*** This bug is a duplicate of bug 1871794 *** https://bugs.launchpad.net/bugs/1871794
Hi all, It works for me on Asus Vivobook after have applied firmware linux- firmware_1.183.2_all.deb on Ubuntu 20 on kernel 5.4.0-42-generic . Don't know how. dmesg | grep firmware [ 0.139854] Spectre V2 : Enabling Restricted Speculation for firmware calls [ 3.107460] iwlwifi 0000:01:00.0: Direct firmware load for iwlwifi-cc-a0-50.ucode failed with error -2 [ 3.107485] iwlwifi 0000:01:00.0: Direct firmware load for iwlwifi-cc-a0-49.ucode failed with error -2 [ 3.112097] iwlwifi 0000:01:00.0: loaded firmware version 48.4fa0041f.0 op_mode iwlmvm [ 3.188788] [drm] Finished loading DMC firmware i915/kbl_dmc_ver1_04.bin (v1.4) [ 3.193324] Bluetooth: hci0: Minimum firmware build 1 week 10 2014 [ 3.195221] Bluetooth: hci0: Found device firmware: intel/ibt-20-1-3.sfi [ 3.197148] iwlwifi 0000:01:00.0: Allocated 0x00400000 bytes for firmware monitor. [ 4.801750] Bluetooth: hci0: Waiting for firmware download to complete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1878194 Title: [Sennheiser HD 4.50 BTNC] Bluetooth headset not working when selecting HSP/HFP audio profile in Focal Fossa To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bluez/+bug/1878194/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs