2 Replies Latest reply on May 23, 2016 12:47 PM by Intel Corporation

    Bluetooth connection to HID device (mouse) gone after a while (8260 AC) under linux

    drindt

      Dear forum members,

       

      in my Dell XPS 13 Developer Edition is built in a networking card:

      3a:00.0 Network controller: Intel Corporation Wireless 8260 (rev 3a)

       

      To let the wifi properly work i downloaded manually the firmware files:

      -rw-r--r--. 1 root root 1745176  4. Feb 12:23 /lib/firmware/iwlwifi-8000C-13.ucode

      -rw-r--r--. 1 root root 2351636  4. Feb 12:23 /lib/firmware/iwlwifi-8000C-16.ucode

      -rw-rw-r--. 1 root root 2390004 14. Mai 21:45 /lib/firmware/iwlwifi-8000C-17.ucode

      -rw-rw-r--. 1 root root 2381764 14. Mai 21:45 /lib/firmware/iwlwifi-8000C-18.ucode

      -rw-rw-r--. 1 root root 2383144 14. Mai 21:45 /lib/firmware/iwlwifi-8000C-19.ucode

      -rw-rw-r--. 1 root root 2383328 14. Mai 21:45 /lib/firmware/iwlwifi-8000C-20.ucode

      -rw-rw-r--. 1 root root 2394060 14. Mai 21:43 /lib/firmware/iwlwifi-8000C-21.ucode

       

      I will describe my issue more detailed. I enable my bluetooth in gnome 3.18.2 which properly shows bt devices in range.

      I let pair the device successfully and the mouse is working as expected. Then after a while a couple of minutes less than

      10 and both stuck, the mouse never moves anymore the wifi has 100% packet loss. This can just solved by turning off and

      turning on again, so i can at least say i tried this common scenario.

      I've attached the dmesg output which contains all messages around the issues.

       

      It would be great to solve this problem. I also will provide all necessary information to help solving this.

       

      Thank you very much

      Daniel

        • 1. Re: Bluetooth connection to HID device (mouse) gone after a while (8260 AC) under linux
          Intel Corporation
          This message was posted on behalf of Intel Corporation

          Hello drindt,

          Based on your description, there may be an issue with the coexistence of Bluetooth and WiFi in your system, or this may be caused by the driver. Your OS uses Linux Kernel 4.5.4, so it should support the adapter, even more if you have updated the firmware already.

          We would like to let you know that the Linux drivers are part of the upstream Linux kernel and are available through the distributions, or The Linux* Kernel Archives.

          Driver development is done in the open source Linux community and this type of issues are better handled through the support for your Linux distribution, or the mailing lists found at the Linux Community page - iwlwifi. I would like to mention that this page actually mentions WiFi / Bluetooth coexistence issues in Linux:

          "Having and WiFi running at the same time is a challenge. These scenarios have been tested thoroughly on 7260 and up, less so on earlier devices. This is why some people may face issues with devices that are handled by iwldvm. For users of these devices who have problems when WiFi and Bluetooth are running concurrently, we suggest to disable BT Coex by loading iwlwifi with bt_coex_active=0 as a module parameter."

          We advise you to check the links provided, and engage the Linux resources found there for additional details.

          You may also contact the Computer Manufacturer Support for assistance regarding the Dell XPS 13 Developer Edition.
          JB

          • 2. Re: Bluetooth connection to HID device (mouse) gone after a while (8260 AC) under linux
            Intel Corporation
            This message was posted on behalf of Intel Corporation

            We hope this information was helpful, please let us know if you require any additional details about this.