** Summary changed: - Sound buzzing (crackling) with HDA-Intel Sound card. + Sound buzzing (crackling) for sound Intel Corporation 82801G (ICH7 Family)
** Description changed: - Every playing sound have a buzz (crackle) while playing. You can see alsa-output from another bug: + Distorted sound for Intel Corporation 82801G (ICH7 Family) sound card. You can see alsa-output from another bug: https://bugs.launchpad.net/bugs/296011 Here is the link to the alsa-info.sh generated output (from thouse bug): http://www.alsa-project.org/db/?f=92d2b0197f25c747eb59842a0f2678a92dd6d160 There are the same kernel, same sound card (snd_hda_intel module), all the same (without any updates). 1) So after computer start up, i had sound crackling. Then i make 'alsa-info.sh' generated output. After that, i've edited /etc/modprobe.d/blacklist , commented last line: # low-quality, just noise when being used for sound playback, causes # hangs at desktop session start (Ubuntu: #246969) # blacklist snd_pcsp 2) Then i reboot system, and the sound was without any crackling. - 3) Another reboot return back into the same situation. So i uncommented (see 1) ) again blacklist module snd_pcsp. + 3) Another reboot return back into the same situation. So i've uncommented (see 1) it again (blacklist module snd_pcsp). 4) After reboot, there is the same crackling as in 1,3 cases. All 'alsa-info.sh' output are similar except the order of the loaded modules. May be this is the cause? File 'all' contain olny order of the sound modules for all cases. ** Description changed: - Distorted sound for Intel Corporation 82801G (ICH7 Family) sound card. You can see alsa-output from another bug: + Distorted sound for Intel Corporation 82801G (ICH7 Family) sound card. + $ lspci|grep Audio + 00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller (rev 02) + You can see alsa-output from another bug: https://bugs.launchpad.net/bugs/296011 Here is the link to the alsa-info.sh generated output (from thouse bug): http://www.alsa-project.org/db/?f=92d2b0197f25c747eb59842a0f2678a92dd6d160 There are the same kernel, same sound card (snd_hda_intel module), all the same (without any updates). 1) So after computer start up, i had sound crackling. Then i make 'alsa-info.sh' generated output. After that, i've edited /etc/modprobe.d/blacklist , commented last line: # low-quality, just noise when being used for sound playback, causes # hangs at desktop session start (Ubuntu: #246969) # blacklist snd_pcsp 2) Then i reboot system, and the sound was without any crackling. 3) Another reboot return back into the same situation. So i've uncommented (see 1) it again (blacklist module snd_pcsp). 4) After reboot, there is the same crackling as in 1,3 cases. All 'alsa-info.sh' output are similar except the order of the loaded modules. May be this is the cause? File 'all' contain olny order of the sound modules for all cases. ** Description changed: Distorted sound for Intel Corporation 82801G (ICH7 Family) sound card. + See also: + https://bugs.launchpad.net/bugs/291798 $ lspci|grep Audio 00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller (rev 02) You can see alsa-output from another bug: https://bugs.launchpad.net/bugs/296011 Here is the link to the alsa-info.sh generated output (from thouse bug): http://www.alsa-project.org/db/?f=92d2b0197f25c747eb59842a0f2678a92dd6d160 There are the same kernel, same sound card (snd_hda_intel module), all the same (without any updates). 1) So after computer start up, i had sound crackling. Then i make 'alsa-info.sh' generated output. After that, i've edited /etc/modprobe.d/blacklist , commented last line: # low-quality, just noise when being used for sound playback, causes # hangs at desktop session start (Ubuntu: #246969) # blacklist snd_pcsp 2) Then i reboot system, and the sound was without any crackling. 3) Another reboot return back into the same situation. So i've uncommented (see 1) it again (blacklist module snd_pcsp). 4) After reboot, there is the same crackling as in 1,3 cases. All 'alsa-info.sh' output are similar except the order of the loaded modules. May be this is the cause? File 'all' contain olny order of the sound modules for all cases. -- Sound buzzing (crackling) for sound Intel Corporation 82801G (ICH7 Family) https://bugs.launchpad.net/bugs/296310 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
