Recently my bluetooth cannot find any near-by device.
I am using GNOME and wayland and have did not make any changes to the system settings, so I am not sure what is going on.
I have also and external linux installation (on a separate HD) and can confirm that in there bluetooth is working just fine.
Following is the output from inxi, if it can be of any help:
System:
Host: hx90gnome Kernel: 6.2.2-arch1-1 arch: x86_64 bits: 64 compiler: gcc
v: 12.2.1 Desktop: GNOME v: 43.3 tk: GTK v: 3.24.37 wm: gnome-shell dm:
1: GDM v: 43.0 2: LightDM v: 1.32.0 note: stopped Distro: EndeavourOS
base: Arch Linux
Bluetooth:
Device-1: MediaTek Wireless_Device type: USB driver: btusb v: 0.8
bus-ID: 2-4:3 chip-ID: 0e8d:0608 class-ID: e001 serial: 000000000
Report: rfkill ID: hci0 rfk-id: 0 state: up address: see --recommends
It would great if somebody could help,
thanks a lot in advance
It seems back to work after doing what described in ArchWiki, in the post below
https://wiki.archlinux.org/title/Bluetooth#bluetoothctl:_No_default_controller_available
What is worse for me is that sometimes also the WiFi module disappear.
So far I regret buying the EliteMini HX90 from Mininforum.
Not sure if I was unlucky, but It it does not work so well with Linux.
In my case wifi module sometime disappears if I close and open lid
I use : ‘nmcli r wifi on’ as a workaround. 
hey @salvocos thanks for report if possible we need some more info:
status of BT service:
systemctl status bluetooth
packages installed:
pacman -Qs blue
And general hardware info:
inxi -Fxxc0z
And infom non exactly when it causes BT to dissapear… like is it after powercycle hibernate suspend e.t.c … dioes it happen when wifi is used or also when you do not use wifi…
And i do not think this is a BUG on EndeavourOS ionstaller or anything we do setup per default (we do not change set up of BT)
What i can read so far sounds mor elike something related to powersaving on the BT device.
device is listed here:
Could be this issue:
but would need to see the full inxi output
Thank you @joekamprad for detailed reply.
I first wanted to clarify that the problem only happens when the machine starts. For example, if it starts and the BT is working normally than it will do so until I turn off the machine.
When I reboot, in the case it does not work, even restarting the BT service would not help.
Following is the output you requested.
I did also run hw-probe if it can help.
Here is the link:
NOTE: I ran the commands while BT was working, will update the post if the output is different when BT is not working.
➜ systemctl status bluetooth
● bluetooth.service - Bluetooth service
Loaded: loaded (/usr/lib/systemd/system/bluetooth.service; enabled; preset: disabled)
Active: active (running) since Sat 2023-03-11 19:54:34 JST; 19min ago
Docs: man:bluetoothd(8)
Main PID: 455 (bluetoothd)
Status: "Running"
Tasks: 1 (limit: 28728)
Memory: 2.4M
CPU: 23ms
CGroup: /system.slice/bluetooth.service
└─455 /usr/lib/bluetooth/bluetoothd
3月 11 19:56:51 hx90gnome bluetoothd[455]: Endpoint registered: sender=:1.60 path=/MediaEndpoint/A2DPSource/aptx_ll_1
3月 11 19:56:51 hx90gnome bluetoothd[455]: Endpoint registered: sender=:1.60 path=/MediaEndpoint/A2DPSource/aptx_ll_0
3月 11 19:56:51 hx90gnome bluetoothd[455]: Endpoint registered: sender=:1.60 path=/MediaEndpoint/A2DPSource/aptx_ll_duplex_1
3月 11 19:56:51 hx90gnome bluetoothd[455]: Endpoint registered: sender=:1.60 path=/MediaEndpoint/A2DPSource/aptx_ll_duplex_0
3月 11 19:56:51 hx90gnome bluetoothd[455]: Endpoint registered: sender=:1.60 path=/MediaEndpoint/A2DPSource/faststream
3月 11 19:56:51 hx90gnome bluetoothd[455]: Endpoint registered: sender=:1.60 path=/MediaEndpoint/A2DPSource/faststream_duplex
3月 11 19:56:51 hx90gnome bluetoothd[455]: Endpoint registered: sender=:1.60 path=/MediaEndpoint/A2DPSink/opus_05
3月 11 19:56:51 hx90gnome bluetoothd[455]: Endpoint registered: sender=:1.60 path=/MediaEndpoint/A2DPSource/opus_05
3月 11 19:56:51 hx90gnome bluetoothd[455]: Endpoint registered: sender=:1.60 path=/MediaEndpoint/A2DPSink/opus_05_duplex
