Bluetooth adapter not found, Sylvia 18.3, Qualcomm QCA6174

[michelus]

Hi there,

I've been reading in the forums and I can't find anything similar so ... here is my problem. I had my bluetooth working and I installed blueman. After that, the system can't find the bluetooth adapter anymore. I tried to remove blueman and reinstall all the related bluetooth packages without success.

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lspci
00:00.0 Host bridge: Intel Corporation Device 5910 (rev 05)
00:01.0 PCI bridge: Intel Corporation Sky Lake PCIe Controller (x16) (rev 05)
00:02.0 VGA compatible controller: Intel Corporation Device 591b (rev 04)
00:04.0 Signal processing controller: Intel Corporation Skylake Processor Thermal Subsystem (rev 05)
00:14.0 USB controller: Intel Corporation Sunrise Point-H USB 3.0 xHCI Controller (rev 31)
00:14.2 Signal processing controller: Intel Corporation Sunrise Point-H Thermal subsystem (rev 31)
00:15.0 Signal processing controller: Intel Corporation Sunrise Point-H LPSS I2C Controller #0 (rev 31)
00:15.1 Signal processing controller: Intel Corporation Sunrise Point-H LPSS I2C Controller #1 (rev 31)
00:16.0 Communication controller: Intel Corporation Sunrise Point-H CSME HECI #1 (rev 31)
00:17.0 RAID bus controller: Intel Corporation SATA Controller [RAID mode] (rev 31)
00:1c.0 PCI bridge: Intel Corporation Sunrise Point-H PCI Express Root Port #2 (rev f1)
00:1c.2 PCI bridge: Intel Corporation Sunrise Point-H PCI Express Root Port #3 (rev f1)
00:1c.4 PCI bridge: Intel Corporation Sunrise Point-H PCI Express Root Port #5 (rev f1)
00:1d.0 PCI bridge: Intel Corporation Sunrise Point-H PCI Express Root Port #9 (rev f1)
00:1f.0 ISA bridge: Intel Corporation Sunrise Point-H LPC Controller (rev 31)
00:1f.2 Memory controller: Intel Corporation Sunrise Point-H PMC (rev 31)
00:1f.3 Audio device: Intel Corporation Device a171 (rev 31)
00:1f.4 SMBus: Intel Corporation Sunrise Point-H SMBus (rev 31)
00:1f.6 Ethernet controller: Intel Corporation Ethernet Connection (5) I219-LM (rev 31)
01:00.0 VGA compatible controller: NVIDIA Corporation Device 13b6 (rev a2)
02:00.0 Network controller: Qualcomm Atheros QCA6174 802.11ac Wireless Network Adapter (rev 32)
03:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS525A PCI Express Card Reader (rev 01)
3d:00.0 Non-Volatile memory controller: Device 1c5c:1527]

The output of dmesg | grep -i blue

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[   12.625582] Bluetooth: Core ver 2.22
[   12.625593] Bluetooth: HCI device and connection manager initialized
[   12.625595] Bluetooth: HCI socket layer initialized
[   12.625596] Bluetooth: L2CAP socket layer initialized
[   12.625600] Bluetooth: SCO socket layer initialized
[   12.632334] Bluetooth: HCI UART driver ver 2.3
[   12.632334] Bluetooth: HCI UART protocol H4 registered
[   12.632335] Bluetooth: HCI UART protocol BCSP registered
[   12.632335] Bluetooth: HCI UART protocol LL registered
[   12.632335] Bluetooth: HCI UART protocol ATH3K registered
[   12.632336] Bluetooth: HCI UART protocol Three-wire (H5) registered
[   12.632355] Bluetooth: HCI UART protocol Intel registered
[   12.632363] Bluetooth: HCI UART protocol Broadcom registered
[   12.632363] Bluetooth: HCI UART protocol QCA registered
[   12.632363] Bluetooth: HCI UART protocol AG6XX registered
[   12.632364] Bluetooth: HCI UART protocol Marvell registered
[   24.305152] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[   24.305152] Bluetooth: BNEP filters: protocol multicast
[   24.305154] Bluetooth: BNEP socket layer initialized

Sorry, I can't figure out how to include the code in the nice boxes like everybody else.

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sudo rfkill list
0: dell-wifi: Wireless LAN
	Soft blocked: no
	Hard blocked: no
1: phy0: Wireless LAN
	Soft blocked: no
	Hard blocked: no

Any help ??
Thanks for your time

[JeremyB]

Please post results for

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uname -a; lsusb; dmesg | grep -i firmware