After installing bluedevil in KDE, enabled bluetooth service daemon and checked bluetooth status I saw an warnings: lip 17 15:48:53 manjaro bluetoothd[649]: Sap driver initialization failed. lip 17 15:48:53 manjaro bluetoothd[649]: sap-server: Operation not permitted (1) lip 17 15:48:54 manjaro bluetoothd[649]: hci0 Load Connection Parameters failed: Unknown Command (0x01) Service bluetooth working good (anyway) but I don't know what it is (warning or bug). Full listing logs in attachment. This issue happened on all current kernel (3.16 RC5 too). ====================================================================================== sudo systemctl status bluetooth -l ====================================================================================== ● bluetooth.service - Bluetooth service Loaded: loaded (/usr/lib/systemd/system/bluetooth.service; enabled) Active: active (running) since czw 2014-07-17 15:48:51 CEST; 5h 38min ago Docs: man:bluetoothd(8) Main PID: 649 (bluetoothd) Status: "Running" CGroup: /system.slice/bluetooth.service └─649 /usr/lib/bluetooth/bluetoothd lip 17 15:48:51 manjaro bluetoothd[649]: Bluetooth daemon 5.21 lip 17 15:48:51 manjaro bluetoothd[649]: Starting SDP server lip 17 15:48:53 manjaro bluetoothd[649]: Bluetooth management interface 1.6 initialized lip 17 15:48:53 manjaro bluetoothd[649]: Sap driver initialization failed. lip 17 15:48:53 manjaro bluetoothd[649]: sap-server: Operation not permitted (1) lip 17 15:48:54 manjaro bluetoothd[649]: hci0 Load Connection Parameters failed: Unknown Command (0x01) lip 17 15:49:30 manjaro bluetoothd[649]: Endpoint registered: sender=:1.27 path=/MediaEndpoint/A2DPSource lip 17 15:49:30 manjaro bluetoothd[649]: Endpoint registered: sender=:1.27 path=/MediaEndpoint/A2DPSink ====================================================================================== dmesg |grep Bluetooth ====================================================================================== [ 11.254291] Bluetooth: Core ver 2.19 [ 11.254326] Bluetooth: HCI device and connection manager initialized [ 11.254337] Bluetooth: HCI socket layer initialized [ 11.254342] Bluetooth: L2CAP socket layer initialized [ 11.254357] Bluetooth: SCO socket layer initialized [ 18.113763] Bluetooth: BNEP (Ethernet Emulation) ver 1.3 [ 18.113770] Bluetooth: BNEP filters: protocol multicast [ 18.113784] Bluetooth: BNEP socket layer initialized [ 33.140350] Bluetooth: RFCOMM TTY layer initialized [ 33.140370] Bluetooth: RFCOMM socket layer initialized [ 33.140375] Bluetooth: RFCOMM ver 1.11 ====================================================================================== sudo lsusb -vv (info about BT device) ====================================================================================== Bus 003 Device 003: ID 13d3:3362 IMC Networks Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.10 bDeviceClass 224 Wireless bDeviceSubClass 1 Radio Frequency bDeviceProtocol 1 Bluetooth bMaxPacketSize0 64 idVendor 0x13d3 IMC Networks idProduct 0x3362 bcdDevice 0.02 iManufacturer 1 Atheros Communications iProduct 2 Bluetooth USB Host Controller iSerial 3 Alaska Day 2006 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 177 bNumInterfaces 2 bConfigurationValue 1 iConfiguration 4 BT HCI bmAttributes 0xe0 Self Powered Remote Wakeup MaxPower 100mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 3 bInterfaceClass 224 Wireless bInterfaceSubClass 1 Radio Frequency bInterfaceProtocol 1 Bluetooth iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0010 1x 16 bytes bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x82 EP 2 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x02 EP 2 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 1 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 224 