Public bug reported:
kernel 6.14.0-33 Ubuntu 24.04.3 LTS
I updated ubuntu today. After a restart that took very long the
bluetooth of my MT7925 is gone.
I read that this has been an issue in the past. For me it worked
flawlessly for more than half a year now.
System: AMD 7840HS (with mesa graphics), 48GB DDR5 5600, 512 GB PCIe-3 SSD
(Intel)
bluez 5.72-0ubuntu5.4
libbluetooth 5.72-0ubuntu5.4
gnome-bluetooth 46.0-1ubuntu1
I am not really a tech person. Please ask me for more information and
explain the steps on how to do it and the commands to put in. Thank you!
expectation: bluetooth working
what happened instead: bluetooth not working any more after reboot
more information and what I tried:
:~$ lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 2109:2817 VIA Labs, Inc. USB2.0 Hub
Bus 001 Device 005: ID 046d:085c Logitech, Inc. C922 Pro Stream Webcam
Bus 001 Device 008: ID 05e3:0610 Genesys Logic, Inc. Hub
Bus 001 Device 009: ID 1a40:0101 Terminus Technology Inc. Hub
Bus 001 Device 010: ID 04f9:0054 Brother Industries, Ltd HL-1110 series
Bus 001 Device 011: ID 06cb:1595 Synaptics, Inc. CX31993 384Khz HIFI AUDIO
Bus 001 Device 012: ID 32e4:0234 Global Shutter Camera Global Shutter Camera
Bus 001 Device 013: ID 1017:a003 Speedy Industrial Supplies, Pte., Ltd Skiller
SGK4
Bus 001 Device 014: ID 1e7d:2de6 ROCCAT ROCCAT Burst Core
Bus 001 Device 015: ID 05e3:0610 Genesys Logic, Inc. Hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 002 Device 002: ID 2109:0817 VIA Labs, Inc. USB3.0 Hub
Bus 002 Device 003: ID 174c:1153 ASMedia Technology Inc. ASM1153 SATA 3Gb/s
bridge
Bus 002 Device 004: ID 05e3:0626 Genesys Logic, Inc. Hub
Bus 002 Device 005: ID 05e3:0626 Genesys Logic, Inc. Hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 002: ID 214b:7250 Huasheng Electronics USB2.0 HUB
Bus 003 Device 003: ID 214b:7250 Huasheng Electronics USB2.0 HUB
Bus 003 Device 004: ID 1e7d:2de6 ROCCAT ROCCAT Burst Core
Bus 003 Device 005: ID 03eb:ff01 Atmel Corp. WootingOne
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 006 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 007 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 008 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
:~$ lspci
00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14e8
00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Device 14e9
00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14ea
00:01.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 14ed
00:01.3 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 14ee
00:02.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14ea
00:02.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 14ee
00:02.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 14ee
00:02.4 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 14ee
00:02.6 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 14ee
00:03.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14ea
00:04.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14ea
00:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14ea
00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 14eb
00:08.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 14eb
00:08.3 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 14eb
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 71)
00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 51)
00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14f0
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14f1
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14f2
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14f3
00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14f4
00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14f5
00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14f6
00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14f7
02:00.0 Ethernet controller: Intel Corporation Ethernet Controller I226-V (rev
04)
03:00.0 Ethernet controller: Intel Corporation Ethernet Controller I226-V (rev
04)
04:00.0 Network controller: MEDIATEK Corp. Device 7925
05:00.0 Non-Volatile memory controller: Intel Corporation SSD 660P Series (rev
03)
06:00.0 SATA controller: ASMedia Technology Inc. ASM1064 Serial ATA Controller
(rev 02)
07:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI]
Phoenix1 (rev c2)
07:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Rembrandt Radeon
High Definition Audio Controller
07:00.2 Encryption controller: Advanced Micro Devices, Inc. [AMD] Family 19h
(Model 74h) CCP/PSP 3.0 Device
07:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Device 15b9
07:00.4 USB controller: Advanced Micro Devices, Inc. [AMD] Device 15ba
07:00.5 Multimedia controller: Advanced Micro Devices, Inc. [AMD]
ACP/ACP3X/ACP6x Audio Coprocessor (rev 63)
07:00.6 Audio device: Advanced Micro Devices, Inc. [AMD] Family 17h/19h HD
Audio Controller
08:00.0 Non-Essential Instrumentation [1300]: Advanced Micro Devices, Inc.
[AMD] Device 14ec
08:00.1 Signal processing controller: Advanced Micro Devices, Inc. [AMD] AMD
IPU Device
09:00.0 Non-Essential Instrumentation [1300]: Advanced Micro Devices, Inc.
[AMD] Device 14ec
09:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Device 15c0
09:00.4 USB controller: Advanced Micro Devices, Inc. [AMD] Device 15c1
:~$ sudo dmesg | grep Bluetooth
no output
:~$ bluetoothctl
Waiting to connect to bluetoothd...
