https://bugzilla.kernel.org/show_bug.cgi?id=217475 --- Comment #2 from Alberto Garcia (berto@xxxxxxxxxx) --- I have always had this problem with this computer. Linux got support for this Bluetooth adapter in 5.14 if I'm not wrong (64832df2ac05) and I probably tried it for the first time with 5.15.3. I never saw it working fine, and I have tried lots of kernels and firmware versions since then. The most recent one was 6.3.3 as I mentioned in the bug report. Since I can make it work with a Windows VM using USB passthrough I assume that there's some problem with the initialization of the adapter, the HCI or something like that, but that's all I can guess with my limited knowledge of USB. To make it clear: when I talk about using a VM I'm talking about the scenario where 1) I cannot use Bluetooth in my Linux system because of one of the errors that I mentioned earlier ("hci0: Failed to get device id (-108)"). The device is not detected by the Bluetooth stack although it does appears in lsusb. 2) I launch a Windows VM using QEMU right away, without rebooting the computer or doing anything else. The BT adapter works in that VM always. 3) If I launch a Linux VM instead it tends to work, not always in this case but I have a higher success rate than if I remove and reload the btusb module on the host. -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.