Wireless bInterfaceSubClass 1 Radio Frequency bInterfaceProtocol 1 Bluetooth iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x83 EP 3 IN bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0000 1x 0 bytes bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x03 EP 3 OUT bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0000 1x 0 bytes bInterval 1 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 1 bNumEndpoints 2 bInterfaceClass 224 Wireless bInterfaceSubClass 1 Radio Frequency bInterfaceProtocol 1 Bluetooth iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x83 EP 3 IN bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0009 1x 9 bytes bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x03 EP 3 OUT bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0009 1x 9 bytes bInterval 1 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 2 bNumEndpoints 2 bInterfaceClass 224 Wireless bInterfaceSubClass 1 Radio Frequency bInterfaceProtocol 1 Bluetooth iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x83 EP 3 IN bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0011 1x 17 bytes bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x03 EP 3 OUT bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0011 1x 17 bytes bInterval 1 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 3 bNumEndpoints 2 bInterfaceClass 224 Wireless bInterfaceSubClass 1 Radio Frequency bInterfaceProtocol 1 Bluetooth iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x83 EP 3 IN bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0019 1x 25 bytes bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x03 EP 3 OUT bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0019 1x 25 bytes bInterval 1 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 4 bNumEndpoints 2 bInterfaceClass 224 Wireless bInterfaceSubClass 1 Radio Frequency bInterfaceProtocol 1 Bluetooth iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x83 EP 3 IN bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0021 1x 33 bytes bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x03 EP 3 OUT bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0021 1x 33 bytes bInterval 1 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 5 bNumEndpoints 2 bInterfaceClass 224 Wireless bInterfaceSubClass 1 Radio Frequency bInterfaceProtocol 1 Bluetooth iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x83 EP 3 IN bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0031 1x 49 bytes bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x03 EP 3 OUT bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0031 1x 49 bytes bInterval 1 Device Status: 0x0001 Self Powered ====================================================================================== lsmod ====================================================================================== Module Size Used by uas 16948 0 usb_storage 50327 1 uas btrfs 889654 0 xor 11920 1 btrfs raid6_pq 90886 1 btrfs ufs 69534 0 hfsplus 95589 0 hfs 46689 0 minix 29071 0 ntfs 193297 0 vfat 10631 0 msdos 7726 0 fat 54968 2 vfat,msdos jfs 174773 0 xfs 842013 0 libcrc32c 1002 1 xfs dm_mod 85804 0 fuse 83166 3 rfcomm 53175 12 bbswitch 6470 0 bnep 13373 2 uvcvideo 74984 0 snd_hda_codec_hdmi 40221 1 snd_hda_codec_realtek 59231 1 snd_hda_codec_generic 56366 1 snd_hda_codec_realtek videobuf2_vmalloc 3368 1 uvcvideo r8169 59255 0 videobuf2_memops 2239 1 videobuf2_vmalloc snd_hda_intel 22767 5 videobuf2_core 39819 1 uvcvideo v4l2_common 4891 1 videobuf2_core snd_hda_controller 22911 1 snd_hda_intel videodev 124587 3 uvcvideo,v4l2_common,videobuf2_core snd_hda_codec 104840 5 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_intel,snd_hda_controller snd_hwdep 6652 1 snd_hda_codec ath3k 8549 0 arc4 2064 2 ath9k 91458 0 ath9k_common 