偶尔出现重启无声音，声音自动设置为HDMI，调整到hd线缆后又有声音，终端输出
linux:~$ pacmd list-cards
2 card(s) available.
    index: 0
        name:
        driver:
        owner module: 6
        properties:
                alsa.card = "0"
                alsa.card_name = "HDA ATI HDMI"
                alsa.long_card_name = "HDA ATI HDMI at 0xfeb44000 irq 38"
                alsa.driver_name = "snd_hda_intel"
                device.bus_path = "pci-0000:00:01.1"
                sysfs.path = "/devices/pci0000:00/0000:00:01.1/sound/card0"
                device.bus = "pci"
                device.vendor.id = "1002"
                device.vendor.name = "Advanced Micro Devices, Inc. [AMD/ATI]"
                device.product.id = "9902"
                device.product.name = "Trinity HDMI Audio Controller"
                device.form_factor = "internal"
                device.string = "0"
                device.description = "内置音频"
                module-udev-detect.discovered = "1"
                device.icon_name = "audio-card-pci"
        profiles:
                output:hdmi-stereo: Digital Stereo (HDMI) 输出 (priority 5400, available: no)
                output:hdmi-surround: Digital Surround 5.1 (HDMI) 输出 (priority 300, available: no)
                output:hdmi-surround71: Digital Surround 7.1 (HDMI) 输出 (priority 300, available: no)
                off: 关 (priority 0, available: unknown)
        active profile:
        sinks:
                alsa_output.pci-0000_00_01.1.hdmi-stereo/#0: 内置音频 Digital Stereo (HDMI)
        sources:
                alsa_output.pci-0000_00_01.1.hdmi-stereo.monitor/#0: Monitor of 内置音频 Digital Stereo (HDMI)
        ports:
                hdmi-output-0: HDMI / DisplayPort (priority 5900, latency offset 0 usec, available: no)
                        properties:
                                device.icon_name = "video-display"
    index: 1
        name:
        driver:
        owner module: 7
        properties:
                alsa.card = "1"
                alsa.card_name = "HD-Audio Generic"
                alsa.long_card_name = "HD-Audio Generic at 0xfeb40000 irq 16"
                alsa.driver_name = "snd_hda_intel"
                device.bus_path = "pci-0000:00:14.2"
                sysfs.path = "/devices/pci0000:00/0000:00:14.2/sound/card1"
                device.bus = "pci"
                device.vendor.id = "1022"
                device.vendor.name = "Advanced Micro Devices, Inc. [AMD]"
                device.product.id = "780d"
                device.product.name = "FCH Azalia Controller"
                device.form_factor = "internal"
                device.string = "1"
                device.description = "内置音频"
                module-udev-detect.discovered = "1"
                device.icon_name = "audio-card-pci"
        profiles:
                input:analog-stereo: 模拟立体声 输入 (priority 60, available: no)
                output:analog-stereo: 模拟立体声 输出 (priority 6000, available: unknown)
                output:analog-stereo+input:analog-stereo: 模拟立体声双工 (priority 6060, available: unknown)
                output:iec958-stereo: 数字立体声(IEC958) 输出 (priority 5500, available: unknown)
                output:iec958-stereo+input:analog-stereo: 数字立体声(IEC958) 输出 + 模拟立体声 输入 (priority 5560, available: unknown)
                off: 关 (priority 0, available: unknown)
        active profile:
        sinks:
                alsa_output.pci-0000_00_14.2.analog-stereo/#5: 内置音频 模拟立体声
        sources:
                alsa_input.pci-0000_00_14.2.analog-stereo/#2: 内置音频 模拟立体声
                alsa_output.pci-0000_00_14.2.analog-stereo.monitor/#6: Monitor of 内置音频 模拟立体声
        ports:
                analog-input-front-mic: 前麦克风 (priority 8500, latency offset 0 usec, available: no)
                        properties:
                                device.icon_name = "audio-input-microphone"
                analog-input-rear-mic: 后麦克风 (priority 8200, latency offset 0 usec, available: no)
                        properties:
                                device.icon_name = "audio-input-microphone"
                analog-input-linein: 输入插孔 (priority 8100, latency offset 0 usec, available: no)
                        properties:
                               
                analog-output-lineout: 线缆输出 (priority 9900, latency offset 0 usec, available: yes)
                        properties:
                               
                analog-output-headphones: 模拟耳机 (priority 9000, latency offset 0 usec, available: unknown)
                        properties:
                                device.icon_name = "audio-headphones"
                iec958-stereo-output: 数字输出 (S/PDIF) (priority 0, latency offset 0 usec, available: unknown)
                        properties:
                               
