this problem still exists in Ubuntu 14.04. As best i can tell, the audio is being output to both channels as mono. I guess this falls in the too hard basket and i am the only person still using this gigabyte motherboard and ubuntu. oh well
-- 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/1237805 Title: [GA-MA78GM-S2H, Realtek ALC889A, Green Line Out, Rear] left-right channels output to both sides Status in “alsa-driver” package in Ubuntu: New Bug description: balance does work. when i move the balance to left, sound is louder on the left but can still be heard on right and vis-versa. i used the following test clip http://www.kozco.com/tech/LRMonoPhase4.wav left and right channels i hear on both sides, but the centre speaker test i only hear on the right channel. More info and asla-info dumps here. http://ubuntuforums.org/showthread.php?t=2171347 Happens on my Ubuntu 13.04 install, and also the boot cd from lubuntu 13.10. I don't have this problem if i plug the speakers into my laptop which uses alc663 chip. ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: alsa-base 1.0.25+dfsg-0ubuntu4 ProcVersionSignature: Ubuntu 3.8.0-31.46-generic 3.8.13.8 Uname: Linux 3.8.0-31-generic x86_64 ApportVersion: 2.9.2-0ubuntu8.3 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: stevo 18323 F.... pulseaudio Date: Thu Oct 10 09:06:48 2013 InstallationDate: Installed on 2013-08-26 (44 days ago) InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130421) MarkForUpload: True PackageArchitecture: all SourcePackage: alsa-driver Symptom: audio Symptom_Card: Built-in Audio - HDA ATI SB Symptom_Jack: Green Line Out, Rear Symptom_Type: Volume slider, or mixer problems Title: [GA-MA78GM-S2H, Realtek ALC889A, Green Line Out, Rear] volume slider problem UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 09/16/2009 dmi.bios.vendor: Award Software International, Inc. dmi.bios.version: F11 dmi.board.name: GA-MA78GM-S2H dmi.board.vendor: Gigabyte Technology Co., Ltd. dmi.board.version: x.x dmi.chassis.type: 3 dmi.chassis.vendor: Gigabyte Technology Co., Ltd. dmi.modalias: dmi:bvnAwardSoftwareInternational,Inc.:bvrF11:bd09/16/2009:svnGigabyteTechnologyCo.,Ltd.:pnGA-MA78GM-S2H:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnGA-MA78GM-S2H:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr: dmi.product.name: GA-MA78GM-S2H dmi.sys.vendor: Gigabyte Technology Co., Ltd. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1237805/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp