Please enable Mediatek bluetooth protocol in the distribution kernel to support newer Lenovo Legion 5 Pro (and most probably 7) laptops. This is the only hardware in that laptop not supported with current kernels. Reproducible: Always Steps to Reproduce: 1. Emerge nstall gentoo-kernel or gentoo-kernel-bin and boot it. 2. Inspect dmesg to see if bluetooth is initaliazed or use hciconfig -a command 3. Actual Results: Bluetooth is not initialized: 1. It's missing from dmesg log 2. hciconfig -a doesn't show an actual device Expected Results: Bluetooth is initialized: 1. You can see it in the dmesg logs, usually at the very end of boot process 2. hciconfig shows an actual device It may be a good idea to enable bluetooth high speed features as well. [*] Networking support ---> <M> Bluetooth subsystem support ---> .... [*] Bluetooth High Speed (HS) features .... Bluetooth device drivers ---> <M> HCI USB driver ... [*] MediaTek protocol support
Please provide a link to the sources. Are they already part of the kernel? Which exact module will work? (see lspci -k) So far I just found this link: https://wireless.wiki.kernel.org/en/users/drivers/mediatek
Created attachment 753922 [details, diff] patch to enable mtk bluetooth in kernel config I apologize for not providing enough details. It's about the current testing distribution kernels: sys-kernel/gentoo-kernel sys-kernel/gentoo-kernel-bin version 5.15.1. Sources are in the kernel already, the drivers just need to be enabled. I'm attaching a patch for the kernel config file. Regards, Georgi
Are you sure that CONFIG_BT_HS is required? Fedora seems to enable the other two only: commit 2edca076e88a261fe0a1a152549dbc51c7f071a6 Author: Justin M. Forbes <jforbes@fedoraproject.org> Date: 2021-11-15 17:00:15 +0100 kernel-5.16-0.rc0.20211113git66f4beaa6c1d.12 * Sat Nov 13 2021 Fedora Kernel Team <kernel-team@fedoraproject.org> [5.16-0.rc0.20211113git66f4beaa6c1d.12] - Turn on CONFIG_HID_NINTENDO for controller support (Dave Olsthoorn) - Fedora: Enable MediaTek bluetooth pieces (Peter Robinson) Resolves: rhbz# Signed-off-by: Justin M. Forbes <jforbes@fedoraproject.org> diff --git a/kernel-x86_64-fedora.config b/kernel-x86_64-fedora.config index 26ad823f5..6b770bb4f 100644 --- a/kernel-x86_64-fedora.config +++ b/kernel-x86_64-fedora.config @@ -696,7 +696,7 @@ CONFIG_BT_HCIBTSDIO=m CONFIG_BT_HCIBTUSB_AUTOSUSPEND=y CONFIG_BT_HCIBTUSB_BCM=y CONFIG_BT_HCIBTUSB=m -# CONFIG_BT_HCIBTUSB_MTK is not set +CONFIG_BT_HCIBTUSB_MTK=y CONFIG_BT_HCIBTUSB_RTL=y CONFIG_BT_HCIDTL1=m CONFIG_BT_HCIUART_3WIRE=y @@ -723,7 +723,7 @@ CONFIG_BT_MRVL=m CONFIG_BT_MRVL_SDIO=m CONFIG_BT_MSFTEXT=y CONFIG_BT_MTKSDIO=m -# CONFIG_BT_MTKUART is not set +CONFIG_BT_MTKUART=m CONFIG_BT_QCA=m CONFIG_BT_RFCOMM=m CONFIG_BT_RFCOMM_TTY=y [...]
Tested on 5.15.1 with HS features disabled, bluetooth headset and Android devices connect and work without problems. Regards, Georgi
Thanks!
