我安装了 Debian 11，但蓝牙无法使用。
当我运行命令时sudo systemctl status bluetooth，蓝牙显示为活动状态。但当我进入配置时，它显示了以下内容：
葡萄牙语消息是：“未找到蓝牙”[![在此处输入图像描述][1]][1]
我的硬件：
ramon@dell:~$ lspci
00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v6/7th Gen Core Processor Host Bridge/DRAM Registers (rev 02)
00:02.0 VGA compatible controller: Intel Corporation HD Graphics 620 (rev 02)
00:04.0 Signal processing controller: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor Thermal Subsystem (rev 02)
00:14.0 USB controller: Intel Corporation Sunrise Point-LP USB 3.0 xHCI Controller (rev 21)
00:14.2 Signal processing controller: Intel Corporation Sunrise Point-LP Thermal subsystem (rev 21)
00:15.0 Signal processing controller: Intel Corporation Sunrise Point-LP Serial IO I2C Controller #0 (rev 21)
00:15.1 Signal processing controller: Intel Corporation Sunrise Point-LP Serial IO I2C Controller #1 (rev 21)
00:16.0 Communication controller: Intel Corporation Sunrise Point-LP CSME HECI #1 (rev 21)
00:17.0 SATA controller: Intel Corporation Sunrise Point-LP SATA Controller [AHCI mode] (rev 21)
00:1c.0 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #5 (rev f1)
00:1c.5 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #6 (rev f1)
00:1f.0 ISA bridge: Intel Corporation Sunrise Point-LP LPC Controller (rev 21)
00:1f.2 Memory controller: Intel Corporation Sunrise Point-LP PMC (rev 21)
00:1f.3 Audio device: Intel Corporation Sunrise Point-LP HD Audio (rev 21)
00:1f.4 SMBus: Intel Corporation Sunrise Point-LP SMBus (rev 21)
01:00.0 Network controller: Qualcomm Atheros QCA9565 / AR9565 Wireless Network Adapter (rev 01)
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL810xE PCI Express Fast Ethernet controller (rev 07)
命令：lsusb；须藤 dmesg | egrep -i '蓝色|坚定'
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 006: ID 0cf3:e005 Qualcomm Atheros Communications
Bus 001 Device 005: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller
Bus 001 Device 004: ID 1bcf:28c0 Sunplus Innovation Technology Inc. Integrated_Webcam_HD
Bus 001 Device 003: ID 1532:006e Razer USA, Ltd DeathAdder Essential
Bus 001 Device 002: ID 0951:16dd Kingston Technology HyperX Alloy Core RGB
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
[sudo] senha para ramon:
[ 0.281035] ACPI: [Firmware Bug]: BIOS _OSI(Linux) query ignored
[ 2.086373] i915 0000:00:02.0: firmware: failed to load i915/kbl_dmc_ver1_04.bin (-2)
[ 2.086376] firmware_class: See https://wiki.debian.org/Firmware for information about missing firmware
[ 2.086379] i915 0000:00:02.0: Direct firmware load for i915/kbl_dmc_ver1_04.bin failed with error -2
[ 2.086381] i915 0000:00:02.0: [drm] Failed to load DMC firmware i915/kbl_dmc_ver1_04.bin. Disabling runtime power management.
[ 2.086382] i915 0000:00:02.0: [drm] DMC firmware homepage: https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/tree/i915
[ 4.516681] platform regulatory.0: firmware: direct-loading firmware regulatory.db
[ 4.516799] platform regulatory.0: firmware: direct-loading firmware regulatory.db.p7s
[ 4.957804] Bluetooth: Core ver 2.22
[ 4.957836] Bluetooth: HCI device and connection manager initialized
[ 4.957840] Bluetooth: HCI socket layer initialized
[ 4.957842] Bluetooth: L2CAP socket layer initialized
[ 4.957847] Bluetooth: SCO socket layer initialized
[ 5.006973] usb 1-8: firmware: failed to load ar3k/AthrBT_0x31010100.dfu (-2)
[ 5.007015] usb 1-8: Direct firmware load for ar3k/AthrBT_0x31010100.dfu failed with error -2
[ 5.007025] Bluetooth: Loading patch file failed
[ 5.543212] r8169 0000:02:00.0: firmware: failed to load rtl_nic/rtl8106e-1.fw (-2)
[ 5.543919] r8169 0000:02:00.0: Direct firmware load for rtl_nic/rtl8106e-1.fw failed with error -2
[ 5.543953] r8169 0000:02:00.0: Unable to load firmware rtl_nic/rtl8106e-1.fw (-2)
[ 6.378699] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 6.378706] Bluetooth: BNEP filters: protocol multicast
[ 6.378710] Bluetooth: BNEP socket layer initialized
答案1
啊，这是有道理的：
01:00.0 网络控制器：Qualcomm Atheros QCA9565 / AR9565 无线网络适配器（版本 01）
和
5.006973] usb 1-8: firmware: failed to load ar3k/AthrBT_0x31010100.dfu (-2) 5.007015] usb 1-8: Direct firmware load for ar3k/AthrBT_0x31010100.dfu failed with error -2
您已经安装了 WiFi 固件，但缺少 AR9565 的完整蓝牙固件。
您需要sudo apt install firmware-atheros重新启动。