在 NVIDIA GeForce GTX 1050 Ti，HDMI没有音频

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ubuntu

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问题

我在HP Omen 15的Ubuntu 17.10上运行内核v4.13.0 -36-generic。

已禁用安全启动。

$ aplay -l **** List of PLAYBACK Hardware Devices **** card 0: PCH [HDA Intel PCH], device 0: ALC295 Analog [ALC295 Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: PCH [HDA Intel PCH], device 7: HDMI 1 [HDMI 1] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: PCH [HDA Intel PCH], device 8: HDMI 2 [HDMI 2] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: PCH [HDA Intel PCH], device 9: HDMI 3 [HDMI 3] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: PCH [HDA Intel PCH], device 10: HDMI 4 [HDMI 4] Subdevices: 1/1 Subdevice #0: subdevice #0

$ lspci 00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v6/7th Gen Core Processor Host Bridge/DRAM Registers (rev 05) 00:01.0 PCI bridge: Intel Corporation Skylake PCIe Controller (x16) (rev 05) 00:02.0 VGA compatible controller: Intel Corporation Device 591b (rev 04) 00:04.0 Signal processing controller: Intel Corporation Skylake Processor Thermal Subsystem (rev 05) 00:14.0 USB controller: Intel Corporation Sunrise Point-H USB 3.0 xHCI Controller (rev 31) 00:14.2 Signal processing controller: Intel Corporation Sunrise Point-H Thermal subsystem (rev 31) 00:16.0 Communication controller: Intel Corporation Sunrise Point-H CSME HECI #1 (rev 31) 00:17.0 SATA controller: Intel Corporation Sunrise Point-H SATA Controller [AHCI mode] (rev 31) 00:1c.0 PCI bridge: Intel Corporation Sunrise Point-H PCI Express Root Port #1 (rev f1) 00:1c.4 PCI bridge: Intel Corporation Sunrise Point-H PCI Express Root Port #5 (rev f1) 00:1c.5 PCI bridge: Intel Corporation Sunrise Point-H PCI Express Root Port #6 (rev f1) 00:1c.6 PCI bridge: Intel Corporation Sunrise Point-H PCI Express Root Port #7 (rev f1) 00:1f.0 ISA bridge: Intel Corporation Sunrise Point-H LPC Controller (rev 31) 00:1f.2 Memory controller: Intel Corporation Sunrise Point-H PMC (rev 31) 00:1f.3 Audio device: Intel Corporation Device a171 (rev 31) 00:1f.4 SMBus: Intel Corporation Sunrise Point-H SMBus (rev 31) 01:00.0 3D controller: NVIDIA Corporation GP107M [GeForce GTX 1050 Mobile] (rev a1) 03:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS522A PCI Express Card Reader (rev 01) 04:00.0 Network controller: Intel Corporation Wireless 7265 (rev 61) 05:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 15)

答案1

  • 创建文件 /etc/systemd/system/fix-hdmi-audio.service

    
[Unit]


Description=nVidia HDMI Audio Fixer


Before=systemd-logind.service display-manager.service


After=module-init-tools.service



[Service]


Type=oneshot


ExecStart=/usr/local/bin/fix-hdmi-audio.sh



[Install]


WantedBy=multi-user.target

  • 创建文件/usr/local/bin/fix-hdmi-audio.sh

    
#!/bin/sh


setpci -s 01:00.0 0x488.l=0x2000000:0x2000000


rmmod nvidia-uvm nvidia-drm nvidia-modeset nvidia


sh -c 'echo 1 > /sys/bus/pci/devices/0000:01:00.0/remove'


sh -c 'echo 1 > /sys/bus/pci/devices/0000:00:01.0/rescan'


modprobe nvidia nvidia-modeset nvidia-drm nvidia-uvm

    并将它设置为runnable： chmod +x /usr/local/bin/fix-hdmi-audio.sh

  • 启用服务： systemctl enable fix-hdmi-audio.service

  • 安装apt install pavucontrol，然后启动"PulseAudio Volume Control"，，在"配置"选项卡中，只能看到"内部音频"

  • 重新启动，插入HDMI，并播放一些音乐，启动"PulseAudio Volume Control"，在"配置"选项卡中，你应该看到"内部音频"和"HDA NVidia" ，在"播放"标签中，音乐播放器的右侧有一个按钮。选择"HDA NVidia"

  • 重启后，你可以看到 

    
01:00.1 Audio device: NVIDIA Corporation Device 10f1 (rev a1)

    在lscpi的输出中。

    • 答案2

    最可能 setpci -s 01:00.0 0x488.l=0x2000000:0x2000000 硬件设置不能工作。


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