On 11.10.2024 18:36, Luiz Augusto von Dentz wrote: > Hi Heiner, > > On Fri, Oct 11, 2024 at 6:49 AM Heiner Kallweit <hkallweit1@xxxxxxxxx> wrote: >> >> Since linux-next from Oct 4th my bt speaker fails to connect if I switch it on. >> It just hangs trying. Manually connecting it via bluetoothctl works though. >> With this patch reverted it auto-connects again. >> If you need additional details, please let me know. > > I suspect something is trying to suspend the controller then, it > shouldn't be USB auto-suspend since that should behave as it > previously but if there is something externally (aka. userspace) > trying to suspend then it will force it to suspend. > On the host side it's a combined WiFi/BT PCIe adapter (RTL8822CE). Runtime PM is enabled, so this may kick in. I'm not aware of any userspace tool which may try to suspend the WiFi/BT adapter. Disabling Runtime PM may be a workaround, but I don't think that's the actual solution.