Sound probelm in applications, but hardware is fine

I’m new here and this is my first post, so bare with me.

I have a unsolved sound problem in ubuntu 18.04. It seems as if the hardware works fine since the speakers make a sound when I draw and drop the volume slider. All though, no sound works in any of the applications such as spotify or firefix. I also tried the “test sound”-function under settings but it doesnt make any sound.

If you need any more info, please tell me how to get it and Ill get back and edit this post. Really thankful for your help.

Best, Alexander

USB bluetooth controller still appears even though hardware no longer present

Machine is running 16.04 LTS, current on updates.

I had an IOGear USB bluetooth adapter. Worked reasonably well. At one point I pulled it out to give to my son. Like a fool I just yoinked it out hot. Now I have a replacement, a IOGear GBU521 (which I think was the same as the original). I can’t get it to work, and I am suspecting it’s because the machine insists the previous adapter is still present.

Here is lsusb:

Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 007 Device 002: ID 051d:0002 American Power Conversion Uninterruptible Power Supply Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 005 Device 002: ID 046d:c517 Logitech, Inc. LX710 Cordless Desktop Laser Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 009 Device 002: ID 05e3:0612 Genesys Logic, Inc.  Bus 009 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 008 Device 002: ID 05e3:0610 Genesys Logic, Inc. 4-port hub Bus 008 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 003: ID 058f:6362 Alcor Micro Corp. Flash Card Reader/Writer Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 003 Device 002: ID 0a5c:21e8 Broadcom Corp. BCM20702A0 Bluetooth 4.0 Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub 

and hciconfig:

hci0:   Type: BR/EDR  Bus: USB     BD Address: 00:02:72:C8:AC:34  ACL MTU: 1021:8  SCO MTU: 64:1     UP RUNNING      RX bytes:1038 acl:0 sco:0 events:63 errors:0     TX bytes:4962 acl:0 sco:0 commands:63 errors:0 

bluetoothctl list shows:

Controller 00:02:72:C8:AC:34 khym [default] 

The remove command in bluetoothctl does nothing (says “not available”).

I tried wiping the entries in /var/lib/bluetooth, but the entry for the phantom controller keeps returning. I also found and removed the firmware file /lib/firmware/brcm/BCM20702A1-0a5c-21e8.hcd.

Boot messages include:

Sep 12 23:11:17 khym kernel: Bluetooth: hci0: BCM: chip id 63 Sep 12 23:11:17 khym kernel: Bluetooth: hci0: khym Sep 12 23:11:17 khym kernel: Bluetooth: hci0: BCM20702A1 (001.002.014) build 0000 Sep 12 23:11:17 khym kernel: bluetooth hci0: Direct firmware load for brcm/BCM20702A1-0a5c-21e8.hcd failed with error -2 Sep 12 23:11:17 khym kernel: Bluetooth: hci0: BCM: Patch brcm/BCM20702A1-0a5c-21e8.hcd not found 

When I plug in the new adapter I get an appropriate entry in lsusb and hciconfig, but the gnome bluetooth panel doesn’t recognize it.

I’m thinking since the original controller worked without trouble, if I can get the machine to forget about it the new one should come up without further trouble.

A couple other notes: – This machine is somewhat old (core 2 duo) and currently has a dead CMOS battery so I get corrupted memory messages in my boot logs. Everything else works fine so I believe that isn’t relevant – Machine is using nvidia drivers for graphics (I know that was an issue years ago but is it still?)

I did a fair bit of searching, tried to infer where things are and how files should be based on posts of people getting their btusb to be recognized, but I haven’t come across anyone with the opposite problem!

Thanks in advance for any suggestions for further diagnosis!

ken

Wifi Hardware Switch Not Working on HP Pavilion 15-n201nr Notebook PC – Hardware Blocked

I have an HP Pavilion 15-n201nr Notebook PC which appears to be stuck in airplane mode under any version of Linux I install. (I have tried Ubuntu 19.04, 18.04, and Fedora Workstation 30.) This is definitely not a hardware issue as Windows 10 is also (necessarily) on the machine in a dual boot configuration. Under Windows 10, the Wifi is fully functional and can be switched on and off, at will, via the F12 key on the keyboard. This is highly perplexing to me because, a couple of years ago, I had a version of Linux Mint installed that was able to utilize the Wifi without any problem.

