More information : Problem : Clipping noise - Volume goes down and up fast randomly
In video : http://www.youtube.com/watch?v=8v-eYcQ_gqo&feature=youtu.be Not HD and hard to see but you should be able to see those 3 windows : 1) alsamixer : Surround, Center, LFE and Side goes to 0 and backup to 100 in a split second 2) pavucontrol : Output Devices / Port : this one switches to Headphones and back to Analog Output very fast 3) KDE / System Settings / Multimedia / Phonon / Audio Hardware Setup / Device Configuration : Here it's the Connector that is switching to Headphones then back to Analog Output very fast I uninstalled alsa and pulseaudio, same problem. I uninstalled kmix, problem disappear but I don't have sound anymore. I booted with Linux Mint 14 (both Mate and KDE), same problem right on the LiveCD. I have a dual-boot setup with Windows 7 and this one doesn't reproduce the same problem so there's no problem with my speakers or the cable. This is my motherboard : http://ca.gigabyte.com/products/product- page.aspx?pid=4139#sp lspci -nn | grep -i audio 00:1b.0 Audio device [0403]: Intel Corporation 7 Series/C210 Series Chipset Family High Definition Audio Controller [8086:1e20] (rev 04) cat /proc/asound/cards 0 [PCH ]: HDA-Intel - HDA Intel PCH HDA Intel PCH at 0xf7c30000 irq 47 -- 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/1067434 Title: Sound output device keeps changing when using headphones Status in “alsa-driver” package in Ubuntu: Confirmed Bug description: Recently upgraded to 12.10. Having issues with sound when using headphones plugged into the front ports. Something that doesn't happen when booting to windows - so fairly confident it's an Ubuntu issue. When listening to any sound, music, video etc the sound levels jump up and down and click. If I open "sound" from the settings menu when playing videos or music and viewing the "output" tab I can see "headphone - built-in audio disappear and reappear (very quickly) so I'm guessing the system is jumping back to the "analogue output" and back again which is why the sound volume changes and clicks. Worth noting I never used my headphones when 12.04 was installed so not sure if it's this OS or Ubuntu hates my hardware generally. Booted from live cd (usb) to 12.04 and there wasnt any issue. Anyone seen this before? any advice? Sound is built in to motherboard. I have the Gigabyte GA-X58A-UD5. ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: gnome-control-center 1:3.4.2-0ubuntu19 ProcVersionSignature: Ubuntu 3.5.0-17.28-generic 3.5.5 Uname: Linux 3.5.0-17-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.6.1-0ubuntu3 Architecture: amd64 Date: Tue Oct 16 18:07:44 2012 EcryptfsInUse: Yes ExecutablePath: /usr/bin/gnome-control-center InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425) ProcEnviron: LANGUAGE=en_GB:en PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_GB.UTF-8 SHELL=/bin/bash SourcePackage: gnome-control-center UpgradeStatus: Upgraded to quantal on 2012-09-29 (17 days ago) usr_lib_gnome-control-center: activity-log-manager-control-center 0.9.4-0ubuntu4 deja-dup 24.0-0ubuntu1 gnome-control-center-signon 0.0.18-0ubuntu1 indicator-datetime 12.10.2-0ubuntu3 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1067434/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
