kubuntu版本截图：
在我的笔记本电脑上，没有检测到蓝牙设备。我想也许我的笔记本电脑的内部蓝牙设备坏了，所以我买了一个即插即用的 USB 蓝牙适配器，但它也不起作用。
在我的 Linux 上，安装了 blueman-applet 2.1.2。
也许这个输出可以帮助你帮助我：
lsusb lsmod sudo rfkill 列表
ahmet@ahmet:~$ lsusb
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 001 Device 004: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller
Bus 001 Device 005: ID 8087:07da Intel Corp.
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
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 002: ID 0bda:5728 Realtek Semiconductor Corp. Lenovo EasyCamera
Bus 003 Device 010: ID 04b3:310d IBM Corp.
Bus 003 Device 008: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode)
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
ahmet@ahmet:~$ lsmod
Module Size Used by
hid_generic 16384 0
usbhid 53248 0
hid 110592 2 usbhid,hid_generic
ccm 20480 3
devlink 45056 0
xt_CHECKSUM 16384 1
ipt_MASQUERADE 16384 3
nf_nat_masquerade_ipv4 16384 1 ipt_MASQUERADE
xt_conntrack 16384 1
ipt_REJECT 16384 2
nf_reject_ipv4 16384 1 ipt_REJECT
xt_tcpudp 16384 9
ip6table_mangle 16384 1
ip6table_nat 16384 1
nf_conntrack_ipv6 20480 1
nf_defrag_ipv6 20480 1 nf_conntrack_ipv6
nf_nat_ipv6 16384 1 ip6table_nat
iptable_mangle 16384 1
iptable_nat 16384 1
nf_conntrack_ipv4 16384 5
nf_defrag_ipv4 16384 1 nf_conntrack_ipv4
nf_nat_ipv4 16384 1 iptable_nat
nf_nat 32768 3 nf_nat_masquerade_ipv4,nf_nat_ipv6,nf_nat_ipv4
nf_conntrack 131072 8 xt_conntrack,nf_nat_masquerade_ipv4,nf_conntrack_ipv6,nf_conntrack_ipv4,nf_nat,nf_nat_ipv6,ipt_MASQUERADE,nf_nat_ipv4
libcrc32c 16384 2 nf_conntrack,nf_nat
nf_tables_bridge 16384 4
nf_tables 90112 1 nf_tables_bridge
nfnetlink 16384 1 nf_tables
ip6table_filter 16384 1
ip6_tables 28672 3 ip6table_filter,ip6table_nat,ip6table_mangle
iptable_filter 16384 1
bridge 155648 0
stp 16384 1 bridge
llc 16384 2 bridge,stp
xfrm_user 32768 2
xfrm_algo 16384 1 xfrm_user
binfmt_misc 20480 1
nls_iso8859_1 16384 1
snd_hda_codec_hdmi 49152 1
snd_hda_codec_conexant 24576 1
snd_hda_codec_generic 73728 1 snd_hda_codec_conexant
snd_hda_intel 45056 3
snd_hda_codec 126976 4 snd_hda_codec_generic,snd_hda_codec_conexant,snd_hda_codec_hdmi,snd_hda_intel
snd_hda_core 81920 5 snd_hda_codec_generic,snd_hda_codec_conexant,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec
intel_rapl 20480 0
rtsx_usb_ms 20480 0
uvcvideo 86016 0
memstick 16384 1 rtsx_usb_ms
x86_pkg_temp_thermal 16384 0
snd_hwdep 20480 1 snd_hda_codec
videobuf2_vmalloc 16384 1 uvcvideo
videobuf2_memops 16384 1 videobuf2_vmalloc
intel_powerclamp 16384 0
snd_pcm 98304 4 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hda_core
videobuf2_v4l2 24576 1 uvcvideo
coretemp 16384 0
videobuf2_core 40960 2 videobuf2_v4l2,uvcvideo
snd_seq_midi 16384 0
snd_seq_midi_event 16384 1 snd_seq_midi
kvm_intel 217088 0
btusb 45056 0
videodev 184320 3 videobuf2_core,videobuf2_v4l2,uvcvideo
btrtl 16384 1 btusb
btbcm 16384 1 btusb
btintel 16384 1 btusb
snd_rawmidi 32768 1 snd_seq_midi
media 40960 2 videodev,uvcvideo
bluetooth 544768 6 btrtl,btintel,btbcm,btusb
kvm 610304 1 kvm_intel
ecdh_generic 24576 1 bluetooth
irqbypass 16384 1 kvm
intel_cstate 20480 0
arc4 16384 2
intel_rapl_perf 16384 0
snd_seq 65536 2 snd_seq_midi,snd_seq_midi_event
input_leds 16384 0
joydev 24576 0
serio_raw 16384 0
iwldvm 229376 0
mac80211 786432 1 iwldvm
snd_seq_device 16384 3 snd_seq,snd_seq_midi,snd_rawmidi
snd_timer 32768 2 snd_seq,snd_pcm
iwlwifi 290816 1 iwldvm
cfg80211 622592 3 iwldvm,iwlwifi,mac80211
ideapad_laptop 20480 0
snd 81920 17 snd_hda_codec_generic,snd_seq,snd_hda_codec_conexant,snd_seq_device,snd_hda_codec_hdmi,snd_hwdep,snd_hda_intel,snd_hda_codec,snd_timer,snd_pcm,snd_rawmidi
sparse_keymap 16384 1 ideapad_laptop
wmi 24576 1 ideapad_laptop
mei_me 40960 0
soundcore 16384 1 snd
mac_hid 16384 0
mei 94208 1 mei_me
shpchp 36864 0
sch_fq_codel 20480 10
parport_pc 32768 0
ppdev 20480 0
lp 20480 0
parport 49152 3 parport_pc,lp,ppdev
ip_tables 28672 3 iptable_filter,iptable_nat,iptable_mangle
x_tables 40960 11 ip6table_filter,xt_conntrack,iptable_filter,xt_tcpudp,ipt_MASQUERADE,xt_CHECKSUM,ip6_tables,ipt_REJECT,ip_tables,ip6table_mangle,iptable_mangle
autofs4 40960 2
rtsx_usb_sdmmc 28672 0
rtsx_usb 20480 2 rtsx_usb_sdmmc,rtsx_usb_ms
amdgpu 2715648 0
chash 16384 1 amdgpu
i915 1622016 31
radeon 1462272 2
crct10dif_pclmul 16384 0
crc32_pclmul 16384 0
ghash_clmulni_intel 16384 0
pcbc 16384 0
ttm 106496 2 amdgpu,radeon
i2c_algo_bit 16384 3 amdgpu,radeon,i915
aesni_intel 188416 2
aes_x86_64 20480 1 aesni_intel
crypto_simd 16384 1 aesni_intel
alx 49152 0
glue_helper 16384 1 aesni_intel
cryptd 24576 3 crypto_simd,ghash_clmulni_intel,aesni_intel
drm_kms_helper 172032 3 amdgpu,radeon,i915
syscopyarea 16384 1 drm_kms_helper
sysfillrect 16384 1 drm_kms_helper
sysimgblt 16384 1 drm_kms_helper
ahci 40960 2
fb_sys_fops 16384 1 drm_kms_helper
psmouse 151552 0
libahci 32768 1 ahci
i2c_i801 28672 0
lpc_ich 24576 0
drm 401408 15 drm_kms_helper,amdgpu,radeon,i915,ttm
mdio 16384 1 alx
video 45056 2 ideapad_laptop,i915
ahmet@ahmet:~$ sudo rfkill list
[sudo] ahmet için parola:
0: ideapad_wlan: Wireless LAN
Soft blocked: no
Hard blocked: no
1: ideapad_bluetooth: Bluetooth
Soft blocked: no
Hard blocked: no
2: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
7: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
8: hci1: Bluetooth
Soft blocked: no
Hard blocked: no
ahmet@ahmet:~$