I had a similar problem - no sound input device driver detected. I used pavucontrol, as explained here and it solved the problem:
Install pavucontrol: sudo apt-get install pavucontrol
Run: sudo pavucontrol
Go to the "Input Devices" tab
Click the lock icon to unlock the channels
Under "Port", select the correct microphone (front or rear)
Also of use is loading the the module module-switch-on-connect. If you add the line
to /etc/pulse/default.pa (as su, of course), this should happen automatically without having to call a script.
The problem can be from several factors which can be related to the Ubuntu system, hardware of the PC, cables used to connect to the sound (Headphone, Cable PC-to-TV, etc..) or the actual device that is connected to the PC (TV, Big Speakers, Home theater systems)
Here are the steps to check who has the fault. Let us start with Ubuntu (From the Inside to the ...
The most probable cause of constant noise coming in from the speakers is usually mic boost. In order to disable this:
Open a terminal.
Type alsamixer and press Enter.
Reduce the Mic Boost and Internal Mic Boost to zero. Refer to screenshot.
Routing sound to different sinks with PulseAudio
Yes this is possible, but you need more than one soundcard (PulseAudio calls these sinks) for this to work. Don't worry, if you have something like a headset that is connected via Bluetooth or USB, then this also counts as another soundcard.
Using the PulseAudio GUI
While you can configure PulseAudio from ...
I tried the Xonar U7 on Mint 16 (based on Ubuntu 13.10) and it works fine (I haven't tried multi-channel though). Absolutely no noise, the sound is perfect with alsa k3.11.0-12-generic, alsamixer v220.127.116.11 and pulseaudio 4.0.
On 29th January the alsa-wiki page provided in the first post was updated, and now the Xonar U7 is supported. With the alsamixer is ...
In most systems if not all, ACPI can handle this event. To test that:
Unplug & replug headphones, example output: (mic/ears share in same jack on my laptop)
jack/headphone HEADPHONE unplug
jack/microphone MICROPHONE unplug
jack/headphone HEADPHONE plug
jack/microphone MICROPHONE plug
Put your-script.sh in /etc/acpi/
Add an event ...
I experienced the same problem and I have written a post about the solution I found here. Basically what I did was this:
Open the file /etc/pulse/default.pa by typing the following in a terminal:
gksudo gedit /etc/pulse/default.pa
Change the line that says
load-module module-udev-detect ignore_dB=1
Save and close ...
You can install a synthesizer from the Software Centre such as Bristol
as well as a program to route midi commands from the keyboard to the synth, such as Jack Control.
Midi can either go over two different protocols, ALSA or Jack and Jack Control handles both. Bristol, by default, uses ALSA. Jack Control opens several windows and can look a bit forbidding ...
try this in terminal for no sound:
sudo alsa force-reload
restart device and check if sound is workin?
if it doesnt do this:
sudo apt-get remove --purge alsa-base pulseaudio
sudo apt-get install alsa-base pulseaudio
Restart device and check ..This should probably do the job!
When I looked through the list of loaded kernel modules on my system:
lsmod | less
I found this:
snd_ens1370 21536 0
gameport 16776 1 snd_ens1370
snd_ak4531_codec 9856 1 snd_ens1370
snd_pcm 80388 5 snd_ens1370,snd_intel8x0,snd_ac97_codec
There was no doubt in my mind - I needed to stop the kernel from loading the module ...
Open a terminal and issue the command alsamixer you will get a screen like this:
use the right arrow to highlight the Front Microphone
if it's muted as shown above, hit the 'M' key to toggle Mute off.
then use the up arrow to increase the gain (sensitivity) your end result should look similar to this. Hit the Esc key to exit. Your Microphone should now ...
Had the same problem. Solved it like this:
Run pavucontrol from the terminal window.
Check microphone level and mute switch in tab Input Devices.
Open tab Recording.
In parallel, start the recording function in the wanted application. E.g. press record in Audacity or start a test call in Skype.
In the Recording tab of pavucontrol, now a source ...
I added the following to /etc/rc.local
echo 1 | tee /sys/module/snd_hda_intel/parameters/power_save
echo Y | tee /sys/module/snd_hda_intel/parameters/power_save_controller
And it seems to have done the trick...
My experience with the Xonar U3 and 11.10 on a Samsung RV511 laptop has been very good.
Installation is dead simple, just plug in and go to Sound Preferences (right click on Sound icon) and the hardware, input and output tabs selecting in turn the USB Advanced Audio Device. And there you have it, a noticeably improved sound output, haven't used the Xonar ...
In theory, this should be handled by 'PulseAudio Volume Control'. There is a button to select a device as the default device, though imho poorly titled as 'Set as fallback'. More info about this feature here: http://ubuntuguide.org/wiki/Ubuntu_Oneiric_Hardware
Unfortunately the feature doesn't work. As soon as a USB audio device is unplugged the setting as ...
The following is the correct way:
Issue the arecord -L command.
Look for the plughw values which corresponds to your hardware. Please note that plughw represents a hardware which has been plugged into the computer.
Crosscheck the values in /dev/snd/by-id directory.
When you unplug the webcam(s), the by-id sub directory will vanish from the /dev/snd ...
Ubuntu Unity 14.04 - 64bit, Intel mobo and i7 processor. After switching sound cards, I had [much better] sound but my sound output choices (System Settings : Sound) disappeared. I needed that to switch to S/PDIF output. After much monkeying around without success, including all of the above suggestions and more, nothing worked. For no particular reason, ...
It is supported well as any USB-sound device. Long story: by default I've experienced problem with this sound card (clicking sound). After some investigations I found the problem (wrong sample rate) and here is the solution:
By default sample rate has been was set to 44100 which is wrong for this card. To check your configuration run this:
You can blacklist its kernel module. You can do that by editing blacklist.conf
sudo vi /etc/modprobe.d/blacklist.conf
You should probably add something like this:
alias radeon off
alias lbm-radeon off
That will blacklist ATIs proprietary driver (fglrx) as well as its opensource counterpart.
Ok, how about using ...
Perseverance pays. I found this lovely patch posted at:
I now can set the device in System Settings>Sound to 5.1 Digital Audio, get discrete channels sent to my receiver via PCM and the resulting audio is at the correct speed/pitch. Tested playback with 5.1 wav files and a couple DVDs...so far so ...
snd-cs46xx is a Linux kernel module supporting Cirrus Logic's Sound Fusion CS46xx audio controllers. It is an ALSA driver included in the Linux kernel.
At linux-2.6 2.6.23-1, the binary-only firmware in this driver was removed (see the package changelog), due to discovered firmware licensing issues. The driver was disabled at this time. Firmware was also ...
I posted the same question on Launchpad. Here was the answer I received from Mark Rijckenberg:
Please run the following command in a Terminal session:
gksudo gedit /etc/modprobe.d/alsa-base.conf
Using the gedit editor, add this line in the
options snd-hda-intel model=dell-m6-dmic
Save the change, close ...
It seems to be output sound card problem. Sound card automaticly change to hdmi output when 2 application conflicted with it. I fix that with run. It restore output to analog, again.
alsactl -F restore