Hi, this is your Linux kernel regression tracker speaking. I noticed a regression report in bugzilla.kernel.org. As many (most?) kernel developer don't keep an eye on it, I decided to forward it by mail. Quoting from https://bugzilla.kernel.org/show_bug.cgi?id=216817 : > Andrew M 2022-12-18 04:28:43 UTC > > The internal USB Bluetooth device in my laptop no longer works since v6.0 > > Device in question: > ID 0489:e0d0 Foxconn / Hon Hai > > Works fine in 5.19.x and fails after 6.0 > I ran a bisect that resulted in it breaking after this commit: > 26afbd826ee326e63a334c37fd45e82e50a615ec Bluetooth: Add initial implementation of CIS connections > > System: Lenovo ThinkPad T14 (AMD) Gen 2 > > dmesg output: > > [ 0.978396] usb 5-4: new full-speed USB device number 2 using xhci_hcd > [ 1.142461] usb 5-4: New USB device found, idVendor=0489, idProduct=e0d0, bcdDevice= 0.01 > [ 1.142467] usb 5-4: New USB device strings: Mfr=0, Product=0, SerialNumber=0 > [ 4.591285] Bluetooth: Core ver 2.22 > [ 4.591304] Bluetooth: HCI device and connection manager initialized > [ 4.591308] Bluetooth: HCI socket layer initialized > [ 4.591309] Bluetooth: L2CAP socket layer initialized > [ 4.591315] Bluetooth: SCO socket layer initialized > [ 4.871972] usbcore: registered new interface driver btusb > [ 4.883484] Bluetooth: hci0: HCI Enhanced Setup Synchronous Connection command is advertised, but not supported. > [ 4.973465] Bluetooth: BNEP (Ethernet Emulation) ver 1.3 > [ 4.973468] Bluetooth: BNEP filters: protocol multicast > [ 4.973472] Bluetooth: BNEP socket layer initialized > [ 4.975525] Bluetooth: hci0: unexpected cc 0x2060 length: 1 < 7 > [ 4.975537] Bluetooth: hci0: Opcode 0x2060 failed: -38 > [ 6.985714] Bluetooth: hci0: command tx timeout > > Attached is output of lsusb -v -d 0489:e0d0 See the ticket for more details. BTW, let me use this mail to also add the report to the list of tracked regressions to ensure it's doesn't fall through the cracks: #regzbot introduced: 26afbd826ee3 https://bugzilla.kernel.org/show_bug.cgi?id=216817 #regzbot ignore-activity Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat) P.S.: As the Linux kernel's regression tracker I deal with a lot of reports and sometimes miss something important when writing mails like this. If that's the case here, don't hesitate to tell me in a public reply, it's in everyone's interest to set the public record straight.
