$ make -C /lib/modules/$(uname -r)/build M=$PWD modules But it failed to login, so I've purged it and returned to my 5.3.0-29-generic kernel. etc/modprobe.d/nf, and add hci_usb reset=1 to Might need same fix as Belkin : add blacklist hci_usb to $ hciconfig -a hci0 Manufacturer: Cambridge Silicon Radio (10) $ lsusb Bus 007 Device 003: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode) Works out-of-the-box in Ubuntu v10.04 ~ 11.04 but stopped working reliably in 11.10, frequent kernel panics and other TX bytes:736 acl:0 sco:0 commands:60 errors:0Ĭan't init device hci0: Operation not supported (95) RX bytes:1106 acl:0 sco:0 events:56 errors:0 $ lsusb | grep toothīus 002 Device 003: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode)īD Address: 33:03:30:09:74:B4 ACL MTU: 360:4 SCO MTU: 0:0 I hope this helps others who are suffering the same frustrations.My Bluetooth adapter does not work in Ubuntu. Again, sorry this is only a partial solution, but I think if the power saving issue can be fixed, and you get the same success as me from downloading a missing/outdated firmware from GitHub for your chipset, then this could be a fix. I have read elsewhere that if you disable the Bluetooth power saving that will stop the timeouts and prevent the lock-up, so if someone knows how to do that we may have a complete solution. I could now pair the keyboard and mouse and no error messages about the firmware in DMESG, but the devices only work for about 10 minutes before I get timeout messages in DMESG from the devices, and eventually the Bluetooth locks up completely and needs a reboot. I went to the GitHub page for Broadcom, and there was an updated firmware there (handily in a Deb package file) that I downloaded, and it worked! You just need to copy the firmware file for your particular device/chipset into the /lib/firmware folder (mine was a folder within that firmware folder) and reboot. My dongle manufacturer (Plugable) had a download for the missing firmware file, so I tried that and still nothing. I have tried everything that had been posted about work-arounds etc. Until yesterday, I had been using Ubuntu 18.04 LTS with a Plugable Broadcom-based Bluetooth dongle it was working perfectly until I installed 22.04 LTS today, and now I am getting major problems very much along the lines that other 22.04 users have reported as well as the OP here. I can provide more information if it is needed. Sudo hciconfig hci0 up: Can't init device hci0: Connection timed out (110) Sudo echo on > /sys/bus/usb/devices/2-1/power/control: bash: /sys/bus/usb/devices/2-1/power/control: Permission denied I also tried this, I don't know why but I don't have permissions: sys/bus/usb/devices/2-1/power/control:auto sys/bus/usb/devices/2-1.8/power/control:auto sys/bus/usb/devices/2-1.4/power/control:on sys/bus/usb/devices/2-1.2/power/control:on sys/bus/usb/devices/2-1.1/power/control:auto sys/bus/usb/devices/1-1/power/control:auto sys/bus/usb/devices/*/power/control: /sys/bus/usb/devices/1-1.5/power/control:auto Bluetooth: hci0: command 0x0c5a tx timeout Bluetooth: hci0: Opcode 0x c5a failed: -110 Bluetooth: BNEP socket layer initialized Bluetooth: BNEP filters: protocol multicast Bluetooth: BNEP (Ethernet Emulation) ver 1.3 Bluetooth: hci0: HCI Set Event Filter command not supported. Bluetooth: hci0: HCI Delete Stored Link Key command is advertised, but not supported. Bluetooth: hci0: CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround Bluetooth: hci0: CSR: Unbranded CSR clone detected adding workarounds and force-suspending once. Bluetooth: L2CAP socket layer initialized Bluetooth: HCI device and connection manager initialized NET: Registered PF_BLUETOOTH protocol family Sudo dmesg | grep -i bluetooth: Bluetooth: Core ver 2.22 Integrated Rate Matching Hubīus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Laptop_Integrated_Webcam_FHDīus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hubīus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hubīus 001 Device 003: ID 1bcf:2802 Sunplus Innovation Technology Inc. BCM5880 Secure Applications Processorīus 002 Device 005: ID 04f2:1125 Chicony Electronics Co., Ltd Asus Keyboardīus 002 Device 004: ID 0000:3825 USB OPTICAL MOUSEīus 002 Device 007: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode)īus 002 Device 002: ID 8087:0024 Intel Corp. Lsusb: Bus 002 Device 006: ID 0a5c:5800 Broadcom Corp. Here are some commands I run and their outputs: Yet, when I open Ubuntu (using dual-boot) it isn't working I tried answers on askUbuntu but nothing works. I've connected my Bluetooth dongle on Windows and it works fine on Windows.
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