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From:   bugzilla-daemon@kernel.org
To:     linux-bluetooth@vger.kernel.org
Subject: [Bug 216819] New: kernel detects Mediatek bluetooth as Lite-On and
 not working
Date:   Sun, 18 Dec 2022 12:28:30 +0000
Message-ID: <bug-216819-62941@https.bugzilla.kernel.org/>
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https://bugzilla.kernel.org/show_bug.cgi?id=3D216819

            Bug ID: 216819
           Summary: kernel detects Mediatek bluetooth as Lite-On and not
                    working
           Product: Drivers
           Version: 2.5
    Kernel Version: 5.19.0-26-generic
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Bluetooth
          Assignee: linux-bluetooth@vger.kernel.org
          Reporter: baxooshi@gmail.com
        Regression: No

I have an Acer Aspire3 A315-59G laptop. It has Mediatek bluetooth and wifi.
wifi works good, even better than how it works on Windows. But the bluetooth
does not work.=20
I also tested it on fedora with kernel 6.0.7 and 6.0.12 and did not worked
either

systemctl status bluetooth.service
=E2=97=8F bluetooth.service - Bluetooth service
     Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled; preset:
enabled)
     Active: active (running) since Sun 2022-12-18 13:19:40 +0330; 2h 14min=
 ago
       Docs: man:bluetoothd(8)
   Main PID: 964 (bluetoothd)
     Status: "Running"
      Tasks: 1 (limit: 28404)
     Memory: 1.8M
        CPU: 30ms
     CGroup: /system.slice/bluetooth.service
             =E2=94=94=E2=94=80964 /usr/lib/bluetooth/bluetoothd

Dec 18 13:19:40 ws systemd[1]: Starting Bluetooth service...
Dec 18 13:19:40 ws systemd[964]: ConfigurationDirectory 'bluetooth' already
exists but the mode is different. (File system: 755 ConfigurationDirectoryM=
ode:
555)
Dec 18 13:19:40 ws bluetoothd[964]: Bluetooth daemon 5.65
Dec 18 13:19:40 ws bluetoothd[964]: Starting SDP server
Dec 18 13:19:40 ws systemd[1]: Started Bluetooth service.
Dec 18 13:19:40 ws bluetoothd[964]: Bluetooth management interface 1.22
initialized


lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 0408:4033 Quanta Computer, Inc. ACER HD User Facing
Bus 001 Device 002: ID 1ea7:0064 SHARKOON Technologies GmbH 2.4GHz Wireless
rechargeable vertical mouse [More&Better]
Bus 001 Device 004: ID 04ca:3801 Lite-On Technology Corp. Wireless_Device
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 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

Windows .inf file for that hardware
%Generic.DeviceDesc%            =3D MTKBT,=20=20=20=20=20=20=20=20=20=20=20=
=20=20=20=20=20=20=20=20
USB\VID_04CA&PID_3801&MI_00

rfkill list
0: acer-wireless: Wireless LAN
        Soft blocked: no
        Hard blocked: no
1: acer-bluetooth: Bluetooth
        Soft blocked: no
        Hard blocked: no
2: hci0: Bluetooth
        Soft blocked: no
        Hard blocked: no
3: phy0: Wireless LAN
        Soft blocked: no
        Hard blocked: no

--=20
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