$ systemctl status bluetooth
● bluetooth.service - Bluetooth service
     Loaded: loaded (/usr/lib/systemd/system/bluetooth.service; enabled; vendor preset: disabled)
     Active: active (running) since Wed 2020-04-22 23:11:05 +07; 1min 15s ago
       Docs: man:bluetoothd(8)
   Main PID: 379 (bluetoothd)
     Status: "Running"
      Tasks: 1 (limit: 4595)
     Memory: 3.0M
     CGroup: /system.slice/bluetooth.service
             └─379 /usr/lib/bluetooth/bluetoothd

апр 22 23:11:04 boris-A24 systemd[1]: Starting Bluetooth service...
апр 22 23:11:04 boris-A24 bluetoothd[379]: Bluetooth daemon 5.54
апр 22 23:11:05 boris-A24 systemd[1]: Started Bluetooth service.
апр 22 23:11:05 boris-A24 bluetoothd[379]: Starting SDP server
апр 22 23:11:05 boris-A24 bluetoothd[379]: Bluetooth management interface 1.15 initialized

 $ bluetoothctl
Agent registered
[bluetooth]# power on
No default controller available

 $ rfkill list
0: hci0: Bluetooth
        Soft blocked: no
        Hard blocked: no
1: phy0: Wireless LAN
        Soft blocked: no
        Hard blocked: no

 $ ps aux | grep blue
root         379  0.0  0.1  10148  5168 ?        Ss   23:11   0:00 /usr/lib/bluetooth/bluetoothd
boris       1061  0.0  0.1  43724  7644 ?        Ss   23:11   0:00 /usr/lib/bluetooth/obexd
boris       1384  0.0  0.0   6316  2344 pts/3    S+   23:12   0:00 grep --colour=auto blue

 $ 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)
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04)
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.5 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 6 (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 HM65 Express Chipset LPC Controller (rev 05)
00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family 6 port Mobile 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 GF108M [GeForce GT 520M] (rev ff)
01:00.1 Audio device: NVIDIA Corporation GF108 High Definition Audio Controller (rev ff)
03:00.0 Network controller: Qualcomm Atheros AR9285 Wireless Network Adapter (PCI-Express) (rev 01)
04:00.0 USB controller: Fresco Logic FL1000G USB 3.0 Host Controller (rev 04)
05:00.0 Ethernet controller: Qualcomm Atheros AR8151 v2.0 Gigabit Ethernet (rev c0)

 $ lsmod | grep blue
bluetooth             675840  12 btrtl,btintel,btbcm,bnep,btusb
ecdh_generic           16384  1 bluetooth
rfkill                 28672  8 bluetooth,cfg80211
crc16                  16384  2 bluetooth,ext4

 $ lsusb | grep -i blue
Bus 001 Device 004: ID 0cf3:3005 Qualcomm Atheros Communications AR3011 Bluetooth

 $ journalctl -xe | grep -i blue
апр 22 23:11:40 boris-A24 kded5[631]: bluedevil: Created
апр 22 23:11:41 boris-A24 kded5[631]: bluedevil: ObexManager operational changed false
апр 22 23:11:41 boris-A24 dbus-daemon[603]: [session uid=1000 pid=603] Activating via systemd: service name='org.bluez.obex' unit='dbus-org.bluez.obex.service' requested by ':1.6' (uid=1000 pid=631 comm="kded5 ")
апр 22 23:11:41 boris-A24 systemd[528]: Starting Bluetooth OBEX service...
апр 22 23:11:41 boris-A24 kded5[631]: bluedevil: Bluetooth operational changed true
апр 22 23:11:41 boris-A24 kded5[631]: bluedevil: Agent registered
апр 22 23:11:41 boris-A24 kded5[631]: bluedevil: Requested default Agent
апр 22 23:11:41 boris-A24 dbus-daemon[603]: [session uid=1000 pid=603] Successfully activated service 'org.bluez.obex'
апр 22 23:11:41 boris-A24 systemd[528]: Started Bluetooth OBEX service.
апр 22 23:11:41 boris-A24 kded5[631]: bluedevil: ObexManager operational changed true
апр 22 23:11:41 boris-A24 kded5[631]: bluedevil: ObexAgent registered
апр 22 23:11:54 boris-A24 kcmshell5[1338]: kf5.kconfigwidgets: A widget named ' "kcfg_enableGlobalBluetooth" ' was found but there is no setting named ' "enableGlobalBluetooth" '
апр 22 23:17:40 boris-A24 sudo[1770]:    boris : TTY=pts/3 ; PWD=/home/boris ; USER=root ; COMMAND=/bin/bluetoothctl

vs220

vasek
частичном обновлении.

Пусть покажет
pacman -Qs xorg-server
Стандартный обновился вместе с nettle 7июля, или стоит не стандартный или протухшие репы в миррорлисте

zotkindm
Попробуй сим линк на файл создать.

vasek
borgch, на первый взгляд причина в частичном обновлении. Кстати, похожая проблема обсуждалась на BBS - пришли к такому же выводу (отстали зеркала, с которых обновлялись).
Если после этого не пробовал повторно обновиться, то обновись по новой. Похоже не обновился пакет nettle.

PS - pacman -Qo /usr/lib/libnettle.so.7
/usr/lib/libnettle.so.7 принадлежит nettle 3.5.1-1

nafanja
полюби другой и проблема решена )))