:~$ hcitool dev
Devices:
:~$ hciconfig -a
no output
sudo modprobe -r btusb
sleep 1
sudo modprobe btusb
-> did not fix the issue
WiFi of the MT7925 works fine, by the looks of it (I mostly use RJ45
2.5gbit ETH)
Thank you for your help and questions!
ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: linux-image-6.14.0-33-generic 6.14.0-33.33~24.04.1
ProcVersionSignature: Ubuntu 6.14.0-33.33~24.04.1-generic 6.14.11
Uname: Linux 6.14.0-33-generic x86_64
ApportVersion: 2.28.1-0ubuntu3.8
Architecture: amd64
CRDA: N/A
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Thu Oct 16 15:41:42 2025
InstallationDate: Installed on 2024-04-15 (549 days ago)
InstallationMedia: Ubuntu 24.04 LTS "Noble Numbat" - Beta amd64 (20240410.2)
MachineType: TOPC PHX ITX
ProcFB: 0 amdgpudrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.14.0-33-generic
root=UUID=610c7f13-03e7-416f-865c-e74268e3b6b7 ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-6.14.0-33-generic N/A
linux-backports-modules-6.14.0-33-generic N/A
linux-firmware 20240318.git3b128b60-0ubuntu2.19
RfKill:
0: phy0: Wireless LAN
Soft blocked: yes
Hard blocked: no
SourcePackage: linux-hwe-6.14
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/05/2024
dmi.bios.release: 5.29
dmi.bios.vendor: American Megatrends International, LLC.
dmi.bios.version: 0.01
dmi.board.asset.tag: Default string
dmi.board.name: PHX
dmi.board.vendor: TOPC
dmi.board.version: Default string
dmi.chassis.asset.tag: Default string
dmi.chassis.type: 3
dmi.chassis.vendor: Default string
dmi.chassis.version: Default string
dmi.modalias:
dmi:bvnAmericanMegatrendsInternational,LLC.:bvr0.01:bd07/05/2024:br5.29:svnTOPC:pnPHXITX:pvrDefaultstring:rvnTOPC:rnPHX:rvrDefaultstring:cvnDefaultstring:ct3:cvrDefaultstring:skuDefaultstring:
dmi.product.family: Default string
dmi.product.name: PHX ITX
dmi.product.sku: Default string
dmi.product.version: Default string
dmi.sys.vendor: TOPC
** Affects: linux-hwe-6.14 (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug noble wayland-session
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-hwe-6.14 in Ubuntu.
https://bugs.launchpad.net/bugs/2128120
Title:
6.14.0-33 ubuntu 24.04.03 MT7925 bluetooth gone
Status in linux-hwe-6.14 package in Ubuntu:
New
Bug description:
kernel 6.14.0-33 Ubuntu 24.04.3 LTS
I updated ubuntu today. After a restart that took very long the
bluetooth of my MT7925 is gone.
I read that this has been an issue in the past. For me it worked
flawlessly for more than half a year now.
System: AMD 7840HS (with mesa graphics), 48GB DDR5 5600, 512 GB PCIe-3 SSD
(Intel)
bluez 5.72-0ubuntu5.4
libbluetooth 5.72-0ubuntu5.4
gnome-bluetooth 46.0-1ubuntu1
I am not really a tech person. Please ask me for more information and
explain the steps on how to do it and the commands to put in. Thank
you!
expectation: bluetooth working
what happened instead: bluetooth not working any more after reboot
more information and what I tried:
:~$ lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 2109:2817 VIA Labs, Inc. USB2.0 Hub
Bus 001 Device 005: ID 046d:085c Logitech, Inc. C922 Pro Stream Webcam
Bus 001 Device 008: ID 05e3:0610 Genesys Logic, Inc. Hub
Bus 001 Device 009: ID 1a40:0101 Terminus Technology Inc. Hub
Bus 001 Device 010: ID 04f9:0054 Brother Industries, Ltd HL-1110 series
Bus 001 Device 011: ID 06cb:1595 Synaptics, Inc. CX31993 384Khz HIFI AUDIO
Bus 001 Device 012: ID 32e4:0234 Global Shutter Camera Global Shutter Camera
Bus 001 Device 013: ID 1017:a003 Speedy Industrial Supplies, Pte., Ltd
Skiller SGK4
Bus 001 Device 014: ID 1e7d:2de6 ROCCAT ROCCAT Burst Core
Bus 001 Device 015: ID 05e3:0610 Genesys Logic, Inc. Hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 002 Device 002: ID 2109:0817 VIA Labs, Inc. USB3.0 Hub
Bus 002 Device 003: ID 174c:1153 ASMedia Technology Inc. ASM1153 SATA 3Gb/s
bridge
Bus 002 Device 004: ID 05e3:0626 Genesys Logic, Inc. Hub
Bus 002 Device 005: ID 05e3:0626 Genesys Logic, Inc. Hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 002: ID 214b:7250 Huasheng Electronics USB2.0 HUB
Bus 003 Device 003: ID 214b:7250 Huasheng Electronics USB2.0 HUB
Bus 003 Device 004: ID 1e7d:2de6 ROCCAT ROCCAT Burst Core
Bus 003 Device 005: ID 03eb:ff01 Atmel Corp. WootingOne
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 006 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 007 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 008 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
:~$ lspci
00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14e8
00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Device 14e9
00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14ea
00:01.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 14ed
00:01.3 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 14ee
