Hi Luiz, On Wed, 2024-10-16 at 15:08 -0400, Luiz Augusto von Dentz wrote: > > External email : Please do not click links or open attachments until > you have verified the sender or the content. > Hi Chris, > > On Wed, Oct 16, 2024 at 2:51 PM Luiz Augusto von Dentz > <luiz.dentz@xxxxxxxxx> wrote: > > > > Hi Grimoire, > > > > On Wed, Oct 16, 2024 at 3:28 AM Grimoire April < > aprilgrimoire@xxxxxxxxx> wrote: > > > > > > Hi. I have a laptop with an integrated bluetooth adaptor > recognized as > > > a usb device. However, it fails to initialize properly. Searching > for > > > other instances on bugzilla, it seems others had success with > > > 13d3:3585 adaptors. > > > > > > (base) ➜ ~ sudo dmesg | grep Bluetooth > > > [ 0.422244] Bluetooth: Core ver 2.22 > > > [ 0.422254] Bluetooth: HCI device and connection manager > initialized > > > [ 0.422257] Bluetooth: HCI socket layer initialized > > > [ 0.422261] Bluetooth: L2CAP socket layer initialized > > > [ 0.422265] Bluetooth: SCO socket layer initialized > > > [ 0.530052] Bluetooth: HCI UART driver ver 2.3 > > > [ 0.535346] Bluetooth: HIDP (Human Interface Emulation) ver > 1.2 > > > [ 0.535355] Bluetooth: HIDP socket layer initialized > > > [ 3.556068] Bluetooth: hci0: Opcode 0x0c03 failed: -110 > > > > > > https://bugzilla.kernel.org/show_bug.cgi?id=218472 > > > > > > I updated to 6.11.1 and the issue persists. > > > > Well it looks like the reset command is timing out, but the issue > was > > originally the PID:VID was not supported in btusb so perhaps > something > > else is happening, perhaps another manufacturer that don't support > > short-transfer which was introduced by 7b05933340f4 ("Bluetooth: > > btusb: Fix not handling ZPL/short-transfer") so try reverting that > to > > see if it helps. > > Seems this appears to be a Mediatek chip are you guys able to verify > the above change doesn't break with your controllers? > I've applied this change manually on ChromeOS(kernel v6.6) and Ubuntu PC(kernel v6.11) today. MT7921 Bluetooth is able to work on both platforms. I think this change is fine to MediaTek's bluetooth solution. The bugzilla issue above was already been resolved in the latest kernel by adding PID/VID. Do you have other logs if MediaTek's bluetooth is still not able to bring up? > > > > > Thank you. > > > > > > > > > -- > > Luiz Augusto von Dentz > > > Thank you. Chris Lu
