I have a Beelink 4900H miniPC which uses a Mediatek BT/WiFi controller for wireless. The BT is on USB and the WiFi is on PCI. Debian/Proxmox identify the driver as MT7961, but Windows identify the driver as MT7921 for BT and MT7922 for WinFi. I assume as MT7921 does not exist under Linux MT7961 is the correct module to use.
Initially the system would not load the driver
so I manually downloaded it from
and copied it to
On reboot the system throws an error which unfortunately I cannot troubleshoot. I seek assistance to resolve this issue please. dmesg output below:
then further down the dmesg list, another error
I also provide he text output in case it is useful:
[ 4.172992] Bluetooth: Core ver 2.22
[ 4.173149] platform regulatory.0: Direct firmware load for regulatory.db failed with error -2
[ 4.173160] cfg80211: failed to load regulatory.db
[ 4.173530] NET: Registered PF_BLUETOOTH protocol family
[ 4.173533] Bluetooth: HCI device and connection manager initialized
[ 4.173537] Bluetooth: HCI socket layer initialized
[ 4.173539] Bluetooth: L2CAP socket layer initialized
[ 4.173543] Bluetooth: SCO socket layer initialized
[ 4.209654] usbcore: registered new interface driver btusb
[ 4.216587] BUG: unable to handle page fault for address: ffffa0d838e1e469
[ 4.216600] #PF: supervisor read access in kernel mode
[ 4.216603] #PF: error_code(0x0000) - not-present page
[ 4.216605] PGD 100000067 P4D 100000067 PUD 0
[ 4.216610] Oops: 0000 [#1] SMP NOPTI
[ 4.216614] CPU: 5 PID: 208 Comm: kworker/u33:0 Tainted: P O 5.15.39-3-pve #2
[ 4.216618] Hardware name: AZW GTR/GTR, BIOS GTR_V1.08_P3C7M43 12/07/2021
[ 4.216622] Workqueue: hci0 hci_power_on [bluetooth]
[ 4.216676] RIP: 0010:__memcpy+0x12/0x20
[ 4.216683] Code: 5d e9 a2 a9 28 00 cc cc 48 8b 05 91 25 6f 01 e9 94 a9 28 00 cc cc cc cc 0f 1f 44 00 00 48 89 f8 48 89 d1 48 c1 e9 03 83 e2 07 <f3> 48 a5 89 d1 f3 a4 e9 72 a9 28 00 66 90 48 89 f8 48 89 d1 f3 a4
[ 4.216688] RSP: 0018:ffffa0d7c05b7c08 EFLAGS: 00010202
[ 4.216691] RAX: ffff8ac5cbe0d805 RBX: ffffa0d7c05b7c80 RCX: 000000000000001f
[ 4.216693] RDX: 0000000000000002 RSI: ffffa0d838e1e469 RDI: ffff8ac5cbe0d805
[ 4.216696] RBP: ffffa0d7c05b7c48 R08: 0000000000000100 R09: ffff8ac5cbe0d800
[ 4.216698] R10: ffff8ac5d84fd2c0 R11: ffff8ac5d215f700 R12: ffff8ac5cbe0d800
[ 4.216700] R13: ffff8ac5c0af4000 R14: ffff8ac5c0afb428 R15: 00000000000000ff
[ 4.216702] FS: 0000000000000000(0000) GS:ffff8acc8f740000(0000) knlGS:0000000000000000
[ 4.216706] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4.216708] CR2: ffffa0d838e1e469 CR3: 00000001123c2000 CR4: 0000000000350ee0
[ 4.216711] Call Trace:
[ 4.216713] <TASK>
[ 4.216715] ? btusb_mtk_hci_wmt_sync+0x85/0x3d0 [btusb]
[ 4.216721] btusb_mtk_setup_firmware_79xx+0x1d5/0x2e0 [btusb]
[ 4.216726] btusb_mtk_setup+0x2c8/0x710 [btusb]
[ 4.216730] ? rpm_idle+0x1c8/0x2d0
[ 4.216734] ? __pm_runtime_idle+0x57/0x100
[ 4.216737] ? btusb_open+0x65/0x270 [btusb]
[ 4.216741] hci_dev_do_open+0x227/0x820 [bluetooth]
