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Bluetooth: Protocol not available
Post by MisterMe » Fri Sep 11, 2020 5:44 am
I seem to have done something stupid and destroyed my bluetooth setup. I recently purchased the Sony WH1000XM4 headphones and connected them in Mint. I installed blueman and it connected right away and has been working fine all week.
This morning I decided to check if my connection was using LDAC. After surfing through a few forums I found a reference to the command: «pactl list» to show if LDAC was found somewhere. I didn’t see it, so I googled to find a reference for installing it somehow. I found a recent post:
sudo add-apt-repository ppa:eh5/pulseaudio-a2dp
sudo apt update
sudo apt install libavcodec-dev libldac pulseaudio-module-bluetooth
From this point forward I can no longer connect to my headphones. I get ‘Connection Failed: blueman.bluez.errors.DBusFailedError: Protocol not available’ when attempting to connect the headset in the blueman app.
1) removing all the above packages
2) removing the repo ‘ppa:eh5/pulseaudio-a2dp’ and updating
3) removing and reinstalling blueman
4) removing and reinstalling pulseaudio-module-bluetooth
5) restarting pulseaudio: ‘sudo pulseaudio -k’
That was to start with. Since then I’ve been trying to uninstall and reinstall various things and restarting my machine over and over to see if something could possibly work.
Possibly relevant hardware and software info:
System: Host: mymachine Kernel: 5.4.0-47-generic x86_64 bits: 64 compiler: gcc v: 7.5.0 Desktop: Cinnamon 4.4.8
wm: muffin 4.4.4 dm: LightDM 1.26.0 Distro: Linux Mint 19.3 Tricia base: Ubuntu 18.04 bionic
Network: Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet vendor: CLEVO/KAPOK driver: r8169 v: kernel
port: d000 bus ID: 03:00.1 chip ID: 10ec:8168
IF: enp3s0f1 state: down mac:
Device-2: Intel Wireless 7265 driver: iwlwifi v: kernel port: d000 bus ID: 04:00.0 chip ID: 8086:095a
IF: wlp4s0 state: up mac:
I’ve been working on this for 4 hours straight with no success. I know very little about the bluetooth system, so any help would be deeply appreciated.
Last edited by LockBot on Wed Dec 28, 2022 7:16 am, edited 1 time in total.
Reason: Topic automatically closed 6 months after creation. New replies are no longer allowed.
Arch Linux
I’m an idiot and didn’t follow all of the directions on the wiki.
The solution to my problem:
sudo pacman -S pulseaudio-bluetoothsudo nano /etc/bluetooth/main.confadd line «Enable=Source,Sink,Media,Socket» under [general]
Props to adesh and HilmTye for helping me with this
So. yeah. I’ve spent twelve hours trying to solve this problem.
I can’t connect with my device, but I can pair.
Device: Altec Lansing earbuds [ https://www.amazon.com/Altec-Lansing-MZ … B010UU5ND8 ]
System: computer=MSI-Ghost -> bios=GRUB -> os=ARCH [current] ->de= KDE [arch-repo_current]
I also have a whole bloatload of KDE apps- otherwise it’s a clean install.
I’ve made three attempts at this: One using modern methods, one using ancient methods, and one using both ancient and modern methods.
Here is a list of packages I’ve installed:
bluez bluez-utils pulseaudio-bluetooth blueman dbus alsa-plugins pulseaudio pulseaudio-alsa pavucontrol ponymixHere is my error in console:
[bluetooth]# pair 00:25:DB:39:62:5B Attempting to pair with 00:25:DB:39:62:5B [CHG] Device 00:25:DB:39:62:5B Connected: yes [CHG] Device 00:25:DB:39:62:5B Modalias: bluetooth:v0039p1582d0305 [CHG] Device 00:25:DB:39:62:5B UUIDs: 00001108-0000-1000-8000-00805f9b34fb [CHG] Device 00:25:DB:39:62:5B UUIDs: 0000110b-0000-1000-8000-00805f9b34fb [CHG] Device 00:25:DB:39:62:5B UUIDs: 0000110c-0000-1000-8000-00805f9b34fb [CHG] Device 00:25:DB:39:62:5B UUIDs: 0000110e-0000-1000-8000-00805f9b34fb [CHG] Device 00:25:DB:39:62:5B UUIDs: 0000111e-0000-1000-8000-00805f9b34fb [CHG] Device 00:25:DB:39:62:5B UUIDs: 00001200-0000-1000-8000-00805f9b34fb [CHG] Device 00:25:DB:39:62:5B ServicesResolved: yes [CHG] Device 00:25:DB:39:62:5B Paired: yes Pairing successful [CHG] Device 00:25:DB:39:62:5B ServicesResolved: no [CHG] Device 00:25:DB:39:62:5B Connected: no [bluetooth]# connect 00:25:DB:39:62:5B Attempting to connect to 00:25:DB:39:62:5B Failed to connect: org.bluez.Error.FailedHere is my error in the «bluetooth devices» GUI (I think blueman installed the gui?)
Connection Failed: blueman.bluez.errors.DBusFailedError: Protocol not available. Here is my error in the Pulse journal:
-- Logs begin at Tue 2017-01-17 20:47:01 CST, end at Tue 2017-01-17 22:28:10 CST. -- Jan 17 22:25:54 squirrel plasmashell[542]: QXcbConnection: XCB error: 2 (BadValue), sequence: 41927, resource id: 67108869, major code: 142 (Unknown), minor code: 3 Jan 17 22:25:54 squirrel plasmashell[542]: QXcbConnection: XCB error: 2 (BadValue), sequence: 42136, resource id: 69206021, major code: 142 (Unknown), minor code: 3 Jan 17 22:25:54 squirrel plasmashell[542]: QXcbConnection: XCB error: 2 (BadValue), sequence: 42258, resource id: 52428824, major code: 142 (Unknown), minor code: 3 Jan 17 22:26:29 squirrel plasmashell[542]: QXcbConnection: XCB error: 2 (BadValue), sequence: 43015, resource id: 60817414, major code: 142 (Unknown), minor code: 3 Jan 17 22:26:29 squirrel plasmashell[542]: QXcbConnection: XCB error: 2 (BadValue), sequence: 43082, resource id: 52428824, major code: 142 (Unknown), minor code: 3 Jan 17 22:26:29 squirrel plasmashell[542]: QXcbConnection: XCB error: 2 (BadValue), sequence: 43237, resource id: 69206021, major code: 142 (Unknown), minor code: 3 Jan 17 22:26:31 squirrel plasmashell[542]: QXcbConnection: XCB error: 2 (BadValue), sequence: 43363, resource id: 67108869, major code: 142 (Unknown), minor code: 3 Jan 17 22:26:31 squirrel plasmashell[542]: QXcbConnection: XCB error: 2 (BadValue), sequence: 43412, resource id: 52428824, major code: 142 (Unknown), minor code: 3 Jan 17 22:26:36 squirrel plasmashell[542]: QXcbConnection: XCB error: 2 (BadValue), sequence: 45347, resource id: 60817414, major code: 142 (Unknown), minor code: 3 Jan 17 22:26:37 squirrel plasmashell[542]: QXcbConnection: XCB error: 2 (BadValue), sequence: 45476, resource id: 52428824, major code: 142 (Unknown), minor code: 3 Jan 17 22:26:50 squirrel plasmashell[542]: QXcbConnection: XCB error: 2 (BadValue), sequence: 48651, resource id: 60817414, major code: 142 (Unknown), minor code: 3 Jan 17 22:26:51 squirrel plasmashell[542]: QXcbConnection: XCB error: 2 (BadValue), sequence: 48744, resource id: 52428824, major code: 142 (Unknown), minor code: 3 Jan 17 22:27:02 squirrel plasmashell[542]: QXcbConnection: XCB error: 2 (BadValue), sequence: 49039, resource id: 60817414, major code: 142 (Unknown), minor code: 3 Jan 17 22:27:38 squirrel bluetoothd[373]: a2dp-sink profile connect failed for 00:25:DB:39:62:5B: Protocol not available Jan 17 22:27:42 squirrel kwin_x11[533]: QXcbConnection: XCB error: 3 (BadWindow), sequence: 19626, resource id: 71303175, major code: 15 (QueryTree), minor code: 0 Jan 17 22:27:58 squirrel plasmashell[542]: QXcbConnection: XCB error: 2 (BadValue), sequence: 51526, resource id: 54525964, major code: 142 (Unknown), minor code: 3 Jan 17 22:27:58 squirrel plasmashell[542]: QXcbConnection: XCB error: 2 (BadValue), sequence: 51552, resource id: 69206021, major code: 142 (Unknow Jan 17 22:27:58 squirrel plasmashell[542]: QXcbConnection: XCB error: 2 (BadValue), sequence: 51785, resource id: 52428824, major code: 142 (Unknow Jan 17 22:28:10 squirrel sudo[1407]: rachel : TTY=pts/2 ; PWD=/home/rachel ; USER=root ; COMMAND=/usr/bin/journalctl -n 20 Jan 17 22:28:10 squirrel sudo[1407]: pam_unix(sudo:session): session opened for user root by rachel(uid=0)(googling suggests that the «XCB error» entries are related to a KDE bug, so I’m thinking they’re not relevant? I’m pretty much an idiot though, so I shouldn’t have biased you with my irrelevant opinion.)
tl;dr: My computer’s insane inner-voices are all fairly unanimous: I’m missing bluetooth protocols.
This problem has a bounty of 12 cookies to the first man who points me toward the solution.
