I recently installed Ubuntu 13.04 in dual boot with 12.04.1.  The problem I have is with the Bluetooth not working. I've tried searching for my phone, but no luck. I've installed Blueman and still no go. Bluetooth is working just fine on 12.04.1, but on 13.04 it is simply dead.  Personal file sharing is enabled on both versions, visibility is enabled but no matter what I do I can't get it to work. This is really annoying. How can I fix this problem?
121751
I have a Broadcom BCM2046, it appears as connected in the bluetooth widget over the panel, and the hcitools drops me data, but it doesn't work at all, I've tried to connect from another device and it's inexistent and viceversa from PC to the device  hcitool dev and lsusb  hci0:   Type: BR/EDR  Bus: USB BD Address: 89:21:09:79:B5:1B  ACL MTU: 1017:8  SCO MTU: 64:0 UP RUNNING PSCAN ISCAN  RX bytes:779 acl:0 sco:0 events:27 errors:0 TX bytes:376 acl:0 sco:0 commands:27 errors:0  Bus 001 Device 007: ID 0a5c:4500 Broadcom Corp. BCM2046B1 USB 2.0 Hub (part of       BCM2046 Bluetooth) Bus 001 Device 008: ID 0a5c:2100 Broadcom Corp. Bluetooth 2.0+eDR dongle
10240
I am using Ubuntu 19.10 for few months. Suddenly voice output is not working. In-spite of trying reinstalling sound drives and tried all options despite that  it is not working. Any inputs to it?
102263
Cannot make this wireless adapter work on Ubuntu 20.04... please help. I've tried this:  and now lsusb sees the device, but still doesn't work. lsusb: Bus 002 Device 006: ID 2357:0138 TP-Link 802.11ac NIC uname -r: 5.4.0-39-generic Edit: It works on my other computer with Ubuntu 18.04 using T2U Plus driver from here:  But it does not work with Ubuntu 20.04... sudo modprobe 88x2bu: Gives nothing. modinfo 88x2bu | grep -e version -e 0138 : version:        v5.6.1_30362.20181109_COEX20180928-6a6a srcversion:     9C5282368F93050B7206C8D parm:           rtw_chip_version:int  dmesg | grep 88x2 : [ 8087.334869] 88x2bu: loading out-of-tree module taints kernel. [ 8087.336610] 88x2bu: module verification failed: signature and/or required key missing - tainting kernel [ 8087.341389] usbcore: registered new interface driver rtl88x2bu
102438
I recently upgraded to Ubuntu 13.04 from Ubuntu 12.10. However, since then although my wireless network is detected, I cannot connect to it.  Ubuntu keeps on trying to reconnect with the network but is not successful. Same machine on Windows 8 I am able to connect to the same wireless network.  Also, Ethernet is working fine as I am able to connect to the same network through Ethernet on Ubuntu.  My lspci -nn output is   12:00.0 Network controller [0280]: Broadcom Corporation BCM4313 802.11b/g/n Wireless LAN Controller [14e4:4727] (rev 01) 13:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd.                RTL8101E/RTL8102E PCI Express Fast Ethernet controller [10ec:8136] (rev 02)   I already tried the solution in this post  but it not solving my problem. The situation is the same.  Please help me. I do not want to switch to using Windows again.
105301
Will the new Ubuntu Phone support VoIP through the operating system when out of range of the network the user has? This would be a great way to steal market share from Apple which doesn't support VoIP except through complicated apps.
62733
I have a Plantronics BackBeat Sense SE bluetooth headset. When Connecting it to Windows 10, it installs two profiles in Playback devices list:    PLT_BBTSENSE Hands-Free. PLT_BBTSENSE Stereo.   The Second one (Stereo) is set to be the "Default Device" and the "Default Communication Device" on the system.   At this point the sound works great and normally. The problem happens when I want to use the mic. When I start any program that uses the mic (recorder, chat, VoIP Calls, gaming, etc.) The sound suddenly stops working And I can only use the mic until I stop the recorder or the call.   The thing that kind of fixes the problem is setting the (Hands-Free) as the default device. I can hear the sound when I do that and it works with the mic but it becomes Very bad quality.  What I became to understand is that bluetooth had different profiles for sound and mic: A2DP and HSP. The first handle the voice(High Quality) but the latter handles the mic and reduces the sound quality.  Is this really the case? Is there anyway to make them work simultaneously? Is there any solution to this problem at all?
68061
I am having trouble with Bluetooth Low Energy (BT 4.0) on a Nexus 7.  I think I may have a 2012 model.  How to tell if I have a 2012 or 2013 version of the Nexus 7?
28578
In System Settings > Bluetooth, the Bose QC 35 is visible when searching for devices but pairing fails.  After multiple attempts and playing with the PIN options I managed to pair it but once selected in System Settings > Sound, it would fail and fall back to Built-in Audio or playback some garbled sound.
64948
With Ubuntu 16.04 I've been attempting to pair by Apple airpods as a headset. They come up as headphones. They work fine as headphones, but I would like the microphone to be available
82065
I have Ubuntu 10.04 installed as a desktop OS and a Symbian-based smartphone (Nokia N79). How can I use my desktop system with a headset to make and receive usual mobile phone calls using a connected (via cable or Bluetooth) smartphone?  Thanks.
74760
I just installed ubuntu 13.10 on my dell vostro 1000 laptop. It has the broadcom 4311 wireless.  It doesn't work, ubuntu software centre shows I have the bcmwl kernel source drivers and the Linux firmware drivers already on.  ( I noticed other questions have said the solution is to remove the former and install the latter.)  However I have no way of getting an Ethernet connection, is it not possible to do it from the USB install?  If not, how will I download the packages I need from a friends laptop tomorrow?
82064
After I installed Ubuntu 12.04, there are no sound at all on my headphone (rear jack panel).  On Sound settings > playback, it seemed that the sounds were detected after I choose 'play sound'.  Anybody can fix this issue??  Thanks.
88508
Every time I connect a bluetooth headset it shows up as 2 things on sound playback devices.    I can choose bluedio stereo or bluedio hands free.  What is that?  What's the difference?  I often see the stereo part to be unstable though.
16961
I installed Ubuntu 17.10.1 on my HP Pavilion x360 convertible, and my wi-fi connection was very weak.  I tried to install this driver from GitHub called rock.new_btcoex, but it didn't work.  What else can I try?
107840
I've a phone with Android and I use Ubuntu in my PC. The thing is that I can connect my phone through USB and Ubuntu can read it, I mean, I can see the files and stuff, but that's it.  I can't transfer files without broking them, can't view photos either, and all the things that I can do with Windows are gone when using Ubuntu or any Linux distro.  Maybe I'm missing drivers, the phone is Samsung.  Can anyone help me?  I've search a lot but couldn't find a solution.  Thanks.
50469
I have upgraded to Ubuntu 14.04LTS from 13.10. Before upgrade sound was working fine, but after that its not working. I tried solving this issue from a reference link     but still my problem is not resolved.
74063
Bluetooth earphones work fine until sleep. After resuming from sleep however, they appear to connect for a brief moment before disconnecting. On blueman, the error given is Resource temporarily unavailable. This issue arose only after updating to 18.04 LTS.   Here's the terminal output for lsusb:  Bus 001 Device 002: ID 8087:8001 Intel Corp.  Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 002 Device 004: ID 1bcf:0002 Sunplus Innovation Technology Inc.  Bus 002 Device 003: ID 04f2:b477 Chicony Electronics Co., Ltd  Bus 002 Device 002: ID 0a5c:21f1 Broadcom Corp. HP Portable Bumble Bee Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub