Public bug reported:
Adaptador: Mercusys MA530 (Bluetooth 5.4 Nano USB), chip Realtek RTL8761BUV
USB ID: 2c4e:0115
El driver btusb lo reclama por coincidencia genérica de clase pero no carga el
firmware Realtek porque el ID no está en la tabla de quirks
Ya armae un módulo DKMS parchado que soluciona el problema.
Es un bug de Ubuntu específicamente, porque el parche que usamos ya
existe en el kernel upstream (lo encontré cuando investigamos esto al
principio — hay un parche enviado a la lista de Bluetooth de Linux en
2025 agregando justo el ID 2c4e:0115), pero evidentemente no llegó al
kernel 7.0.0-31 que trae Ubuntu 26.04.
ProblemType: Bug
DistroRelease: Ubuntu 26.04
Package: linux-image-7.0.0-31-generic 7.0.0-31.31
ProcVersionSignature: Ubuntu 7.0.0-31.31-generic 7.0.14
Uname: Linux 7.0.0-31-generic x86_64
ApportVersion: 2.34.1-0ubuntu0.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: viobed 2583 F.... wireplumber
/dev/snd/seq: viobed 2563 F.... pipewire
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Sat Sep 19 13:06:33 2026
InstallationDate: Installed on 2026-09-11 (8 days ago)
InstallationMedia: Ubuntu 26.04.1 LTS "Resolute Raccoon" - Release amd64
(20260826)
Lsusb:
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 003: ID 046d:c534 Logitech, Inc. Nano Receiver
Bus 001 Device 004: ID 2c4e:0115 Mercucys INC MERCUSYS Bluetooth Adapter
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 002 Device 002: ID 2357:012d TP-Link Archer T3U [Realtek RTL8812BU]
MachineType: LENOVO 10YM00A8AC
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-7.0.0-31-generic
root=UUID=08da8b3d-0967-40d8-8974-fc6e695771b2 ro quiet splash
crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/15/2024
dmi.bios.release: 0.44
dmi.bios.vendor: LENOVO
dmi.bios.version: M28KT44A
dmi.board.name: 3144
dmi.board.vendor: LENOVO
dmi.board.version: Not Defined
dmi.chassis.type: 35
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.ec.firmware.release: 0.5
dmi.modalias:
dmi:bvnLENOVO:bvrM28KT44A:bd04/15/2024:br0.44:efr0.5:svnLENOVO:pn10YM00A8AC:pvrThinkCentreM630e:rvnLENOVO:rn3144:rvrNotDefined:cvnLENOVO:ct35:cvrNone:skuLENOVO_MT_10YM_BU_Think_FM_ThinkCentreM630e:pfaThinkCentreM630e:
dmi.product.family: ThinkCentre M630e
dmi.product.name: 10YM00A8AC
dmi.product.sku: LENOVO_MT_10YM_BU_Think_FM_ThinkCentre M630e
dmi.product.version: ThinkCentre M630e
dmi.sys.vendor: LENOVO
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug resolute wayland-session
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/2167769
Title:
Adaptador: Mercusys MA530 (Bluetooth 5.4 Nano USB), chip Realtek
RTL8761BUV
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2167769/+subscriptions
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
