Bluetooth broken in 6.17.0-14 kernel?

Anyone else than me that have experienced that kernel 6.17.0-14-generic broke bluetooth?
I can’t get it back without switching back to 6.14.0-37-generic kernel, but then my second monitor doesn’t work (which have always worked).
I am on 24.04.3 LTS

Can you install inxi and provide results from terminal for inxi -Fxxxz from both kernels?

You’re definitely not alone. This looks like a kernel regression in the newer HWE kernel on 24.04.3 LTS.

What you’re seeing makes sense:

6.17.0-14-generic → Bluetooth broken, second monitor works

6.14.0-37-generic → Bluetooth works, second monitor broken

That usually means two different subsystems regressed/improved between kernels (Bluetooth vs graphics). This is fairly common with HWE kernels on LTS releases.

In my case (and for others), Bluetooth often breaks in 6.16+/6.17 kernels due to btusb driver changes or USB power-management issues, especially on Intel/Realtek Bluetooth adapters.

Things that helped without downgrading the kernel:

Reinstalling linux-firmware

Reloading the Bluetooth module (btusb)

Disabling USB autosuspend for Bluetooth (this fixes it for many people)

Example fix that worked for some:

echo 'options btusb enable_autosuspend=0' | sudo tee /etc/modprobe.d/btusb.conf
sudo update-initramfs -u
reboot

If that doesn’t help, a good workaround is installing the OEM kernel for 24.04, which often avoids these regressions and keeps both Bluetooth and external monitors working:

sudo apt install linux-oem-24.04

Locking the older 6.14 kernel also works short-term, but it’s not ideal long-term due to security updates.

So yes — this is very likely a known regression, not hardware failure or misconfiguration. Hopefully, it gets fixed in an upcoming kernel update.

1 Like

@ram47 Thank you, seems to work :grin:

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