linux:~$ pacmd list-sinks
2 sink(s) available.
    index: 0
        name:
        driver:
        flags: HARDWARE DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY
        state: IDLE
        suspend cause:
        priority: 9950
        volume: front-left: 52428 /  80% / -5.81 dB,   front-right: 52428 /  80% / -5.81 dB
                balance 0.00
        base volume: 65536 / 100% / 0.00 dB
        volume steps: 65537
        muted: no
        current latency: 23.11 ms
        max request: 6 KiB
        max rewind: 344 KiB
        monitor source: 0
        sample spec: s16le 2ch 44100Hz
        channel map: front-left,front-right
                     立体声
        used by: 0
        linked by: 1
        configured latency: 40.00 ms; range is 0.50 .. 1999.82 ms
        card: 0
        module: 6
        properties:
                alsa.resolution_bits = "16"
                device.api = "alsa"
                device.class = "sound"
                alsa.class = "generic"
                alsa.subclass = "generic-mix"
                alsa.name = "HDMI 0"
                alsa.id = "HDMI 0"
                alsa.subdevice = "0"
                alsa.subdevice_name = "subdevice #0"
                alsa.device = "3"
                alsa.card = "0"
                alsa.card_name = "HDA ATI HDMI"
                alsa.long_card_name = "HDA ATI HDMI at 0xfeb44000 irq 38"
                alsa.driver_name = "snd_hda_intel"
                device.bus_path = "pci-0000:00:01.1"
                sysfs.path = "/devices/pci0000:00/0000:00:01.1/sound/card0"
                device.bus = "pci"
                device.vendor.id = "1002"
                device.vendor.name = "Advanced Micro Devices, Inc. [AMD/ATI]"
                device.product.id = "9902"
                device.product.name = "Trinity HDMI Audio Controller"
                device.form_factor = "internal"
                device.string = "hdmi:0"
                device.buffering.buffer_size = "352768"
                device.buffering.fragment_size = "176384"
                device.access_mode = "mmap+timer"
                device.profile.name = "hdmi-stereo"
                device.profile.description = "Digital Stereo (HDMI)"
                device.description = "内置音频 Digital Stereo (HDMI)"
                alsa.mixer_name = "ATI R6xx HDMI"
                alsa.components = "HDA:1002aa01,00aa0100,00100300"
                module-udev-detect.discovered = "1"
                device.icon_name = "audio-card-pci"
        ports:
                hdmi-output-0: HDMI / DisplayPort (priority 5900, latency offset 0 usec, available: no)
                        properties:
                                device.icon_name = "video-display"
        active port:
  * index: 5
        name:
        driver:
        flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY
        state: SUSPENDED
        suspend cause: IDLE
        priority: 9959
        volume: front-left: 65536 / 100% / 0.00 dB,   front-right: 49978 /  76% / -7.06 dB
                balance -0.24
        base volume: 65536 / 100% / 0.00 dB
        volume steps: 65537
        muted: no
        current latency: 0.00 ms
        max request: 0 KiB
        max rewind: 0 KiB
        monitor source: 6
        sample spec: s16le 2ch 44100Hz
        channel map: front-left,front-right
                     立体声
        used by: 0
        linked by: 0
        configured latency: 0.00 ms; range is 0.50 .. 1999.82 ms
        card: 1
        module: 7
        properties:
                alsa.resolution_bits = "16"
                device.api = "alsa"
                device.class = "sound"
                alsa.class = "generic"
                alsa.subclass = "generic-mix"
                alsa.name = "ALC887-VD Analog"
                alsa.id = "ALC887-VD Analog"
                alsa.subdevice = "0"
                alsa.subdevice_name = "subdevice #0"
                alsa.device = "0"
                alsa.card = "1"
                alsa.card_name = "HD-Audio Generic"
                alsa.long_card_name = "HD-Audio Generic at 0xfeb40000 irq 16"
                alsa.driver_name = "snd_hda_intel"
                device.bus_path = "pci-0000:00:14.2"
                sysfs.path = "/devices/pci0000:00/0000:00:14.2/sound/card1"
                device.bus = "pci"
                device.vendor.id = "1022"
                device.vendor.name = "Advanced Micro Devices, Inc. [AMD]"
                device.product.id = "780d"
                device.product.name = "FCH Azalia Controller"
                device.form_factor = "internal"
                device.string = "front:1"
                device.buffering.buffer_size = "352768"
                device.buffering.fragment_size = "176384"
                device.access_mode = "mmap+timer"
                device.profile.name = "analog-stereo"
                device.profile.description = "模拟立体声"
                device.description = "内置音频 模拟立体声"
                alsa.mixer_name = "Realtek ALC887-VD"
                alsa.components = "HDA:10ec0887,1458a002,00100302"
                module-udev-detect.discovered = "1"
                device.icon_name = "audio-card-pci"
        ports:
                analog-output-lineout: 线缆输出 (priority 9900, latency offset 0 usec, available: yes)
                        properties:
                               
                analog-output-headphones: 模拟耳机 (priority 9000, latency offset 0 usec, available: unknown)
                        properties:
                                device.icon_name = "audio-headphones"
        active port: