Page 2 of 2 FirstFirst 12
Results 11 to 20 of 20

Thread: Choppy Bluetooth with Plasma Applet in Leap 15.3

  1. #11

    Default Re: Choppy Bluetooth with Plasma Applet in Leap 15.3

    Quote Originally Posted by marel View Post
    Thanks for reporting back.

    My conclusion is that the problem is interference, this article is for WiFi, but the same holds for Bluetooth.

    Can you tell what is your setup? Are you using a laptop with build in Bluetooth or are you using a Desktop with a Bluetooth dongle or ...?

    If you are using a Bluetooth dongle, I can recommend to get a 2 meter USB extension cable and place the Bluetooth dongle 2 meter from the computer. Test the Bluetooth quality and if still not good, try some other places. If that does not work, try, for a test to disable all WiFi and check if then the problem is gone.
    Thanks.

    It's a little Zotak Zbox i5 with onboard intel Bluetooth, antenna is located at the front side of plastic casing. All Wi-Fi (incl. router, zbox and nearby computers) is always disabled. But I do have a 2.4GHz Logitech Mouse (yes, I use a good (shielded) extension cable for the mouse dongle).
    As I have written, Windows works near perfect from the same box. Still thinking, that it is an interference? M.o. - no, it's a software problem.

    Vadim.

  2. #12

    Default Re: Choppy Bluetooth with Plasma Applet in Leap 15.3

    I have eliminated the Logitech Wireless Mouse - you are partially right, it's definitely better without it. It was a last 2,4GHz source in the surrounding. But Windows was not so sensitive to the Logitech...

    Thanks,
    Vadim.

  3. #13

    Default Re: Choppy Bluetooth with Plasma Applet in Leap 15.3

    Possibly you need to disable USB3, or don't use it.

  4. #14
    Join Date
    Oct 2014
    Location
    Rotterdam
    Posts
    531

    Default Re: Choppy Bluetooth with Plasma Applet in Leap 15.3

    Yes, USB-3 can cause also quite some interference.

    To check more things, can you try "pacmd list sinks" with the and share the output Bluetooth Headphones connected and playing music and share the output for the "sink" that has the headphone connected? For me that looks like:

    Code:
    Sink #4 
            State: RUNNING 
            Name: bluez_sink.00_1E_7C_8D_92_3F.a2dp_sink 
            Description: Philips SHB9000 
            Driver: module-bluez5-device.c 
            Sample Specification: s16le 2ch 44100Hz 
            Channel Map: front-left,front-right 
            Owner Module: 29 
            Mute: no 
            Volume: front-left: 18350 /  28% / -33.17 dB,   front-right: 18350 /  28% / -33.17 dB 
                    balance 0.00 
            Base Volume: 65536 / 100% / 0.00 dB 
            Monitor Source: bluez_sink.00_1E_7C_7C_8D_92_3F.a2dp_sink.monitor 
            Latency: 62697 usec, configured 51122 usec 
            Flags: HARDWARE DECIBEL_VOLUME LATENCY  
            Properties: 
                    bluetooth.protocol = "a2dp_sink" 
                    device.description = "Philips SHB9000" 
                    device.string = "00:1E:7C:7C:8D:92:3F" 
                    device.api = "bluez" 
                    device.class = "sound" 
                    device.bus = "bluetooth" 
                    device.form_factor = "headset" 
                    bluez.path = "/org/bluez/hci0/dev_00_1E_7C_7C_8D_92_3F" 
                    bluez.class = "0x240404" 
                    bluez.alias = "Philips SHB9000" 
                    device.icon_name = "audio-headset-bluetooth" 
                    device.intended_roles = "phone" 
            Ports: 
                    headset-output: Headset (type: Headset, priority: 0, available) 
            Active Port: headset-output 
            Formats: 
                    pcm
    With that information (the name) you can also try to increase the latency using:

    pactl set-port-latency-offset <bluez_card> headset-output 100000

    This will allow more buffer to combat the interference but has as drawback it increases the latency so if you are watching video the audio can be delayed. In that case try a lower value until you find a good compromise.

    The other option is of course to buy a BT USB stick and connect that with a cable so it is physically separated from the Zotac Zbox.

