正如标题所说，只要我直接插入屏幕，我的 Xubuntu 17.10 就会通过 HDMI 输出视频和音频，但是当我用接收器尝试时，它永远不会意识到已经插入了电缆。
Windows 7 HDMI ->接收器 ->电视设置可通过另一台笔记本电脑运行。
Xubuntu HDMI ->接收器->电视的设置没有意识到插入了任何东西。
在 pulseaudio 中更改声音配置文件没有任何作用（全部拔掉）。
发生了什么事？我不确定该给出什么输出才能有所帮助 :)
编辑：
硬件和软件信息：
我的接收器是 Harman Kardon AVR160（连接 Windows 笔记本电脑时显示为 AVR160/1600）。我在他们的网站上找到了固件更新，但他们的最新版本已经安装在我的接收器上了。
我的笔记本电脑是新款 Acer Aspire ES11：ES1-132-C2JZ。据我所知，显卡应该是 Intel 520。显卡驱动程序是英特尔的 i915 (hda) 驱动程序，但我尝试使用 Xubuntu 的默认驱动程序，它没有任何变化。aplay -l 将声卡列为“PCH[HDA Intel PCH，设备 0：ALC255 Analog”，然后打印一堆“PCH[HDA Intel PCH，设备 x：HDMI y [HDMI y]”。我猜这是 HDMI 声音配置文件，而不是实际的卡(?)。
不确定是否相关，但接收器另一侧的电视是一台旧的（2009 年）高清电视：LG 42PQ2000。我尝试过不连接电视，无论如何，此设置都可以在我的 Windows 笔记本电脑上运行。
lshw 输出（由于格式原因，删除了有关 USB、网络以及处理器和 RAM 的一些详细信息）：
description: Notebook
product: Aspire ES1-132 (Aspire ES1-132_110C_1.15)
vendor: Acer
version: V1.15
serial: removed :D
width: 64 bits
capabilities: smbios-3.0 dmi-3.0 smp vsyscall32
configuration: chassis=notebook family=APL sku=Aspire ES1-132_110C_1.15 uuid=79DE4B1A-04BD-47B1-8EC0-A81E84BCF3AE
*-core
description: Motherboard
product: Ornith_AP_S
vendor: APL
physical id: 0
version: V1.15
serial: NBGHN110027351E5597600
slot: Type2 - Board Chassis Location
*-firmware
description: BIOS
vendor: Insyde Corp.
physical id: 0
version: V1.15
date: 07/11/2017
size: 128KiB
capacity: 4544KiB
capabilities: pci upgrade shadowing cdboot bootselect edd int13floppynec int13floppytoshiba int13floppy360 int13floppy1200 int13floppy720 int13floppy2880 int9keyboard int10video acpi usb biosbootspecification uefi
*-cpu
description: CPU
product: Intel(R) Celeron(R) CPU N3350 @ 1.10GHz
vendor: Intel Corp.
physical id: 4
bus info: cpu@0
version: Intel(R) Celeron(R) CPU N3350 @ 1.10GHz
serial: To Be Filled By O.E.M.
