我最近从 Ubuntu 18.04 升级到 20.04，所有蓝牙设备和主板集成音频都停止工作。
另外，我的集成主板声卡 Intel PCH 从 Gnome 声音列表中消失了，现在我只看到 HDMI（我的显示器），但在 alsamixer 中我还能看到我的 Intel PCH。
首先我想解决这个蓝牙问题。英特尔 PCH 无关紧要，我很少使用非蓝牙耳机。
当我重新启动系统时，从 vm/de 注销，Gnome 将处于飞行模式，如果我运行以下命令则不起作用：
sudo systemctl enable blutooth
我也尝试过使用 lxde，但存在同样的蓝牙问题和集成音频问题。
USB 音频似乎运行良好。
rfkill list all
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
[ 112.322231]
hcitool scan
Device is not available: No such device
dmesg
[ 112.322231] rfkill: input handler disabled
lsusb
Bus 002 Device 004: ID 0cf3:3005 Qualcomm Atheros Communications AR3011 Bluetooth
Bus 002 Device 003: ID 046d:c01e Logitech, Inc. MX518 Optical Mouse
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 006 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 005: ID 05e3:0723 Genesys Logic, Inc. GL827L SD/MMC/MS Flash Card Reader
Bus 001 Device 004: ID 046d:c52b Logitech, Inc. Unifying Receiver
Bus 001 Device 006: ID 1415:2000 Nam Tai E&E Products Ltd. or OmniVision Technologies, Inc. Sony Playstation Eye
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
sudo blueman-manager
blueman-manager version 2.1.2 starting
blueman-manager 13.28.19 ERROR Manager:118 on_dbus_name_appeared: Default adapter not found, trying first available.
hciconfig
hci0: Type: Primary Bus: USB
BD Address: 00:00:00:00:00:00 ACL MTU: 0:0 SCO MTU: 0:0
DOWN
RX bytes:0 acl:0 sco:0 events:0 errors:0
TX bytes:3 acl:0 sco:0 commands:1 errors:0
hcitool -i hci0 lescan
Invalid device: Network is down
systemctl | grep -i blu
sys-devices-pci0000:00-0000:00:1d.0-usb2-2\x2d1-2\x2d1.7-2\x2d1.7:1.0-bluetooth-hci0.device loaded active plugged /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.7/2-1.7:1.0/bluetooth/hci0
sys-subsystem-bluetooth-devices-hci0.device loaded active plugged /sys/subsystem/bluetooth/devices/hci0
bluetooth.service loaded active running Bluetooth service
bluetooth.target loaded active active Bluetooth
dmesg | grep -i blue
[ 9.140290] Bluetooth: Core ver 2.22
[ 9.140303] Bluetooth: HCI device and connection manager initialized
[ 9.140306] Bluetooth: HCI socket layer initialized
[ 9.140307] Bluetooth: L2CAP socket layer initialized
[ 9.140310] Bluetooth: SCO socket layer initialized
[ 11.230357] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 11.230358] Bluetooth: BNEP filters: protocol multicast
[ 11.230362] Bluetooth: BNEP socket layer initialized
lspci
00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09)
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port (rev 09)
00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04)
00:19.0 Ethernet controller: Intel Corporation 82579V Gigabit Network Connection (rev 05)
00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 05)
00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 05)
00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b5)
00:1c.1 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2 (rev b5)
00:1c.3 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 4 (rev b5)
00:1c.4 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 5 (rev b5)
00:1c.6 PCI bridge: Intel Corporation 82801 PCI Bridge (rev b5)
00:1c.7 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 8 (rev b5)
00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 05)
00:1f.0 ISA bridge: Intel Corporation Z68 Express Chipset LPC Controller (rev 05)
00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family 6 port Desktop SATA AHCI Controller (rev 05)
00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 05)
01:00.0 VGA compatible controller: NVIDIA Corporation GP106 [GeForce GTX 1060 3GB] (rev a1)
01:00.1 Audio device: NVIDIA Corporation GP106 High Definition Audio Controller (rev a1)
03:00.0 USB controller: ASMedia Technology Inc. ASM1042 SuperSpeed USB Host Controller
04:00.0 SATA controller: JMicron Technology Corp. JMB362 SATA Controller (rev 10)
05:00.0 USB controller: ASMedia Technology Inc. ASM1042 SuperSpeed USB Host Controller
06:00.0 PCI bridge: ASMedia Technology Inc. ASM1083/1085 PCIe to PCI Bridge (rev 01)
08:00.0 SATA controller: Marvell Technology Group Ltd. 88SE9172 SATA 6Gb/s Controller (rev 11
uname -a
Linux hostname 5.4.0-51-lowlatency #56-Ubuntu SMP PREEMPT Mon Oct 5 15:52:03 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
我升级了内核，因此（但没有效果）：
uname -a
Linux hostname 5.9.0-050900-lowlatency #202010112230 SMP PREEMPT Sun Oct 11 22:37:09 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
cat /etc/issue
Ubuntu 20.04.1 LTS \n \l
我尝试过这些解决方案，但它们似乎对我不起作用：
截图：
答案1
我遇到了蓝牙硬件问题。这种情况有时会发生。在我的情况下，蓝牙坏了，当我升级到较新的操作系统时，可能是遇到了一些电矛或类似的东西。
我购买了新的加密狗，当加密狗连接到 USB 端口时，Gnomeshowed 立即显示蓝牙已打开。
bluetoothctl
Agent registered
[bluetooth]# power on
Changing power on succeeded
[bluetooth]# exit
user@hostname:~$ hciconfig
hci1: Type: Primary Bus: USB
BD Address: 00:1A:7D:DA:71:13 ACL MTU: 310:10 SCO MTU: 64:8
UP RUNNING
RX bytes:730 acl:0 sco:0 events:56 errors:0
TX bytes:4877 acl:0 sco:0 commands:56 errors:0
hci0: Type: Primary Bus: USB
BD Address: 00:00:00:00:00:00 ACL MTU: 0:0 SCO MTU: 0:0
DOWN
RX bytes:0 acl:0 sco:0 events:0 errors:0
TX bytes:3 acl:0 sco:0 commands:1 errors:0
user@hostname:~$ hcitool -i hci1 scan
Scanning ...
现在唯一的问题是英特尔 PCH
答案2
我有耳机也可以用
我编辑了这个文件/etc/pulse/default.pa
并更改了
### Load audio drivers statically
### (it's probably better to not load these drivers manually, but instead
### use module-udev-detect -- see below -- for doing this automatically)
#load-module module-alsa-sink
对此（评论 alsa-sink
### Load audio drivers statically
### (it's probably better to not load these drivers manually, but instead
### use module-udev-detect -- see below -- for doing this automatically)
load-module module-alsa-sink
并重新启动系统，一切恢复正常。