Hi Ian. I've had my m6700 since 2012 and have never been able to use any Bluetooth headset.
Any chance you can provide pointers on what incantations one needs to call upon to get this fixed like you've done on your laptop? Cheers, Anthony. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1924741 Title: Load Broadcom firmware for Dell Bluetooth device [413c:8197] Status in linux package in Ubuntu: Confirmed Bug description: The Broadcom Bluetooth kernel module supports loading patches for specific hardware devices. Which devices require patchram support is defined in an array of structs in the kernel module `btusb`, which allow matching by Vendor ID and, optionally, Product ID. The Dell-branded device `413c:8197` requires the patch `BCM20702A1-413c-8197.hcd`[1] to be loaded in order for HSP/HFP functionality to work (A2DP and AVRCP work without the patch). However, the patch is not sought for this device by `btusb`. In 2011, `413c:8197` was included in the module[2], but not marked as requiring patchram. Later, in 2017, a blanket entry was added for all Dell-branded (`413c`) devices[3], marking them as requiring patchram. However, the previous entry for `413c:8197` was not removed and appears to block the patchram requirement from being added for this device (presumably the algorithm stops searching after the first match). The code stands like so: ``` static const struct usb_device_id btusb_table[] = { ... /* Broadcom BCM20702A0 */ { USB_DEVICE(0x413c, 0x8197) }, ... /* Dell Computer - Broadcom based */ { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01), .driver_info = BTUSB_BCM_PATCHRAM }, ``` I would like to request removal of the earlier entry to facilitate patchram support for device `413c:8197`. I have tested this as working on my Dell Precision M6700 running Ubuntu 20.04 with kernel `5.4.0-71-generic`. [1]: https://github.com/winterheart/broadcom-bt-firmware/blob/master/brcm/BCM20702A1-413c-8197.hcd [2]: https://github.com/torvalds/linux/commit/d13431ca3eb2a2c14314f04813cdc11cd869f150 [3]: https://github.com/torvalds/linux/commit/fdfddc601713d4ed564b0bd25b29415bd622020a To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1924741/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