3月 11 19:56:51 hx90gnome bluetoothd[455]: Endpoint registered: sender=:1.60 path=/MediaEndpoint/A2DPSource/opus_05_duplex
Output of inxi -Fxxc0z
System:
Kernel: 6.2.2-arch1-1 arch: x86_64 bits: 64 compiler: gcc v: 12.2.1
Desktop: GNOME v: 43.3 tk: GTK v: 3.24.37 wm: gnome-shell dm: 1: GDM
2: LightDM note: stopped Distro: EndeavourOS base: Arch Linux
Machine:
Type: Desktop Mobo: N/A model: HX90 serial: <superuser required>
UEFI: American Megatrends LLC. v: 5.19 date: 10/11/2021
Battery:
Device-1: hid-00:12:a1:70:6c:19-battery model: HHKB-BT serial: N/A
charge: N/A status: discharging
Device-2: hidpp_battery_0 model: Logitech ERGO M575 Trackball
serial: <filter> charge: 95% status: discharging
CPU:
Info: 8-core model: AMD Ryzen 9 5900HX with Radeon Graphics bits: 64
type: MT MCP arch: Zen 3 rev: 0 cache: L1: 512 KiB L2: 4 MiB L3: 16 MiB
Speed (MHz): avg: 1987 high: 3300 min/max: 1200/4679 boost: enabled cores:
1: 1200 2: 3300 3: 3300 4: 1200 5: 1200 6: 3300 7: 1200 8: 1200 9: 1200
10: 3300 11: 1200 12: 1200 13: 1200 14: 3300 15: 3300 16: 1200
bogomips: 105442
Flags: avx avx2 ht lm nx pae sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3 svm
Graphics:
Device-1: AMD Cezanne [Radeon Vega Series / Radeon Mobile Series]
driver: amdgpu v: kernel arch: GCN-5 pcie: speed: 8 GT/s lanes: 16 ports:
active: HDMI-A-1 empty: DP-1,DP-2,HDMI-A-2 bus-ID: 04:00.0
chip-ID: 1002:1638 temp: 28.0 C
Display: wayland server: X.org v: 1.21.1.7 with: Xwayland v: 22.1.8
compositor: gnome-shell driver: X: loaded: amdgpu
unloaded: modesetting,radeon alternate: fbdev,vesa dri: radeonsi
gpu: amdgpu display-ID: 0
Monitor-1: HDMI-A-1 model: Beyond TV res: 3840x2160 dpi: 81
diag: 1387mm (54.6")
API: OpenGL v: 4.6 Mesa 22.3.6 renderer: AMD Radeon Graphics (renoir LLVM
15.0.7 DRM 3.49 6.2.2-arch1-1) direct-render: Yes
Audio:
Device-1: AMD Renoir Radeon High Definition Audio driver: snd_hda_intel
v: kernel bus-ID: 1-1:2 pcie: chip-ID: 0d8c:0014 speed: 8 GT/s lanes: 16
bus-ID: 04:00.1 chip-ID: 1002:1637
Device-2: AMD ACP/ACP3X/ACP6x Audio Coprocessor driver: N/A pcie:
speed: 8 GT/s lanes: 16 bus-ID: 04:00.5 chip-ID: 1022:15e2
Device-3: AMD Family 17h/19h HD Audio vendor: Realtek
driver: snd_hda_intel v: kernel pcie: speed: 8 GT/s lanes: 16
bus-ID: 04:00.6 chip-ID: 1022:15e3
Device-4: C-Media Audio Adapter (Unitek Y-247A) type: USB
driver: cmedia_hs100b,snd-usb-audio,usbhid
Sound API: ALSA v: k6.2.2-arch1-1 running: yes
Sound Server-1: PulseAudio v: 16.1 running: no
Sound Server-2: PipeWire v: 0.3.66 running: yes
Network:
Device-1: Intel Ethernet I225-V driver: igc v: kernel pcie: speed: 5 GT/s
lanes: 1 port: N/A bus-ID: 02:00.0 chip-ID: 8086:15f3
IF: eno1 state: down mac: <filter>
Device-2: MEDIATEK MT7921K Wi-Fi 6E 80MHz driver: mt7921e v: kernel pcie:
speed: 5 GT/s lanes: 1 bus-ID: 03:00.0 chip-ID: 14c3:0608
IF: wlan0 state: up mac: <filter>
Bluetooth:
Device-1: MediaTek Wireless_Device type: USB driver: btusb v: 0.8
bus-ID: 3-4:3 chip-ID: 0e8d:0608
Report: rfkill ID: hci0 rfk-id: 0 state: up address: see --recommends
Drives:
Local Storage: total: 465.76 GiB used: 58.03 GiB (12.5%)
ID-1: /dev/nvme0n1 vendor: Samsung model: SSD 970 EVO Plus 500GB
size: 465.76 GiB speed: 31.6 Gb/s lanes: 4 serial: <filter> temp: 28.9 C
Partition:
ID-1: / size: 457.09 GiB used: 58.03 GiB (12.7%) fs: ext4
dev: /dev/nvme0n1p2
ID-2: /boot/efi size: 299.4 MiB used: 312 KiB (0.1%) fs: vfat
dev: /dev/nvme0n1p1
Swap:
ID-1: swap-1 type: file size: 512 MiB used: 0 KiB (0.0%) priority: -2
file: /swapfile
Sensors:
System Temperatures: cpu: 29.2 C mobo: N/A gpu: amdgpu temp: 25.0 C
Fan Speeds (RPM): N/A
Info:
Processes: 324 Uptime: 35m Memory: 23.39 GiB used: 2.72 GiB (11.6%)
Init: systemd v: 253 default: graphical Compilers: gcc: 12.2.1
Packages: 1091 pm: pacman pkgs: 1072 pm: flatpak pkgs: 19 Shell: fish
v: 3.6.0 running-in: tilix inxi: 3.3.25
Thanks a lot for your help.
My computer is a desktop machine, but it has a laptop CPU.
I cannot really close the lid 
But thanks a lot, I have noted your potential solution.
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