[ 4.216763] ? try_to_wake_up+0x218/0x5c0
[ 4.216768] hci_power_on+0x53/0x220 [bluetooth]
[ 4.216788] ? lock_timer_base+0x3b/0xd0
[ 4.216793] process_one_work+0x22b/0x3d0
[ 4.216797] worker_thread+0x53/0x420
[ 4.216799] ? process_one_work+0x3d0/0x3d0
[ 4.216802] kthread+0x12a/0x150
[ 4.216805] ? set_kthread_struct+0x50/0x50
[ 4.216809] ret_from_fork+0x22/0x30
[ 4.216816] </TASK>
[ 4.216817] Modules linked in: joydev rapl(+) btusb mac80211 btrtl input_leds btbcm snd_pci_acp6x fjes(-) snd_hwdep i2c_algo_bit btintel fb_sys_fops bluetooth snd_pcm efi_pstore pcspkr syscopyarea ecdh_generic sysfillrect cfg80211 ecc snd_timer sysimgblt k10temp snd_pci_acp5x snd snd_rn_pci_acp3x snd_pci_acp3x soundcore ccp libarc4 mac_hid vhost_net vhost vhost_iotlb tap ib_iser rdma_cm iw_cm ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi drm sunrpc ip_tables x_tables autofs4 zfs(PO) zunicode(PO) zzstd(O) zlua(O) zavl(PO) icp(PO) zcommon(PO) znvpair(PO) spl(O) btrfs blake2b_generic xor zstd_compress raid6_pq libcrc32c simplefb hid_generic usbmouse usbkbd usbhid crc32_pclmul xhci_pci ahci xhci_pci_renesas nvme libahci i2c_piix4 xhci_hcd nvme_core r8169 realtek video i2c_hid_acpi i2c_hid hid
[ 4.216881] CR2: ffffa0d838e1e469
[ 4.216884] ---[ end trace c1db2f38faf1a922 ]---
I am running both subscribed and usubscribed instances of Proxmox. In this case the test is on a no-subscription host used for testing prior to production, running on the absolutely latest Proxmox VE 7.2-7.
I have also tried to load BT_RAM_CODE_MT7922_1_1_hdr.bin with no success either.
rfkill returns the following:
however bluetoothctl returns nothing
Initially the system would not load the driver
so I manually downloaded it from
and copied it to
On reboot the system throws an error which unfortunately I cannot troubleshoot. I seek assistance to resolve this issue please. dmesg output below:
then further down the dmesg list, another error
I also provide he text output in case it is useful:
[ 4.172992] Bluetooth: Core ver 2.22
[ 4.173149] platform regulatory.0: Direct firmware load for regulatory.db failed with error -2
[ 4.173160] cfg80211: failed to load regulatory.db
[ 4.173530] NET: Registered PF_BLUETOOTH protocol family
[ 4.173533] Bluetooth: HCI device and connection manager initialized
[ 4.173537] Bluetooth: HCI socket layer initialized
[ 4.173539] Bluetooth: L2CAP socket layer initialized
[ 4.173543] Bluetooth: SCO socket layer initialized
[ 4.209654] usbcore: registered new interface driver btusb
[ 4.216587] BUG: unable to handle page fault for address: ffffa0d838e1e469
[ 4.216600] #PF: supervisor read access in kernel mode
[ 4.216603] #PF: error_code(0x0000) - not-present page
[ 4.216605] PGD 100000067 P4D 100000067 PUD 0
[ 4.216610] Oops: 0000 [#1] SMP NOPTI
[ 4.216614] CPU: 5 PID: 208 Comm: kworker/u33:0 Tainted: P O 5.15.39-3-pve #2
[ 4.216618] Hardware name: AZW GTR/GTR, BIOS GTR_V1.08_P3C7M43 12/07/2021
