Public bug reported: The latest update causes sound to play through both connected speakers / headphones and the internal speaker. No amount of playing with the gnome sound control tool causes the sound to come out of only one device.
Playing with alsamixer, I came up with a setting that works. I have attached two screenshots (good.png and bad.png) to show two different alsamixer configurations. The good is what I currently have and the bad is what happens if I bump the volume button on my keyboard. The bad.png demonstrates sound coming very loudly out of both the internal speaker and the headphones at the same time. Please note that the reason that it comes out very loudly is likely related to bug: 149622 which was also a problem in 11.10. I am hoping that I can help get to the bottom of both of these bugs during this testing period. Description: Ubuntu precise (development branch) Release: 12.04 alsa-base: Installed: 1.0.24+dfsg-0ubuntu3 Candidate: 1.0.24+dfsg-0ubuntu3 Version table: *** 1.0.24+dfsg-0ubuntu3 0 500 http://ca.archive.ubuntu.com/ubuntu/ precise/main i386 Packages 100 /var/lib/dpkg/status pulseaudio: Installed: 1:1.1-0ubuntu5 Candidate: 1:1.1-0ubuntu5 Version table: *** 1:1.1-0ubuntu5 0 500 http://ca.archive.ubuntu.com/ubuntu/ precise/main i386 Packages 100 /var/lib/dpkg/status 00:00.0 Host bridge: Intel Corporation 82945G/GZ/P/PL Memory Controller Hub (rev 02) 00:01.0 PCI bridge: Intel Corporation 82945G/GZ/P/PL PCI Express Root Port (rev 02) 00:02.0 VGA compatible controller: Intel Corporation 82945G/GZ Integrated Graphics Controller (rev 02) 00:02.1 Display controller: Intel Corporation 82945G/GZ Integrated Graphics Controller (rev 02) 00:1c.0 PCI bridge: Intel Corporation N10/ICH 7 Family PCI Express Port 1 (rev 01) 00:1c.1 PCI bridge: Intel Corporation N10/ICH 7 Family PCI Express Port 2 (rev 01) 00:1d.0 USB controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #1 (rev 01) 00:1d.1 USB controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #2 (rev 01) 00:1d.2 USB controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #3 (rev 01) 00:1d.3 USB controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #4 (rev 01) 00:1d.7 USB controller: Intel Corporation N10/ICH 7 Family USB2 EHCI Controller (rev 01) 00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev e1) 00:1e.2 Multimedia audio controller: Intel Corporation 82801G (ICH7 Family) AC'97 Audio Controller (rev 01) 00:1f.0 ISA bridge: Intel Corporation 82801GB/GR (ICH7 Family) LPC Interface Bridge (rev 01) 00:1f.1 IDE interface: Intel Corporation 82801G (ICH7 Family) IDE Controller (rev 01) 00:1f.2 IDE interface: Intel Corporation N10/ICH7 Family SATA Controller [IDE mode] (rev 01) 00:1f.3 SMBus: Intel Corporation N10/ICH 7 Family SMBus Controller (rev 01) 02:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5751 Gigabit Ethernet PCI Express (rev 01) ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: pulseaudio 1:1.1-0ubuntu5 ProcVersionSignature: Ubuntu 3.2.0-12.21-generic 3.2.2 Uname: Linux 3.2.0-12-generic i686 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. ApportVersion: 1.91-0ubuntu1 Architecture: i386 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: david 1536 F.... pulseaudio david 13859 F.... alsamixer /dev/snd/pcmC0D0p: david 1536 F...m pulseaudio Card0.Amixer.info: Card hw:0 'ICH7'/'Intel ICH7 with AD1981B at irq 23' Mixer name : 'Analog Devices AD1981B' Components : 'AC97a:41445374' Controls : 28 Simple ctrls : 20 CurrentDmesg: [ 42.184011] eth0: no IPv6 routers present [ 2513.909803] audit_printk_skb: 27 callbacks suppressed [ 2513.909809] type=1400 audit(1328159212.259:27): apparmor="STATUS" operation="profile_replace" name="/usr/lib/cups/backend/cups-pdf" pid=13267 comm="apparmor_parser" [ 2513.910472] type=1400 audit(1328159212.259:28): apparmor="STATUS" operation="profile_replace" name="/usr/sbin/cupsd" pid=13267 comm="apparmor_parser" Date: Wed Feb 1 23:12:28 2012 InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012) SourcePackage: pulseaudio UpgradeStatus: Upgraded to precise on 2012-01-25 (8 days ago) dmi.bios.date: 03/31/2006 dmi.bios.vendor: Dell Inc. dmi.bios.version: A07 dmi.board.name: 0ND237 dmi.board.vendor: Dell Inc. dmi.chassis.type: 3 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA07:bd03/31/2006:svnDellInc.:pnOptiPlexGX620:pvr:rvnDellInc.:rn0ND237:rvr:cvnDellInc.:ct3:cvr: dmi.product.name: OptiPlex GX620 dmi.sys.vendor: Dell Inc. ** Affects: pulseaudio (Ubuntu) Importance: Undecided Status: New ** Tags: apport-bug i386 precise running-unity -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/925287 Title: intel ich7 sound comes out of internal speaker and headphones simultaneously To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/925287/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs