Just following this up. Is there anything I can do to help fix this? Running a custom kernel is a real pain. I've been running with the commit revert and upgrading with Arch Linux kernel releases with no issue. Thanks, Pete. On Mon, 30 May 2022 at 12:44, Peter Sutton <peter@xxxxxxxxxxxxxxxxx> wrote: > > Commit b7ce436a5d798bc59e71797952566608a4b4626b is the probable cause. > I compiled a custom Arch Linux kernel package [1] and the bug was > present. Reverting the commit fixed the bug. Below is the reply I was > writing before Matt found the suspect commit and I tested with the > custom kernel. > > > What hardware is that? > > $ dmesg | grep iwlwifi > Me: Intel(R) Dual Band Wireless AC 8260, REV=0x204 > Matt: Intel(R) Dual Band Wireless AC 8265, REV=0x230 > > We both get: > > $ lsusb | grep Bluetooth > Me & Matt: Bus 001 Device 006: ID 8087:0a2b Intel Corp. Bluetooth > wireless interface > > > As a lot of patches are also applied to the stable series, do you know, > > if this is a regression? Does it work with Linux 5.15(.0) or 5.10? > > Bug is present on current Arch Linux LTS kernel: > > $ uname -a > Linux taffer 5.15.43-1-lts #1 SMP Wed, 25 May 2022 14:08:34 +0000 > x86_64 GNU/Linux > > Matt tested on 5.10.115 and the bug is not present. So I guess it's a > regression. Anecdotally, we encountered this behaviour 1 yr ago > (difficult to say exactly), then it went away but came back about 1 or > 2 months ago. All of this is on Arch Linux, I update about once a > week. > > [1] https://wiki.archlinux.org/title/Kernel/Arch_Build_System