I have tried several techniques to fix this problem but nothing seems to be working. I am running out of ideas and really need some help.

Based on advice from other posts,Here are the approaches I have tried thus far:

Approach 1: Use rfkill to unblock wifi

I tried the following steps.

sudo rfkill list all

I see something like

0: phy0: Wireless LAN     Soft blocked: no     Hard blocked: yes 

sudo rfkill unblock wifi or, optionally… sudo rfkill unblock all

Press wireless button. (On the HP Pavilion, this is F12.)

Whenever I press a function key on the HP Pavilion, it always displays a little black panel with some text annotation referencing the key being pressed. When I press F12, whcih controls Wifi, it does pop up the little panel with the message “Harwdware Airplane…”, which indicates it is receiving the keypress, but nothing changes.

Then check the status again with…

sudo rfkill list all

… and, I still have

0: phy0: Wireless LAN     Soft blocked: no     Hard blocked: yes 

The result is always the same. It still shows as being hardware blocked.

Approach 2: Blacklist hp_wmi

I attempt to see if the hp_wmi module is loaded and then remove (blacklist) the same.

sudo lsmod | grep wmi

On Fedora I got …

hp_wmi                 16384  0 sparse_keymap          16384  1 hp_wmi rfkill                 28672  5 hp_wmi,cfg80211 wmi_bmof               16384  0 wmi                    36864  2 hp_wmi,wmi_bmof 

On Ubuntu 19.04, I get

snd_rawmidi            36864  1 snd_seq_midi snd_seq_device         16384  3 snd_seq,snd_seq_midi,snd_rawmidi snd                    81920  19 snd_hda_codec_generic,snd_seq,snd_seq_device,snd_hda_codec_hdmi,snd_hwdep,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek,snd_timer,snd_pcm,snd_rawmidi hp_wmi                 16384  0 sparse_keymap          16384  1 hp_wmi wmi_bmof               16384  0 wmi                    28672  2 hp_wmi,wmi_bmof 

So, I try to kill the hp_wmi

sudo modprobe -r hp_wmi

Afterwards, I have …

snd_rawmidi            36864  1 snd_seq_midi snd_seq_device         16384  3 snd_seq,snd_seq_midi,snd_rawmidi snd                    81920  19 snd_hda_codec_generic,snd_seq,snd_seq_device,snd_hda_codec_hdmi,snd_hwdep,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek,snd_timer,snd_pcm,snd_rawmidi wmi_bmof               16384  0 wmi                    28672  1 wmi_bmof 

After rebooting to restart the services, I find the issue is still there and there is no Wifi.

More Specifics on the Machine

  • HP Pavilion 15-n201nr Notebook PC
  • Product Number: F5Y75UAR#ABA
  • System Board: 216F
  • BIOS: F.20
  • Wifi: Internal Realtek RT3270

https://support.hp.com/us-en/document/c04030181

What can I possibly do to get Wifi working on this laptop? Any help is greatly appreciated.

hardware, mutlichannel sound, ardour 5, ubuntu studio 17.04

I would greatly appreciate some advice on hardware for relatively hi-fi multichannel audio on ubuntu studio

I’m running ubuntu studio 17.04 on a thinkpad w520. I use Ardour 5 to write electroacoustic music & would like to move from working in stereo to writing pieces for a 4 speaker (& eventually 8 speaker) home studio setup.

I’ve heard a lot of people recommending hdmi but my thinkpad has no hdmi port so it seems like an external usb soundcard is my best option.

here’s my soundcard information that i got from running this command in terminal: lspci -v | grep -i audio

00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 04) Subsystem: Lenovo 6 Series/C200 Series Chipset Family High Definition Audio Controller

I’m posting here because I feel lost about which usb soundcard to get & also because I wanted to touch base to check if there are other better options than a usb soundcard for my current setup.

Thanks so much for your help!