headless -java -libressl -lvm -pax_kernel -python -vboxwebsrv -vnc" |
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> >> ABI_X86="(64)" PYTHON_SINGLE_TARGET="python3_6 -python2_7 -python3_7 |
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> >> -python3_8" PYTHON_TARGETS="python2_7 python3_6 -python3_7 -python3_8" |
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> >> |
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> >> So i can use ALSA or pulse. |
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> > |
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> > Okay, that's a good tip. I'll try those use flags - I have none set. |
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> > |
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> > I'm at virtualbox-5.2.32, which I just emerged in the last couple of |
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> > days, using this profile: |
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> > |
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> > [16] default/linux/amd64/17.1 (stable) * |
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> |
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> I added alsa and pulseaudio and it didn't help. Then I noticed that |
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> opus has something to do with the soundcard so I emerged that with -vU |
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> but nothing needed to be done. |
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> |
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> It seems like VBox is interfacing directly with "the" sound card and |
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> even working correctly (e.g. aplay some-file takes about the right |
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> amount of time until it ends error-free), but unfortunately, I have 2 |
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> sound cards and the first doesn't work. |
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> |
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> Perhaps I could map the one to the other soundcard using .asoundrc? |
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> Unfortunately, I can find no grammar for that file. |
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|
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Two outputs, one HDMI, the other analogue on this laptop: |
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|
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$ aplay -l |
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**** List of PLAYBACK Hardware Devices **** |
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card 0: HDMI [HDA ATI HDMI], device 3: Generic Digital [Generic Digital] |
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Subdevices: 1/1 |
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Subdevice #0: subdevice #0 |
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card 1: Generic [HD-Audio Generic], device 0: CX20757 Analog [CX20757 Analog] |
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Subdevices: 1/1 |
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Subdevice #0: subdevice #0 |
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|
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This syntax swaps them over, so I can get sound out of the speakers: |
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|
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$ cat /etc/asound.conf |
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#pcm_slave.slave_rate48000Hz { |
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# pcm "hw:1,0" |
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## This is the rate the sound card does. |
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## Any random input rates are resampled to this. |
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# rate 48000 |
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#} |
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#pcm.rate44100Hz { |
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# type plug |
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# slave slave_rate48000Hz |
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#} |
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|
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defaults.pcm.card 1 |
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defaults.pcm.device 0 |
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defaults.ctl.card 1 |
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|
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-- |
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Regards, |
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|
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Mick |
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