私のラップトップ（Arch Linux）をArduinoに接続したいです。 bluezを介して接続し、arduino側でhc-05を使用しました。
問題は、bluezがAndroid携帯にうまく接続され、Android携帯がhc-05にうまく接続されていますが、bluezをhc-05に接続しようとすると決して接続されないことです。
ペアリングは成功しましたが、接続できません。今朝早くペアリングしようとしましたがペアリングできませんでしたが、接続してみると接続になりますね！再起動後は逆です。ペアリングはされますが、接続されません。
エラーは次のとおりです。
[bluetooth]# connect 98:D3:31:90:24:76
Attempting to connect to 98:D3:31:90:24:76
[CHG] Device 98:D3:31:90:24:76 Connected: yes
[CHG] Device 98:D3:31:90:24:76 ServicesResolved: yes
Failed to connect: org.bluez.Error.NotAvailable
[CHG] Device 98:D3:31:90:24:76 ServicesResolved: no
[CHG] Device 98:D3:31:90:24:76 Connected: no
[bluetooth]#
dmesgは -
dmesg | grep luetooth
[ 8.424435] Bluetooth: Core ver 2.22
[ 8.424453] Bluetooth: HCI device and connection manager initialized
[ 8.424459] Bluetooth: HCI socket layer initialized
[ 8.424461] Bluetooth: L2CAP socket layer initialized
[ 8.424467] Bluetooth: SCO socket layer initialized
[ 8.588905] Bluetooth: hci0: rtl: examining hci_ver=06 hci_rev=000b lmp_ver=06 lmp_subver=8723
[ 8.588907] Bluetooth: hci0: rtl: loading rtl_bt/rtl8723b_config.bin
[ 8.752742] Bluetooth: hci0: rtl: loading rtl_bt/rtl8723b_fw.bin
[ 8.765889] Bluetooth: hci0: rom_version status=0 version=1
[ 8.765911] Bluetooth: cfg_sz 44, total size 22540
[ 11.659685] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 11.659687] Bluetooth: BNEP filters: protocol multicast
[ 11.659692] Bluetooth: BNEP socket layer initialized
[ 1150.278244] Bluetooth: RFCOMM TTY layer initialized
[ 1150.278253] Bluetooth: RFCOMM socket layer initialized
[ 1150.278275] Bluetooth: RFCOMM ver 1.11
[ 2967.008290] Bluetooth: hci0 urb ffff88013e088600 failed to resubmit (2)
[ 3644.900996] Bluetooth: hci0: rtl: examining hci_ver=06 hci_rev=0e2f lmp_ver=06 lmp_subver=9f73
[ 3644.900998] Bluetooth: rtl: assuming no firmware upload needed.
[ 5274.608968] Bluetooth: hci0: rtl: examining hci_ver=06 hci_rev=000b lmp_ver=06 lmp_subver=8723
[ 5274.608970] Bluetooth: hci0: rtl: loading rtl_bt/rtl8723b_config.bin
[ 5274.609003] Bluetooth: hci0: rtl: loading rtl_bt/rtl8723b_fw.bin
[ 5274.609950] Bluetooth: hci0: rom_version status=0 version=1
[ 5274.609964] Bluetooth: cfg_sz 44, total size 22540
[root@Turing ~]# dmesg | grep luetooth
[ 8.424435] Bluetooth: Core ver 2.22
[ 8.424453] Bluetooth: HCI device and connection manager initialized
[ 8.424459] Bluetooth: HCI socket layer initialized
[ 8.424461] Bluetooth: L2CAP socket layer initialized
[ 8.424467] Bluetooth: SCO socket layer initialized
[ 8.588905] Bluetooth: hci0: rtl: examining hci_ver=06 hci_rev=000b lmp_ver=06 lmp_subver=8723
[ 8.588907] Bluetooth: hci0: rtl: loading rtl_bt/rtl8723b_config.bin
[ 8.752742] Bluetooth: hci0: rtl: loading rtl_bt/rtl8723b_fw.bin
[ 8.765889] Bluetooth: hci0: rom_version status=0 version=1
[ 8.765911] Bluetooth: cfg_sz 44, total size 22540
[ 11.659685] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 11.659687] Bluetooth: BNEP filters: protocol multicast
[ 11.659692] Bluetooth: BNEP socket layer initialized
[ 1150.278244] Bluetooth: RFCOMM TTY layer initialized
[ 1150.278253] Bluetooth: RFCOMM socket layer initialized
[ 1150.278275] Bluetooth: RFCOMM ver 1.11
[ 2967.008290] Bluetooth: hci0 urb ffff88013e088600 failed to resubmit (2)
[ 3644.900996] Bluetooth: hci0: rtl: examining hci_ver=06 hci_rev=0e2f lmp_ver=06 lmp_subver=9f73
[ 3644.900998] Bluetooth: rtl: assuming no firmware upload needed.
[ 5274.608968] Bluetooth: hci0: rtl: examining hci_ver=06 hci_rev=000b lmp_ver=06 lmp_subver=8723
[ 5274.608970] Bluetooth: hci0: rtl: loading rtl_bt/rtl8723b_config.bin
[ 5274.609003] Bluetooth: hci0: rtl: loading rtl_bt/rtl8723b_fw.bin
[ 5274.609950] Bluetooth: hci0: rom_version status=0 version=1
[ 5274.609964] Bluetooth: cfg_sz 44, total size 22540