13770 1 ath9k ath9k_hw 397801 2 ath9k_common,ath9k ath 19483 3 ath9k_common,ath9k,ath9k_hw mac80211 508822 1 ath9k cfg80211 446433 4 ath,ath9k_common,ath9k,mac80211 ecb 2201 1 btusb 21305 0 snd_pcm 83279 5 snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel,snd_hda_controller mii 4251 1 r8169 media 12613 2 uvcvideo,videodev rtsx_pci_ms 7578 0 memstick 7664 1 rtsx_pci_ms snd_timer 19294 1 snd_pcm mei_me 13869 0 bluetooth 386277 33 bnep,ath3k,btusb,rfcomm 6lowpan_iphc 11556 1 bluetooth nvram 6034 0 snd 61340 17 snd_hda_codec_realtek,snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_pcm,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel soundcore 5551 2 snd,snd_hda_codec mei 70201 1 mei_me shpchp 25706 0 i915 858843 4 drm_kms_helper 42670 1 i915 drm 247997 6 i915,drm_kms_helper intel_gtt 12856 1 i915 i2c_algo_bit 5480 1 i915 iTCO_wdt 5663 0 ip6t_REJECT 3980 1 iTCO_vendor_support 1929 1 iTCO_wdt gpio_ich 5009 0 xt_hl 1337 6 ip6t_rt 5312 3 joydev 10367 0 mousedev 10976 0 lpc_ich 14008 0 i2c_i801 11301 0 i2c_core 41648 7 drm,i915,i2c_i801,drm_kms_helper,i2c_algo_bit,v4l2_common,videodev nf_conntrack_ipv6 9661 6 nf_defrag_ipv6 26062 1 nf_conntrack_ipv6 ipt_REJECT 2505 1 ac 3595 0 xt_limit 2009 1 serio_raw 5009 0 xt_tcpudp 3207 22 xt_addrtype 2917 4 mxm_wmi 1595 0 nf_conntrack_ipv4 9474 6 nf_defrag_ipv4 1499 1 nf_conntrack_ipv4 asus_nb_wmi 7848 0 asus_wmi 16413 1 asus_nb_wmi sparse_keymap 3242 1 asus_wmi led_class 3611 2 ath9k,asus_wmi rfkill 15971 5 cfg80211,bluetooth,asus_wmi mac_hid 3273 0 xt_conntrack 3425 12 evdev 11584 19 thermal 9039 0 video 12923 2 i915,asus_wmi coretemp 6324 0 hwmon 3346 2 coretemp,asus_wmi psmouse 94728 0 intel_rapl 12332 0 wmi 8539 2 mxm_wmi,asus_wmi ip6table_filter 1556 1 processor 25153 0 x86_pkg_temp_thermal 7311 0 intel_powerclamp 9506 0 kvm_intel 136121 0 kvm 409627 1 kvm_intel crct10dif_pclmul 4650 0 crc32_pclmul 2955 0 crc32c_intel 14217 2 ghash_clmulni_intel 4362 0 aesni_intel 144871 1 aes_x86_64 7463 1 aesni_intel lrw 3821 1 aesni_intel gf128mul 6018 1 lrw glue_helper 4737 1 aesni_intel ablk_helper 2100 1 aesni_intel cryptd 8537 3 ghash_clmulni_intel,aesni_intel,ablk_helper microcode 17229 0 ip6_tables 17729 1 ip6table_filter button 4765 1 i915 battery 9484 0 nf_conntrack_netbios_ns 1141 0 nf_conntrack_broadcast 1253 1 nf_conntrack_netbios_ns nf_nat_ftp 2052 0 nf_nat 13346 1 nf_nat_ftp nf_conntrack_ftp 10015 1 nf_nat_ftp nf_conntrack 80364 8 nf_nat_ftp,nf_conntrack_netbios_ns,nf_nat,xt_conntrack,nf_conntrack_broadcast,nf_conntrack_ftp,nf_conntrack_ipv4,nf_conntrack_ipv6 iptable_filter 1552 1 ip_tables 18051 1 iptable_filter x_tables 17536 12 ip6table_filter,xt_hl,ip_tables,xt_tcpudp,xt_limit,xt_conntrack,iptable_filter,ip6t_rt,ipt_REJECT,ip6_tables,xt_addrtype,ip6t_REJECT msr 2789 0 nfs 198036 0 lockd 78990 1 nfs sunrpc 243500 2 nfs,lockd fscache 48981 1 nfs pci_stub 1381 1 vboxpci 15059 0 vboxnetflt 17828 0 vboxnetadp 18547 0 vboxdrv 347074 3 vboxnetadp,vboxnetflt,vboxpci ext4 494663 2 crc16 1359 2 ext4,bluetooth mbcache 9155 1 ext4 jbd2 83012 1 ext4 hid_generic 1217 0 usbhid 41251 0 hid 97340 2 hid_generic,usbhid sd_mod 37500 4 sr_mod 14967 0 crc_t10dif 1135 1 sd_mod cdrom 45175 1 sr_mod crct10dif_common 1436 2 crct10dif_pclmul,crc_t10dif rtsx_pci_sdmmc 13129 0 atkbd 16878 0 libps2 4571 2 atkbd,psmouse mmc_core 100499 1 rtsx_pci_sdmmc ahci 24299 3 libahci 22070 1 ahci libata 174089 2 ahci,libahci ehci_pci 4152 0 xhci_hcd 148734 0 ehci_hcd 64683 1 ehci_pci scsi_mod 137763 5 uas,usb_storage,libata,sd_mod,sr_mod rtsx_pci 33791 2 rtsx_pci_ms,rtsx_pci_sdmmc usbcore 192472 9 uas,ath3k,btusb,uvcvideo,usb_storage,ehci_hcd,ehci_pci,usbhid,xhci_hcd usb_common 1712 1 usbcore i8042 13666 1 libps2 serio 11018 9 serio_raw,atkbd,i8042,psmouse lz4 1625 8 lz4_compress 2966 1 lz4