安卓x86独显HDMI声音解决

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How to fix HDMI audio in Android-x86 if it doesn’t work out of the box
如何修复HDMI音频在Android-x86如果它不工作的开箱即用
hernaaan海尔纳安        General一般        08/02/2018        2 minutos2分钟        
Okay. I’m writing this mini tutorial after several hours of reading and trying different things. I hope it works for you too.
好吧我写这个迷你教程后，几个小时的阅读和尝试不同的东西。我希望它也能为你工作。
Let’s say you have a laptop and boot Android-x86 from there. Maybe from HDD or maybe from USB, I think it doesn’t matter. And you connect your TV to it. You modify Grub to set HDMI-only output (‘video=LVDS-1:d’ did for me), and you get video.
假设你有一台笔记本电脑，从那里靴子Android-x86。也许从HDD或USB，我认为这并不重要。你把电视连接到它上，修改Grub设置为只输出HDMI（我是这样做的），然后你就可以看到视频了。
If you then notice you have no sound at all, try this. Oh, and beforehand, have a short WAV file stored in the system.
如果你注意到你没有声音，试试这个。哦，在此之前，在系统中存储一个简短的WAV文件。
1) Open a terminal (from Android menu) and ask for root access with ‘su’.
1)打开一个终端（从Android菜单），并要求根访问与'苏'.
2) Check what number your HDMI card is:
# cat /proc/asound/cards
2)检查您的HDMI卡的编号：
Generally, «0» is onboard audio and «1» is HDMI.
通常，«0»是板载音频，«1»是HDMI。
3) Check which devices are associated to your HDMI card:
# ls -l /dev/snd/
3)检查哪些设备与HDMI卡关联：
Here you have you take note of all the pcmC*D*p values, where C* is the number of the card from step 2.
在这里，您需要注意所有pcmC*D*p值，其中C* 是第2步中的卡号。
4) Activate sound for the card with the following commands:
# alsa_amixer -c1 set 'IEC958',0 on
# alsa_amixer -c1 set 'IEC958',1 on
# alsa_amixer -c1 set 'IEC958',2 on
# alsa_amixer -c1 set 'IEC958',3 on
4)使用以下命令激活卡的声音：
In this example, I’m using card «1» (check step 2 for yours).
在这个例子中，我使用卡«1»（检查步骤2为您的）。
5) Then, testing. To check which is the correct device you’ll need the WAV file mentioned before:
# alsa_aplay -Dplughw:1,3 /storage/path_to_file/sample.wav
# alsa_aplay -Dplughw:1,7 /storage/path_to_file/sample.wav
# alsa_aplay -Dplughw:1,8 /storage/path_to_file/sample.wav
# alsa_aplay -Dplughw:1,9 /storage/path_to_file/sample.wav
5)然后是测试。要检查哪个是正确的设备，您需要前面提到的WAV文件：
In this example, I checked devices «3», «7», «8» and «9» from card «1» (check step 2 for your card, and step 3 for its devices). You’ll hear sound in the right one.
在本例中，我检查了卡«1»中的设备«3»、«7»、«8»和«9»（检查您的卡的步骤2，检查其设备的步骤3）。你会听到右边的声音。
6) When you get the correct device, proceed to edit the boot script to make the changes permanent:
# vi /system/etc/init.sh
6)获得正确的设备后，继续编辑靴子脚本，以使更改永久化：
Add these lines in the «function init_hal_audio()» section, right below «esac»:
alsa_amixer -c1 set 'IEC958',0 on
alsa_amixer -c1 set 'IEC958',1 on
alsa_amixer -c1 set 'IEC958',2 on
alsa_amixer -c1 set 'IEC958',3 on
mv /dev/snd/pcmC1D3p /dev/snd/pcmC1D3p.original
ln -sf /dev/snd/pcmC1D7p /dev/snd/pcmC1D3p
在«function init_hal_audio（）»部分中添加以下行，就在«esac»下面：
Where:
«c1» is your HDMI card (step 2),
«pcmC1D7p» is your audible device (step 5),
and «pcmC1D3p» is the FIRST one of the card (as seen in step 3).
其中：«c1»是您的HDMI卡（步骤2），
«pcmC1D7p»是您的音频设备（第5步），
而«pcmC1D3p»是卡的第一个（如步骤3所示）。
This will allow you to keep the onboard sound if you choose to boot without HDMI video.
这将允许您保持板载的声音，如果您选择靴子没有HDMI视频。
7) Reboot to check if you did everything okay.
7)重新启动以检查您是否一切正常。

于是我就这么解决了

rm -rf /dev/snd/controlC0
rm -rf /dev/snd/hwC0D*
alsa_amixer -c1 set 'IEC958',0 on
alsa_amixer -c1 set 'IEC958',1 on
mv /dev/snd/pcmC1D3p /dev/snd/pcmC1D3p.original
ln -sf /dev/snd/pcmC1D7p /dev/snd/pcmC1D3p

不过英伟达独显不提供驱动，所以大部分都运行不好。按摩店貌似还行？