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No mic working, rest OK: Firstly, check if muting one of two microphone channels makes a difference. Enable the volume sliders through Edit->Preferences in gnome volume control. As a result, the correct volume sliders might not be visible. Mixer doesn't seem to work: The HD Audio standard has many output channels. The same applies to the gnome volume control program. You may need to right click on the volume control applet in your gnome-panel and go to the preferences and change the device to the one called Alsa Mixer. Wrong mixer in use: Sometimes the volume control chooses the OSS mixer if the compatibility module is loaded. If one of those worked but was not autodetected, you can help the alsa developers by sending them the output of lspci -nv and the model you used on Alsa BTS. To find your codec use this command from a terminal: Note that this list is ordered on modules and codec chips.
SIGMATEL AUDIO DRIVER FOR LINUX FULL
The full list of models is available in ALSA-Configuration.txt in the subdirectory /alsa-kernel/Documentation/ of the alsa-driver-1.0.14 directory you created. Try either "probe_mask=1" or "probe_mask=8" by adding a line like:įor detailed information about this problem, see More Notes on HD-Audio Driver by Takashi Iwai, section 2.2. Looking at the ALSA-Configuration.txt this corresponds to model basic, so I addedĪt the end of /etc/modprobe.d/alsa-base and rebooted.Īnother possible option is the 'probe_mask' parameter, which has been known to fix sound issues characterized by the occurrence of "azx_get_response timeout, switching to single_cmd mode" messages reported with 'dmesg'. (and/or by looking into Vista Control Panel (Sound)). I actually found out that my Realtek audio codec was ALC269 by typing I'd like to add an example to clarify: my mic did not work under Ubuntu (whereas playback did and the mic itself worked under Vista). Suitable options for many popular laptop models can be found in this forum thread Then paste the following line at the end of the file (change MODEL with the type of sound card's model, in our example it should be "acer" (without quotation marks)):
![sigmatel audio driver for linux sigmatel audio driver for linux](http://linux-sound.org/images/blog/full-size/6-alsamixergui.png)
Sound disappears when touching volume controls.However, the following problems might occur on some setups: Most cards seem to work as of Ubuntu 9.04 or later using the stock kernel. Then try solving the problem using the instructions below. It is called "HD Audio Controller", "Azalia Audio" or similar. If your boot hangs on loading the module for snd-hda-intel, try disabling the card in your BIOS. Please refer to the official sound debugging guide and Ubuntu Audio Development team's pages for more up-to-date information. dmesg shows "disagrees about version of symbol" and "Unknown symbol" for snd_ctl_add, etcĪs of 2012, much of the information on this page is outdated.