Last edited by sipiri (2017-01-18 19:38:33)
No supported bluetooth protocol stack found
I use windows 7 and C#， .net4.6.1 in VS2017. I used bluetooth CSR 4.0 dongle and csr hormony bluetooth stack as the third party Bluetooth drivers.. I followed this to write a hcitool program ： Looking to write Bluetooth ‘hcitool’ equivelant in Windows But when I tried to run the program to connect the BLE device. error occurs at this line
var dev = new BluetoothDeviceInfo(_searchAddress); The error is : No supported bluetooth protocol stack found. I have double checked and the parameters I pass is right(info + the device address)
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading; using InTheHand.Net.Bluetooth; using InTheHand.Net; using InTheHand.Net.Sockets; using System.Diagnostics; using System.Net.Sockets; namespace hcitool < partial class Program < static bool infoRatherThanName; static BluetoothAddress _searchAddress; static int Main(string[] args) < if (args.Length < 1) < Console.WriteLine("Please specify command."); return 2; >var cmd = args[0]; switch (cmd) < case "name": infoRatherThanName = false; break; case "info": infoRatherThanName = true; break; //- case "dev": return ShowRadios(); //case "auth": // return CauseAuth(GETADDRESS()); default: throw new NotImplementedException("Command: '" + cmd + "'"); >if (args.Length < 2) < Console.WriteLine("Please specify device address."); return 2; >var addrS = args[1]; _searchAddress = BluetoothAddress.Parse(addrS); // var dev = new BluetoothDeviceInfo(_searchAddress); bool isInRange = GetCanConnectTo(dev); if (isInRange) < PrintDevice(dev); >else < Console.WriteLine("Can't see that device."); >// Console.WriteLine("simple"); return Simple(); //return Fancier(); > //---- private static int ShowRadios() < BluetoothRadio[] list; try < list = BluetoothRadio.AllRadios; >catch (Exception) < return 1; >Debug.Assert(list.Length != 0, "Expect zero radios case to raise an error."); foreach (var curR in list) < Console.WriteLine("* ''", curR.LocalAddress, curR.Name); Console.WriteLine("", curR.SoftwareManufacturer); Console.WriteLine("", curR.Manufacturer); Console.WriteLine("", curR.Mode); >//for return 0; > private static int CauseAuth(BluetoothAddress addr) < BluetoothSecurity.PairRequest(addr, null); return 0; >//---- static int Simple() < BluetoothDeviceInfo[] devices; BluetoothDeviceInfo foundDev = null; var cli = new BluetoothClient(); // Fast: Remembered/Authenticated devices = cli.DiscoverDevices(255, true, true, false, false); SimpleCheckDevice(devices, ref foundDev); if (foundDev == null) < // Slow: Inquiry cli.DiscoverDevices(255, false, false, true, false); SimpleCheckDevice(devices, ref foundDev); >// if (foundDev != null) < return 0; >else < return 1; >> private static void SimpleCheckDevice(IEnumerable devices, ref BluetoothDeviceInfo foundDev) < foreach (var cur in devices) < if (cur.DeviceAddress == _searchAddress) < foundDev = cur; PrintDevice(cur); >>//for > private static void PrintDevice(BluetoothDeviceInfo cur) < Console.WriteLine("* Found device: '' ", cur.DeviceName); if (infoRatherThanName) < try < var vs = cur.GetVersions(); Console.WriteLine(vs.Manufacturer); Console.WriteLine(vs.LmpVersion); Console.WriteLine(vs.LmpSubversion); Console.WriteLine(vs.LmpSupportedFeatures); >catch (Exception ex) < Console.WriteLine("Failed to get remote device versions info: " + ex.Message); >> > //---- private static bool GetCanConnectTo(BluetoothDeviceInfo device) < bool inRange; Guid fakeUuid = new Guid(""); try < ServiceRecord[] records = device.GetServiceRecords(fakeUuid); Debug.Assert(records.Length == 0, "Why are we getting any records?? len: " + records.Length); inRange = true; >catch (SocketException) < inRange = false; >return inRange; > > > cannot connect iphone 7 by bluetooth with ipad series 8
Ok, thanks. It is more clear to me. Btw when i try to connect them by bluetooth and i do the way you discri2bed, it fails. I was thinking the bluetooth version of the iphone7 is 3.0 or so and that cause the problem. And i can connect my samsung m20 and my laptop with the ipad. So it’s weird the iphone cannot. The iphone connect also to the laptop and the samsung.
But after your repley it’s clear for.
Thanks for taking your time to explain me.
Merry Christmas, Franciscus
Posted on Dec 24, 2020 5:18 AM
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Correct, as there is no supported Bluetooth protocol to do so. What are you hoping to accomplish? There is usually an easier method.
What, specifically, are you attempting to achieve by pairing an iPhone and iPad over a Bluetooth connection?
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