[ 4.216622] Workqueue: hci0 hci_power_on [bluetooth]
[ 4.216676] RIP: 0010:__memcpy+0x12/0x20
[ 4.216683] Code: 5d e9 a2 a9 28 00 cc cc 48 8b 05 91 25 6f 01 e9 94 a9 28 00 cc cc cc cc 0f 1f 44 00 00 48 89 f8 48 89 d1 48 c1 e9 03 83 e2 07 <f3> 48 a5 89 d1 f3 a4 e9 72 a9 28 00 66 90 48 89 f8 48 89 d1 f3 a4
[ 4.216688] RSP: 0018:ffffa0d7c05b7c08 EFLAGS: 00010202
[ 4.216691] RAX: ffff8ac5cbe0d805 RBX: ffffa0d7c05b7c80 RCX: 000000000000001f
[ 4.216693] RDX: 0000000000000002 RSI: ffffa0d838e1e469 RDI: ffff8ac5cbe0d805
[ 4.216696] RBP: ffffa0d7c05b7c48 R08: 0000000000000100 R09: ffff8ac5cbe0d800
[ 4.216698] R10: ffff8ac5d84fd2c0 R11: ffff8ac5d215f700 R12: ffff8ac5cbe0d800
[ 4.216700] R13: ffff8ac5c0af4000 R14: ffff8ac5c0afb428 R15: 00000000000000ff
[ 4.216702] FS: 0000000000000000(0000) GS:ffff8acc8f740000(0000) knlGS:0000000000000000
[ 4.216706] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4.216708] CR2: ffffa0d838e1e469 CR3: 00000001123c2000 CR4: 0000000000350ee0
[ 4.216711] Call Trace:
[ 4.216713] <TASK>
[ 4.216715] ? btusb_mtk_hci_wmt_sync+0x85/0x3d0 [btusb]
[ 4.216721] btusb_mtk_setup_firmware_79xx+0x1d5/0x2e0 [btusb]
[ 4.216726] btusb_mtk_setup+0x2c8/0x710 [btusb]
[ 4.216730] ? rpm_idle+0x1c8/0x2d0
[ 4.216734] ? __pm_runtime_idle+0x57/0x100
[ 4.216737] ? btusb_open+0x65/0x270 [btusb]
[ 4.216741] hci_dev_do_open+0x227/0x820 [bluetooth]
[ 4.216763] ? try_to_wake_up+0x218/0x5c0
[ 4.216768] hci_power_on+0x53/0x220 [bluetooth]
[ 4.216788] ? lock_timer_base+0x3b/0xd0
[ 4.216793] process_one_work+0x22b/0x3d0
[ 4.216797] worker_thread+0x53/0x420
[ 4.216799] ? process_one_work+0x3d0/0x3d0
[ 4.216802] kthread+0x12a/0x150
[ 4.216805] ? set_kthread_struct+0x50/0x50
[ 4.216809] ret_from_fork+0x22/0x30
[ 4.216816] </TASK>
[ 4.216817] Modules linked in: joydev rapl(+) btusb mac80211 btrtl input_leds btbcm snd_pci_acp6x fjes(-) snd_hwdep i2c_algo_bit btintel fb_sys_fops bluetooth snd_pcm efi_pstore pcspkr syscopyarea ecdh_generic sysfillrect cfg80211 ecc snd_timer sysimgblt k10temp snd_pci_acp5x snd snd_rn_pci_acp3x snd_pci_acp3x soundcore ccp libarc4 mac_hid vhost_net vhost vhost_iotlb tap ib_iser rdma_cm iw_cm ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi drm sunrpc ip_tables x_tables autofs4 zfs(PO) zunicode(PO) zzstd(O) zlua(O) zavl(PO) icp(PO) zcommon(PO) znvpair(PO) spl(O) btrfs blake2b_generic xor zstd_compress raid6_pq libcrc32c simplefb hid_generic usbmouse usbkbd usbhid crc32_pclmul xhci_pci ahci xhci_pci_renesas nvme libahci i2c_piix4 xhci_hcd nvme_core r8169 realtek video i2c_hid_acpi i2c_hid hid
[ 4.216881] CR2: ffffa0d838e1e469
[ 4.216884] ---[ end trace c1db2f38faf1a922 ]---
I am running both subscribed and usubscribed instances of Proxmox. In this case the test is on a no-subscription host used for testing prior to production, running on the absolutely latest Proxmox VE 7.2-7.
I have also tried to load BT_RAM_CODE_MT7922_1_1_hdr.bin with no success either.
rfkill returns the following:
however bluetoothctl returns nothing