00:02.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14ea
00:02.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 14ee
00:02.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 14ee
00:02.4 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 14ee
00:02.6 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 14ee
00:03.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14ea
00:04.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14ea
00:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14ea
00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 14eb
00:08.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 14eb
00:08.3 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 14eb
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev
71)
00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 51)
00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14f0
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14f1
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14f2
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14f3
00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14f4
00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14f5
00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14f6
00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14f7
02:00.0 Ethernet controller: Intel Corporation Ethernet Controller I226-V
(rev 04)
03:00.0 Ethernet controller: Intel Corporation Ethernet Controller I226-V
(rev 04)
04:00.0 Network controller: MEDIATEK Corp. Device 7925
05:00.0 Non-Volatile memory controller: Intel Corporation SSD 660P Series
(rev 03)
06:00.0 SATA controller: ASMedia Technology Inc. ASM1064 Serial ATA
Controller (rev 02)
07:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI]
Phoenix1 (rev c2)
07:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Rembrandt Radeon
High Definition Audio Controller
07:00.2 Encryption controller: Advanced Micro Devices, Inc. [AMD] Family 19h
(Model 74h) CCP/PSP 3.0 Device
07:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Device 15b9
07:00.4 USB controller: Advanced Micro Devices, Inc. [AMD] Device 15ba
07:00.5 Multimedia controller: Advanced Micro Devices, Inc. [AMD]
ACP/ACP3X/ACP6x Audio Coprocessor (rev 63)
07:00.6 Audio device: Advanced Micro Devices, Inc. [AMD] Family 17h/19h HD
Audio Controller
08:00.0 Non-Essential Instrumentation [1300]: Advanced Micro Devices, Inc.
[AMD] Device 14ec
08:00.1 Signal processing controller: Advanced Micro Devices, Inc. [AMD] AMD
IPU Device
09:00.0 Non-Essential Instrumentation [1300]: Advanced Micro Devices, Inc.
[AMD] Device 14ec
09:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Device 15c0
09:00.4 USB controller: Advanced Micro Devices, Inc. [AMD] Device 15c1
:~$ sudo dmesg | grep Bluetooth
no output
:~$ bluetoothctl
Waiting to connect to bluetoothd...
:~$ hcitool dev
Devices:
:~$ hciconfig -a
no output
sudo modprobe -r btusb
sleep 1
sudo modprobe btusb
-> did not fix the issue
WiFi of the MT7925 works fine, by the looks of it (I mostly use RJ45
2.5gbit ETH)
Thank you for your help and questions!
ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: linux-image-6.14.0-33-generic 6.14.0-33.33~24.04.1
ProcVersionSignature: Ubuntu 6.14.0-33.33~24.04.1-generic 6.14.11
Uname: Linux 6.14.0-33-generic x86_64
ApportVersion: 2.28.1-0ubuntu3.8
Architecture: amd64
CRDA: N/A
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Thu Oct 16 15:41:42 2025
InstallationDate: Installed on 2024-04-15 (549 days ago)
InstallationMedia: Ubuntu 24.04 LTS "Noble Numbat" - Beta amd64 (20240410.2)
MachineType: TOPC PHX ITX
ProcFB: 0 amdgpudrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.14.0-33-generic
root=UUID=610c7f13-03e7-416f-865c-e74268e3b6b7 ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-6.14.0-33-generic N/A
linux-backports-modules-6.14.0-33-generic N/A
linux-firmware 20240318.git3b128b60-0ubuntu2.19
RfKill:
0: phy0: Wireless LAN
Soft blocked: yes
Hard blocked: no
SourcePackage: linux-hwe-6.14
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/05/2024
dmi.bios.release: 5.29
dmi.bios.vendor: American Megatrends International, LLC.
dmi.bios.version: 0.01
dmi.board.asset.tag: Default string
dmi.board.name: PHX
dmi.board.vendor: TOPC
dmi.board.version: Default string
dmi.chassis.asset.tag: Default string
dmi.chassis.type: 3
dmi.chassis.vendor: Default string
dmi.chassis.version: Default string
dmi.modalias:
dmi:bvnAmericanMegatrendsInternational,LLC.:bvr0.01:bd07/05/2024:br5.29:svnTOPC:pnPHXITX:pvrDefaultstring:rvnTOPC:rnPHX:rvrDefaultstring:cvnDefaultstring:ct3:cvrDefaultstring:skuDefaultstring:
dmi.product.family: Default string
dmi.product.name: PHX ITX
dmi.product.sku: Default string
dmi.product.version: Default string
dmi.sys.vendor: TOPC
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