当我插入 HDMI 电视时，我确实有图像，但没有声音。我已经在 ubuntu 14.04 上安装了 pb，在 ubuntu 18.04 上仍然有。
在 ubuntu 14 中，我尝试了论坛上找到的很多解决方案，但都没有用。所以现在我会尝试寻求一些帮助...
以下是一些信息：
lspci | grep "VGA compatible controller"
00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09)
01:00.0 VGA compatible controller: NVIDIA Corporation GK107M [GeForce GT 650M] (rev a1)
，
lshw -enable pci -class display
*-display
description: VGA compatible controller
produit: GK107M [GeForce GT 650M]
fabriquant: NVIDIA Corporation
identifiant matériel: 0
information bus: pci@0000:01:00.0
version: a1
bits: 64 bits
horloge: 33MHz
fonctionnalités: vga_controller bus_master cap_list rom
configuration: driver=nvidia latency=0
ressources: irq:35 mémoire:f6000000-f6ffffff mémoire:e0000000-efffffff mémoire:f0000000-f1ffffff portE/S:e000(taille=128) mémoire:f7000000-f707ffff
*-display
description: VGA compatible controller
produit: 3rd Gen Core processor Graphics Controller
fabriquant: Intel Corporation
identifiant matériel: 2
information bus: pci@0000:00:02.0
version: 09
bits: 64 bits
horloge: 33MHz
fonctionnalités: vga_controller bus_master cap_list rom
configuration: driver=i915 latency=0
ressources: irq:26 mémoire:f7400000-f77fffff mémoire:d0000000-dfffffff portE/S:f000(taille=64) mémoire:c0000-dffff
，
xrandr
Screen 0: minimum 8 x 8, current 3200 x 1080, maximum 16384 x 16384
HDMI-0 connected 1280x768+1920+0 (normal left inverted right x axis y axis) 708mm x 398mm
1280x768 59.99*+
1920x1080 59.94 50.00 29.97 25.00 23.98 60.05 60.00 50.04
1360x768 60.02
1280x1024 60.02
1280x720 60.00 59.94 50.00 50.00
1024x768 85.00 75.03 70.07 60.00
800x600 85.06 75.00 72.19 60.32
720x576 50.00
720x480 59.94
640x480 85.01 75.00 72.81 59.94 59.93
LVDS-1-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 382mm x 215mm
1920x1080 60.01*+ 60.01 59.97 59.96 59.93 40.01
1680x1050 59.95 59.88
1600x1024 60.17
1400x1050 59.98
1600x900 59.99 59.94 59.95 59.82
1280x1024 60.02
1440x900 59.89
1400x900 59.96 59.88
1280x960 60.00
1440x810 60.00 59.97
1368x768 59.88 59.85
1360x768 59.80 59.96
1280x800 59.99 59.97 59.81 59.91
1152x864 60.00
1280x720 60.00 59.99 59.86 59.74
1024x768 60.04 60.00
960x720 60.00
928x696 60.05
896x672 60.01
1024x576 59.95 59.96 59.90 59.82
960x600 59.93 60.00
960x540 59.96 59.99 59.63 59.82
800x600 60.00 60.32 56.25
840x525 60.01 59.88
864x486 59.92 59.57
800x512 60.17
700x525 59.98
800x450 59.95 59.82
640x512 60.02
720x450 59.89
700x450 59.96 59.88
640x480 60.00 59.94
720x405 59.51 58.99
684x384 59.88 59.85
680x384 59.80 59.96
640x400 59.88 59.98
576x432 60.06
640x360 59.86 59.83 59.84 59.32
512x384 60.00
512x288 60.00 59.92
480x270 59.63 59.82
400x300 60.32 56.34
432x243 59.92 59.57
320x240 60.05
360x202 59.51 59.13
320x180 59.84 59.32
VGA-1-1 disconnected (normal left inverted right x axis y axis)
1280x1024 (0x53) 108.000MHz +HSync +VSync
h: width 1280 start 1328 end 1440 total 1688 skew 0 clock 63.98KHz
v: height 1024 start 1025 end 1028 total 1066 clock 60.02Hz
1024x768 (0x68) 65.000MHz -HSync -VSync
h: width 1024 start 1048 end 1184 total 1344 skew 0 clock 48.36KHz
v: height 768 start 771 end 777 total 806 clock 60.00Hz
800x600 (0x77) 40.000MHz +HSync +VSync
h: width 800 start 840 end 968 total 1056 skew 0 clock 37.88KHz
v: height 600 start 601 end 605 total 628 clock 60.32Hz
640x480 (0x86) 25.175MHz -HSync -VSync
h: width 640 start 656 end 752 total 800 skew 0 clock 31.47KHz
v: height 480 start 490 end 492 total 525 clock 59.94Hz
，
lspci | grep -i audio
00:1b.0 Audio device: Intel Corporation 7 Series/C216 Chipset Family High Definition Audio Controller (rev 04)
当我进入声音参数（插入 HDMI 电视）时，没有任何 HDMI 输出。
有人有办法解决这个问题吗？
谢谢！
答案1
尝试这些
- 检查声音设置
然后
sudo apt install pavucontrol
打开
pavucontrol
检查设置