Hello everyone.. This solution solved my problem for Conexant CX20549 (Venice) and volume is proper now... Hope this helps...
http://askubuntu.com/questions/128614/volume-range-is-narrow-in-12-04 Below is the post. *************************************************************************** This is probably due to a bug in alsa with the 3.2 kernel and the way it recognizes the hardware. As alsa gets is wrong, it cannot communicate correctly with Pulse Audio. It has been reported that this is fixed in the 3.3 kernel. In the meantime, the work around is to setup the hardware manually. This is documented in the Ubuntu Community Help Wiki, but as the wiki claims to be outdated, and covers more that the problem at hand, the valid points are as follows: Edit the file /etc/modprobe.d/alsa-base.conf as root using the editor of your choice. Add the line options snd-hda-intel model=[Your Model Specifier] to the end of the file if it doesn't already exist. If this option is already specified, you simply need to change the model to the appropriate one. Save the file and Reboot for the changes to take effect. The hard part is finding out which model to specify. You can find which hardware you are using with cat /proc/asound/card0/codec* | grep Codec at the terminal. If you get multiple lines of output you will need to determine which sound card is giving you trouble. You can then lookup the resulting hardware in the file /usr/share/doc/alsa-base/driver/HD-Audio-Models.txt.gz. As this file is compressed, you can uncompress it with gzip -dc /usr/share/doc/alsa-base/driver/HD-Audio-Models.txt.gz > HD-Audio-Models.txt this will create a new uncompressed file in the current directory. The difficulty for me was that my hardware (Conexant CX20549 (Venice)) is not on the list. Evidently, this is the same as the Conexant 5045 so the Model Option Line for my hardware is: options snd-hda-intel model =laptop-hpmicsense. For those wondering, the hp-part in laptop- hpmicsense has nothing to do with the brand hewlet packard. Once I put everything together, made the relevant changes and rebooted, everything works fine. *************************************************************************************************** ** Changed in: alsa-driver (Ubuntu) Status: In Progress => Invalid ** Converted to question: https://answers.launchpad.net/ubuntu/+source/alsa-driver/+question/216822 -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to alsa-driver in Ubuntu. https://bugs.launchpad.net/bugs/993677 Title: Volume output very low unless raised above 80%. [HP Pavilion dv6000 (GA443UA#ABA), Conexant CX20549 (Venice), Speaker, Internal] Playback problem Status in “alsa-driver” package in Ubuntu: Invalid Bug description: none ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: alsa-base 1.0.25+dfsg-0ubuntu1 ProcVersionSignature: Ubuntu 3.2.0-24.37-generic-pae 3.2.14 Uname: Linux 3.2.0-24-generic-pae i686 NonfreeKernelModules: nvidia wl AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. ApportVersion: 2.0.1-0ubuntu7 Architecture: i386 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: NVidia [HDA NVidia], device 0: CONEXANT Analog [CONEXANT Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: rhino 1719 F.... pulseaudio /dev/snd/pcmC0D0p: rhino 1719 F...m pulseaudio Card0.Amixer.info: Card hw:0 'NVidia'/'HDA NVidia at 0xb0000000 irq 21' Mixer name : 'Conexant CX20549 (Venice)' Components : 'HDA:14f15045,103c30b7,00100100' Controls : 18 Simple ctrls : 9 Date: Wed May 2 19:14:08 2012 InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release i386 (20120423) PackageArchitecture: all ProcEnviron: TERM=xterm PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: alsa-driver Symptom: audio Symptom_AlsaPlaybackTest: ALSA playback test through plughw:NVidia failed Symptom_Card: Built-in Audio - HDA NVidia Symptom_Jack: Speaker, Internal Symptom_Type: None of the above Title: [HP Pavilion dv6000 (GA443UA#ABA), Conexant CX20549 (Venice), Speaker, Internal] Playback problem UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 03/09/2009 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: F.42 dmi.board.name: 30B7 dmi.board.vendor: Quanta dmi.board.version: 65.2C dmi.chassis.type: 10 dmi.chassis.vendor: Quanta dmi.chassis.version: N/A dmi.modalias: dmi:bvnHewlett-Packard:bvrF.42:bd03/09/2009:svnHewlett-Packard:pnHPPaviliondv6000(GA443UA#ABA):pvrRev1:rvnQuanta:rn30B7:rvr65.2C:cvnQuanta:ct10:cvrN/A: dmi.product.name: HP Pavilion dv6000 (GA443UA#ABA) dmi.product.version: Rev 1 dmi.sys.vendor: Hewlett-Packard rhino@rhino-HP-Pavilion-dv6000-GA443UA-ABA:~$ wget -O alsa-info.sh http://www.alsa-project.org/alsa-info.sh && chmod +x ./alsa-info.sh && ./alsa-info.sh --2012-05-05 08:32:44-- http://www.alsa-project.org/alsa-info.sh Resolving www.alsa-project.org (www.alsa-project.org)... 77.48.224.243 Connecting to www.alsa-project.org (www.alsa-project.org)|77.48.224.243|:80... connected. HTTP request sent, awaiting response... 302 Found Location: http://git.alsa-project.org/?p=alsa-driver.git;a=blob_plain;f=utils/alsa-info.sh [following] --2012-05-05 08:32:45-- http://git.alsa-project.org/?p=alsa-driver.git;a=blob_plain;f=utils/alsa-info.sh Resolving git.alsa-project.org (git.alsa-project.org)... 77.48.224.243 Reusing existing connection to www.alsa-project.org:80. HTTP request sent, awaiting response... 200 OK Length: unspecified [text/plain] Saving to: `alsa-info.sh' [ <=> ] 27,247 36.7K/s in 0.7s 2012-05-05 08:32:47 (36.7 KB/s) - `alsa-info.sh' saved [27247] WARNING: All config files need .conf: /etc/modprobe.d/alsa-base.conf.save, it will be ignored in a future release. WARNING: /etc/modprobe.d/alsa-base.conf.save line 42: ignoring bad line starting with 'r#' ALSA Information Script v 0.4.60 -------------------------------- This script visits the following commands/files to collect diagnostic information about your ALSA installation and sound related hardware. dmesg lspci lsmod aplay amixer alsactl /proc/asound/ /sys/class/sound/ ~/.asoundrc (etc.) See './alsa-info.sh --help' for command line options. WARNING: All config files need .conf: /etc/modprobe.d/alsa-base.conf.save, it will be ignored in a future release. WARNING: /etc/modprobe.d/alsa-base.conf.save line 42: ignoring bad line starting with 'r#' Automatically upload ALSA information to www.alsa-project.org? [y/N] : y Uploading information to www.alsa-project.org ... Done! 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