slot: U3E1
size: 929MHz
capacity: 2400MHz
width: 64 bits
clock: 100MHz
*-pci
description: Host bridge
product: Celeron N3350/Pentium N4200/Atom E3900 Series Host Bridge
vendor: Intel Corporation
physical id: 100
bus info: pci@0000:00:00.0
version: 0b
width: 32 bits
clock: 33MHz
*-generic:0
description: Signal processing controller
product: Intel Corporation
vendor: Intel Corporation
physical id: 0.1
bus info: pci@0000:00:00.1
version: 0b
width: 64 bits
clock: 33MHz
capabilities: pm bus_master cap_list
configuration: driver=proc_thermal latency=0
resources: irq:24 memory:91310000-91317fff
*-display
description: VGA compatible controller
product: Intel Corporation
vendor: Intel Corporation
physical id: 2
bus info: pci@0000:00:02.0
version: 0b
width: 64 bits
clock: 33MHz
capabilities: pciexpress msi pm vga_controller bus_master cap_list rom
configuration: driver=i915 latency=0
resources: irq:371 memory:90000000-90ffffff memory:80000000-8fffffff ioport:2000(size=64) memory:c0000-dffff
*-multimedia
description: Audio device
product: Celeron N3350/Pentium N4200/Atom E3900 Series Audio Cluster
vendor: Intel Corporation
physical id: e
bus info: pci@0000:00:0e.0
version: 0b
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list
configuration: driver=snd_hda_intel latency=0
resources: irq:374 memory:91318000-9131bfff memory:91000000-910fffff
*-communication
description: Communication controller
product: Celeron N3350/Pentium N4200/Atom E3900 Series Trusted Execution Engine
vendor: Intel Corporation
physical id: f
bus info: pci@0000:00:0f.0
version: 0b
width: 64 bits
clock: 33MHz
capabilities: pm msi bus_master cap_list
configuration: driver=mei_me latency=0
resources: irq:372 memory:9131e000-9131efff
*-storage
description: SATA controller
product: Celeron N3350/Pentium N4200/Atom E3900 Series SATA AHCI Controller
vendor: Intel Corporation
physical id: 12
bus info: pci@0000:00:12.0
version: 0b
width: 32 bits
clock: 66MHz
capabilities: storage msi pm ahci_1.0 bus_master cap_list
configuration: driver=ahci latency=0
resources: irq:369 memory:9131c000-9131dfff memory:91327000-913270ff ioport:2080(size=8) ioport:2088(size=4) ioport:2060(size=32) memory:91325000-913257ff
*-pci:0
description: PCI bridge
product: Celeron N3350/Pentium N4200/Atom E3900 Series PCI Express Port A #1
vendor: Intel Corporation
physical id: 13
bus info: pci@0000:00:13.0
version: fb
width: 32 bits
clock: 33MHz
capabilities: pci pciexpress msi pm normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:120
*-pci:1
description: PCI bridge
product: Celeron N3350/Pentium N4200/Atom E3900 Series PCI Express Port A #3
vendor: Intel Corporation
physical id: 13.2
bus info: pci@0000:00:13.2
version: fb
width: 32 bits
clock: 33MHz
capabilities: pci pciexpress msi pm normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:121 ioport:1000(size=4096) memory:91200000-912fffff
*-pci:2
description: PCI bridge
product: Celeron N3350/Pentium N4200/Atom E3900 Series PCI Express Port A #4
vendor: Intel Corporation
physical id: 13.3
bus info: pci@0000:00:13.3
version: fb
width: 32 bits
clock: 33MHz
capabilities: pci pciexpress msi pm normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:122 memory:91100000-911fffff
*-generic:1
description: Signal processing controller
product: Celeron N3350/Pentium N4200/Atom E3900 Series I2C Controller #5
vendor: Intel Corporation
physical id: 17
bus info: pci@0000:00:17.0
version: 0b
width: 64 bits
clock: 33MHz
capabilities: pm bus_master cap_list
configuration: driver=intel-lpss latency=0
resources: irq:31 memory:91321000-91321fff memory:91322000-91322fff
*-generic:2
description: SD Host controller
product: Celeron N3350/Pentium N4200/Atom E3900 Series eMMC Controller
vendor: Intel Corporation
physical id: 1c
bus info: pci@0000:00:1c.0
version: 0b
width: 64 bits
clock: 33MHz
capabilities: pm bus_master cap_list
configuration: driver=sdhci-pci latency=0
resources: irq:39 memory:91323000-91323fff memory:91324000-91324fff
*-isa
description: ISA bridge
product: Celeron N3350/Pentium N4200/Atom E3900 Series Low Pin Count Interface
vendor: Intel Corporation
physical id: 1f
bus info: pci@0000:00:1f.0
version: 0b
width: 32 bits
clock: 33MHz
capabilities: isa bus_master
configuration: driver=lpc_ich latency=0
resources: irq:0
*-serial UNCLAIMED
description: SMBus
product: Celeron N3350/Pentium N4200/Atom E3900 Series SMBus Controller
vendor: Intel Corporation
physical id: 1f.1
bus info: pci@0000:00:1f.1
version: 0b
width: 64 bits
clock: 33MHz
configuration: latency=0
resources: memory:91326000-913260ff ioport:2040(size=32)
答案1
为了好玩，我调换了两根 HDMI 电缆。立即见效。两种设置现在都可以正常工作。但我不明白为什么……