Hi Maxim, On Thu, Feb 24, 2022 at 8:29 AM Maxim Levitsky <mlevitsk@xxxxxxxxxx> wrote: > > On Thu, 2022-02-24 at 16:43 +0100, Paul Menzel wrote: > > Dear Maxim, > > > > > > Am 24.02.22 um 14:01 schrieb Maxim Levitsky: > > > On Tue, 2022-02-22 at 10:35 -0800, Luiz Augusto von Dentz wrote: > > > > On Mon, Feb 21, 2022 at 7:14 PM Maxim Levitsky wrote: > > > > > Today I updated to a new kernel and I am bisecting few > > > > > regressions: > > > > […] > > > > > I do notice that even on 5.16 kernel, I am not able to use the HSF > > > or whatever low quality bi-directional bluetooh protocol is called > > > for my headset. Used to work, I don't know what broke it, likely not > > > related to this. > > > > > > I also updated bluez to 5.6 by installing fedora 33 package, and > > > initially it seems to work, but after reboot, the issue shows up > > > again. Looks like sometimes the scan does work. So far I wasn't able > > > to make it work even once since then. Reloading btusb doesn't help. > > > Can't install newer package due to deps on glib sadly. I might be > > > able to compile it from source, but that will take some time to > > > figure out how the components of the bluez stack are connected > > > together. > > > > > > For the reference I have 'Intel Corp. AX200 Bluetooth' and I have > > > the same device on my AMD laptop and both have USB ID 8087:0029 My > > > AMD laptop has Fedora 34 though. > > > > Sorry, I lost track, if it’s still about one regression, you > > successfully bisected or not. > yes, I sucessfully bisected the regression. 1 commit before mentioned commit > the bluetooth works for me, and not after it, with same .config and everything else. > > > > > > Anyway, passing through the USB Bluetooth device to QEMU helped me [1], > > and might help you to overcome the dependency problems. (My steps > > actually worked, but turned out the Linux kernel commit I tested with > > had another regression not making the Bluetooth controller initialize.) > First thing I tried, but alas it worked for me in fedora 34 VM I tried to test with > (with the same 5.17-rc5 kernel, albeet with different .config, more tailored for a VM). Give it a try with: https://patchwork.kernel.org/project/bluetooth/patch/20220224232950.56204-1-brian.gix@xxxxxxxxx/ Btw, are there any other users of the MGMT socket? Or it is just bluetoothd? > Best regards, > Maxim Levitsky > > > > > Marcel also replied, he is using btproxy to debug issues, but I did not > > try it, as it wasn’t clear to me how to get it working easily, and he > > also wrote something about non-public patches. > > > > > > Kind regards, > > > > Paul > > > > > > [1]: > > https://lore.kernel.org/linux-bluetooth/5891f0d5-8d51-9da5-7663-718f301490b1@xxxxxxxxxxxxx/T/#u > > > > -- Luiz Augusto von Dentz
