Estou usando o Dell Inspiron 27 7775.
Semanas atrás, de repente minha conexão Bluetooth é perdida após o login no modo de economia de energia,
e eu não pude usar o Bluetooth a partir de então porque o adaptador não foi encontrado.
Eu estava usando apenas meu fone de ouvido Bluetooth e não atualizei ou atualizei.
Literalmente, de repente, perdeu sua conexão.
Eu pensei que era devido ao problema de driver no Ubuntu (eu estou usando o Ubuntu 16.04),
então eu tentei no Windows (eu estou usando o Windows 10 como dual boot),
mas também não consegui encontrar o adaptador.
Também tentei reinstalar e atualizar os drivers, isso não resolveu o problema.
Na verdade, acho que é bem estranho, porque eu ainda posso usar meu Wifi usando o mesmo adaptador, Qualcomm Atheros QCA6174 802.11ac , tanto no Ubuntu quanto no Windows.
Eu já relatei esse problema para a equipe de suporte da Dell e recebi o adaptador correspondente alterado, mas o problema ainda não foi resolvido.
Eles me disseram para tentar formatar e reinstalar novamente, mas espero que haja outra maneira sem formato.
Aqui estão os meus resultados de lspci e lsusb no Ubuntu.
resultado do lspci
00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1450
00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Device 1451
00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1452
00:01.3 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 1453
00:02.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1452
00:03.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1452
00:03.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 1453
00:04.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1452
00:07.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1452
00:07.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 1454
00:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1452
00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 1454
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 59)
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 1460
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1461
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1462
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1463
00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1464
00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1465
00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1466
00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1467
01:00.0 USB controller: Advanced Micro Devices, Inc. [AMD] Device 43bb (rev 02)
01:00.1 SATA controller: Advanced Micro Devices, Inc. [AMD] Device 43b7 (rev 02)
01:00.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 43b2 (rev 02)
02:00.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 43b4 (rev 02)
02:01.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 43b4 (rev 02)
02:04.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 43b4 (rev 02)
03:00.0 Network controller: Qualcomm Atheros QCA6174 802.11ac Wireless Network Adapter (rev 32)
04:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 15) 05:00.0 Non-Volatile memory controller: Device 1c5c:1283
06:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Device 67df (rev c4)
06:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Device aaf0
07:00.0 Non-Essential Instrumentation [1300]: Advanced Micro Devices, Inc. [AMD] Device 145a
07:00.2 Encryption controller: Advanced Micro Devices, Inc. [AMD] Device 1456
07:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Device 145c
08:00.0 Non-Essential Instrumentation [1300]: Advanced Micro Devices, Inc. [AMD] Device 1455
08:00.2 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode] (rev 51)
08:00.3 Audio device: Advanced Micro Devices, Inc. [AMD] Device 1457
resultado de lsusb
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 002: ID 413c:8505 Dell Computer Corp.
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 0bda:58f8 Realtek Semiconductor Corp.
Bus 001 Device 002: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Espero que alguém saiba como consertar isso ou, pelo menos, o motivo dessa situação.
Obrigado por ler.