I've always managed to get the bluetooth working with my headsets using Blueman. The only exception was when I suspended my laptop it would give me this message: "Bluetooth turned off, bluetooth needs to be turned on for the device manager to function" with the option to enable it, even though it is already the case. There was the systray icon on the panel but I couldn't pair/connect to any device.
It wasn't bothering me that much, all I had to do was rebooting. However, it has became permanent now. I haven't updated anything major, even the upgrade to 19.1 didn't affect my problem. I tried to uninstall and purge blueman (and dependecies), tried the default bluetooth manager, turning off the wifi to see if there was a conflict with it etc. I really don't know what to do now, I'd really appreciate some help thanks.
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System:
Host: alexandre-Aspire-5736Z Kernel: 4.15.0-43-generic x86_64 bits: 64
compiler: gcc v: 7.3.0 Desktop: Xfce 4.12.3 Distro: Linux Mint 19.1 Tessa
base: Ubuntu 18.04 bionic
Machine:
Type: Laptop System: Acer product: Aspire 5736Z v: V1.00
serial: <root required>
Mobo: Acer model: Aspire 5736Z v: V1.00 serial: <root required> BIOS: Acer
v: 1.00 date: 07/22/2010
Battery:
ID-1: BAT0 charge: 58.3 Wh condition: 58.3/71.3 Wh (82%)
model: PANASONIC AS10D51 status: Full
CPU:
Topology: Dual Core model: Pentium T4500 bits: 64 type: MCP arch: Penryn
rev: A L2 cache: 1024 KiB
flags: lm nx pae sse sse2 sse3 ssse3 bogomips: 9178
Speed: 1596 MHz min/max: 1200/2300 MHz Core speeds (MHz): 1: 1596 2: 1596
Graphics:
Device-1: Intel Mobile 4 Series Integrated Graphics
vendor: Acer Incorporated ALI driver: i915 v: kernel bus ID: 00:02.0
Display: x11 server: X.Org 1.19.6 driver: intel resolution: 1366x768~60Hz
OpenGL: renderer: Mesa DRI Mobile Intel GM45 Express v: 2.1 Mesa 18.0.5
direct render: Yes
Audio:
Device-1: Intel 82801I HD Audio vendor: Acer Incorporated ALI
driver: snd_hda_intel v: kernel bus ID: 00:1b.0
Sound Server: ALSA v: k4.15.0-43-generic
Network:
Device-1: Broadcom Limited BCM4313 802.11bgn Wireless Network Adapter
vendor: Hewlett-Packard driver: wl v: kernel port: 4000 bus ID: 04:00.0
IF: wlp4s0 state: up mac: 40:2c:f4:02:19:c0
Device-2: Broadcom Limited NetLink BCM57780 Gigabit Ethernet PCIe
vendor: Acer Incorporated ALI driver: tg3 v: 3.137 port: 4000
bus ID: 05:00.0
IF: enp5s0 state: down mac: 88:ae:1d:76:02:24
Drives:
Local Storage: total: 232.89 GiB used: 83.38 GiB (35.8%)
ID-1: /dev/sda vendor: Samsung model: SSD 860 EVO 250GB size: 232.89 GiB
Partition:
ID-1: / size: 37.51 GiB used: 23.55 GiB (62.8%) fs: ext4 dev: /dev/sda1
ID-2: /home size: 189.72 GiB used: 59.83 GiB (31.5%) fs: ext4
dev: /dev/sda2
Sensors:
System Temperatures: cpu: 49.0 C mobo: N/A
Fan Speeds (RPM): N/A
Info:
Processes: 167 Uptime: 19m Memory: 3.78 GiB used: 1.23 GiB (32.4%)
Init: systemd runlevel: 5 Compilers: gcc: 7.3.0 Shell: bash v: 4.4.19
inxi: 3.0.27