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c++ - Unable to set up SDL2 to run with audio (alsa) on ...
https://stackoverflow.com/questions/64706266/unable-to-set-up-sdl2-to-run-with-audio-alsa-on-linux-ubuntu-20-04-using-conan
What about just --build=all?It should compile all dependencies, but I'm not sure it will compile their dependencies as well. Ideally you want to identify which of the libraries you put in your conanfile actually depends on "libasound" and use --build=identified_library.Also, by identifying the library you can post an issue in that library's conan recipe repository.
SDL sound: Failed to open audio: No available audio device ...
https://forums.debian.net/viewtopic.php?t=112152
for PulseAudio (or ALSA), so it's trying to use /dev/dsp, which doesn't exist on many modern Linux systems (hence, SDL_Init (SDL_INIT_AUDIO) succeeds, but no devices are found when you try to open one). "apt-get install libasound2-dev …
Linux: Unable to init SDL mixer: ALSA: Couldn't open …
https://www.gog.com/forum/thimbleweed_park/linux_unable_to_init_sdl_mixer_alsa_couldnt_open_audio_device_no_such_device
I've also got problem with SDL Audio on OpenSuSE Leap 42.2: unable to init SDL: Audio target 'pulse'not available What worked for me was to change the Audio-Target with export SDL_AUDIODRIVER=alsa Probably for you, it could help to change …
SDL :: View topic - Couldn't open audio device: No ...
https://forums.libsdl.org/viewtopic.php?t=7609
If you built your own SDL, you probably didn't have development headers for PulseAudio (or ALSA), so it's trying to use /dev/dsp, which doesn't exist on many modern Linux systems (hence, SDL_Init(SDL_INIT_AUDIO) succeeds, but no devices are found when you try to open one). "apt-get install libasound2-dev libpulse-dev" and rebuild SDL...let the configure script find the new …
FAQUsingSDL - SDL Wiki
https://wiki.libsdl.org/FAQUsingSDL
You can set the environment variable "SDL_AUDIODRIVER" to the name of the driver you want to use. The drivers available depend on the platform and SDL compile-time options. Here is a partial list for some platforms: Linux Win32 What environment variables are used by SDL?
SDL_envvars - Simple DirectMedia Layer
https://www.libsdl.org/release/SDL-1.2.15/docs/html/sdlenvvars.html
SDL_AUDIODRIVER Selects the audio driver for SDL to use. order they are tried if this variable is not set: SDL_DISKAUDIOFILE The name of the output file for the "disk" audio driver. set, the name sdlaudio.rawis used. SDL_DISKAUDIODELAY For the "disk" audio driver, how long to wait (in ms) before writing The default is 150 ms. SDL_DSP_NOSELECT
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