My bluetooth stopped working all of a sudden. I was using my bluetooth paired device flawlessly until a few hours ago, at which time both the WiFi and the Bluetooth stopped working all of a sudden. No new packages installed, no manual or automated updates, either. I managed to recover the WiFi just with a reboot, but not the bluetooth. Here are some specifics about my setup, any help would be appreciated.
Linux Mint 19 on an Acer Aspire. Based on what I read elsewhere, I attempted to reinstall blueman, bluemon and bluez to no avail.
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rfkill
ID TYPE DEVICE SOFT HARD
0 wlan acer-wireless unblocked unblocked
1 bluetooth acer-bluetooth unblocked unblocked
2 wlan phy0 unblocked unblocked
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sudo systemctl status bluetooth
bluetooth.service - Bluetooth service
Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled; vendor pres
Active: active (running) since Sun 2018-08-12 21:33:46 EDT; 2s ago
Docs: man:bluetoothd(8)
Main PID: 3006 (bluetoothd)
Status: "Running"
Tasks: 1 (limit: 4915)
CGroup: /system.slice/bluetooth.service
└─3006 /usr/lib/bluetooth/bluetoothd
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echo "scan on" | bluetoothctl
[bluetooth]# scan ono bluetoothd...
No default controller available
Agent registered
Agent unregistered
According to error logs, there might be some problems with my firmwares, though I do not understand why since the very same laptop used to work without any such issues and I did not make any kernel updates, nor firmware changes. Is this "error -2" the root cause, or is it irrelevant?
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dmesg | egrep -i 'blue|firm'
[ 0.042220] [Firmware Info]: CPU: Re-enabling disabled Topology Extensions Support.
[ 0.076123] ACPI: [Firmware Bug]: BIOS _OSI(Linux) query ignored
[ 0.088088] acpi PNP0A08:00: [Firmware Info]: MMCONFIG for domain 0000 [bus 00-3f] only partially covers this bridge
[ 1.265464] [drm] Found UVD firmware Version: 1.87 Family ID: 11
[ 1.266261] [drm] Found VCE firmware Version: 52.4 Binary ID: 3
[ 6.452430] ath10k_pci 0000:02:00.0: Direct firmware load for ath10k/pre-cal-pci-0000:02:00.0.bin failed with error -2
[ 6.452449] ath10k_pci 0000:02:00.0: Direct firmware load for ath10k/cal-pci-0000:02:00.0.bin failed with error -2
[ 6.454375] ath10k_pci 0000:02:00.0: Direct firmware load for ath10k/QCA9377/hw1.0/firmware-6.bin failed with error -2
[ 6.460878] ath10k_pci 0000:02:00.0: firmware ver WLAN.TF.1.0-00002-QCATFSWPZ-5 api 5 features ignore-otp crc32 c3e0d04f
[ 131.359945] Bluetooth: Core ver 2.22
[ 131.360018] Bluetooth: HCI device and connection manager initialized
[ 131.360030] Bluetooth: HCI socket layer initialized
[ 131.360037] Bluetooth: L2CAP socket layer initialized
[ 131.360051] Bluetooth: SCO socket layer initialized
[ 321.541435] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 321.541437] Bluetooth: BNEP filters: protocol multicast
[ 321.541443] Bluetooth: BNEP socket layer initialized