  5. #15

    Default Re: Choppy Bluetooth with Plasma Applet in Leap 15.3

    Hi.
    Is that what you needed?

    Code:
     * index: 1
            name: <bluez_sink.00_1B_66_E8_8C_43.a2dp_sink>
            driver: <module-bluez5-device.c>
            flags: HARDWARE DECIBEL_VOLUME LATENCY 
            state: RUNNING
            suspend cause: (none)
            priority: 9050
            volume: front-left: 65536 / 100% / 0.00 dB,   front-right: 65536 / 100% / 0.00 dB
                    balance 0.00
            base volume: 65536 / 100% / 0.00 dB
            volume steps: 65537
            muted: no
            current latency: 86.35 ms
            max request: 5 KiB
            max rewind: 0 KiB
            monitor source: 1
            sample spec: s16le 2ch 44100Hz
            channel map: front-left,front-right
                         Stereo
            used by: 1
            linked by: 1
            fixed latency: 56.93 ms
            card: 1 <bluez_card.00_1B_66_E8_8C_43>
            module: 28
            properties:
                    bluetooth.protocol = "a2dp_sink"
                    device.description = "PXC 550-II"
                    device.string = "00:1B:66:E8:8C:43"
                    device.api = "bluez"
                    device.class = "sound"
                    device.bus = "bluetooth"
                    device.form_factor = "headset"
                    bluez.path = "/org/bluez/hci0/dev_00_1B_66_E8_8C_43"
                    bluez.class = "0x240404"
                    bluez.alias = "PXC 550-II"
                    device.icon_name = "audio-headset-bluetooth"
                    device.intended_roles = "phone"
            ports:
                    headset-output: Headset (priority 0, latency offset 0 usec, available: yes)
                            properties:
    
            active port: <headset-output>
    I have 2 of USB Bluetooth dongles (V. 4.0 and 5.0), but none of them works with Linux.

    Thanks, Vadim.

  6. #16
    Join Date
    Oct 2014
    Location
    Rotterdam
    Posts
    531

    Default Re: Choppy Bluetooth with Plasma Applet in Leap 15.3

    Did compare your "pacmd list sinks" output with mine and see no big differences apart from the formatting. That is likely because I am on Tumbleweed and you are on Leap 15.3.
    Also your volume seems to be set to 100%, mine not ;-)

    Did you try the trick of increasing the latency offset?

    I have 2 of USB Bluetooth dongles (V. 4.0 and 5.0), but none of them works with Linux.
    If you want to get the working (they work under Windows I assume) I suggest starting another thread starting with the output of dmesg --follow after inserting the dongle.

  7. #17

    Default Re: Choppy Bluetooth with Plasma Applet in Leap 15.3

    Quote Originally Posted by marel View Post
    Did you try the trick of increasing the latency offset?

    If you want to get the working (they work under Windows I assume) I suggest starting another thread starting with the output of dmesg --follow after inserting the dongle.
    Thanks.
    I will try to start a new thread.

    I have also installed the latest versions of Bluez and have installed the Pulseaudio-module-bt (that has AptX), but no luck.

    Vadim.

  8. #18

    Default Re: Choppy Bluetooth with Plasma Applet in Leap 15.3

    Interesting, it works perfect with an old CSR Bluetooth 4.0 USB Dongle at short distance (I have a USB 3 hub, with relative long wire, which is on the table near me).

    It's

    Code:
    ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode)
    also.

    Vadim.

  9. #19
    Join Date
    Oct 2014
    Location
    Rotterdam
    Posts
    531

    Default Re: Choppy Bluetooth with Plasma Applet in Leap 15.3

    That is a good finding.

    You can do some more experimenting to find out if it is due to the location or due to the older hardware.

    If it is the older hardware, that is not really a surprise, Linux typically supports somewhat older hardware better then very new hardware.

  10. #20

    Default Re: Choppy Bluetooth with Plasma Applet in Leap 15.3

    Check your USB hardware without hubs - they can introduce errors.
    USB 3 limits cable length for ~ 3m, bad cables can shorten it.

Page 2 of 2 FirstFirst 12

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •