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    D1开发板如何改成HDMI音频输出?

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      nideyida LV 5 last edited by

      我在玩D1哪吒开发板,用的是官方的Tina v1.01 版本SDK,连接了HDMI,根据官方文档把显示输出改成了HDMI:

      cd /sys/kernel/debug/dispdbg
      echo disp0 > name; echo switch1 > command; echo 4 10 0 0 0x4 0x101 0 0 0 8 > param; echo 1 > start;
      

      先做播放视频是从HDMI播的了,但是声音还是从3.5mm耳机口接的耳机出来,请问要怎么样才能把声音也从HDMI输出呢?
      想做一个类似OTT机顶盒的demo

      Kirin 1 Reply Last reply Reply Quote Share 0
      • Kirin
        陈塘关李靖 LV 6 @nideyida last edited by

        修改etc/asound.conf文件,将pcm.!default里面的playback.pcm,从"Playback"改成"PlaybackHDMI"
        alsa框架默认会从这个配置文件读取配置,配成HDMI输出就可以了

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