Hello,
I have a problem - after one of the updates (sorry for being not precise - I can only track it back to the time I have been surely listening something on headphones - it has to be beginning of this year because last time I have been listening more on my SB Live for sure was in last one-two weeks of February 2019 - I have suddenly lost "stereo" on my headphones.
I have speakers connected to on-board sound card and headphones connected to SB Live Value for few years, so I did not mess with outputs or something - one day I changed Audacious output to SbLive in pavucontrol (as usually) and that time the sound was weirdly filtered.
I have found that this must be "surround upmix" which I do not need and tried to disable it,
enable-remixing = no and the same for "LFE remixing" in /etc/pulse/daemon.conf did not work.
It does not matter what configuration I choose in pavucontrol- analog stereo duplex, "analog stereo output", "Analog surround 5.1" or 4.1 - for all "Analog output" scenarios the output is the same except for "mono" (no sound at all).
I have tried do "skip" pulseaudio choosing "ALSA" output in Audacious + the alsa configuration for stereo but the upmix is still present.
I have followed the old thread in Launchpad Answers:
https://answers.launchpad.net/ubuntu/+source/alsa-driver/+question/169428
=====================================================
Hello,
i'm on ubuntu 16.04LTS (AMD64, with emu10k1 based soundcard) and since the last update I have similar problem - I have lost ability to listen stereo music on my Soundblaster Live Value (i use earphones).
Even system sounds , web browser content and mp3 files are up-mixed.
Few days ago it was no problem to choose "analag stereo output" in pavucontrol, now it seems that at this output have rear surround channel only (as I suppose, there is "stereo" but vocals are like heard from the other room and there is sometimes reverb as in the bathroom) :/.
I had tried adding "set enable-remixing=no" in both /etc/pulse/daemon.conf and in the home directory configuration file without success.
I have purged pulseaudio but with the ALSA there is the same problem, I have tried purging alsa and reinstalling without effect.
So i thought that it can be emu10k1 driver specific, after digging in the network for solutions I have had tried adding "hint.emu10kx.0.multichannel_disabled " to the module configuration file without visible (or rather soundible ;) effect.
I have tried to check EMU10K1 configuration with aweset, but it gives error message, so maybe the bad magic sits somewhere around?
aweset
/dev/sequencer: No such file or directory
Once again - everything worked fine until the last update. I use xubuntu desktop as my machine is quite old, in despair I have installed unity to find the sound settings / speaker configuration etc and button to "disable all effects" as I have seen somewhere, but there were no such options.
Help me Obi Wan Kenobi, you're my only hope...
=====================================================
I have next tried to follow the path from ubuntu sound troubleshooting guide, I have purged everything, installed back and now I'm here again with this "upmix" on SBLive! Value.
Thanks in advance for help :)
Tom
---
ApportVersion: 2.20.1-0ubuntu2.18
Architecture: amd64
CurrentDesktop: XFCE
DistroRelease: Ubuntu 16.04
HibernationDevice: RESUME=UUID=654027ee-6ab0-41ba-8537-452da07cda0e
InstallationDate: Installed on 2011-10-07 (2765 days ago)
InstallationMedia: Ubuntu 10.04.3 LTS "Lucid Lynx" - Release amd64 (20110720.1)
IwConfig:
lo no wireless extensions.
lxcbr0 no wireless extensions.
eth0 no wireless extensions.
MachineType: Gigabyte Technology Co., Ltd. M68MT-S2
Package: pulseaudio 1:8.0-0ubuntu3.10
PackageArchitecture: amd64
ProcFB: 0 nouveaufb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-146-generic root=UUID=4559c496-f083-41a2-ad7c-1e03334389fd ro plymouth usbcore.autosuspend=-1
ProcVersionSignature: Ubuntu 4.4.0-146.172-generic 4.4.177
RelatedPackageVersions:
linux-restricted-modules-4.4.0-146-generic N/A
linux-backports-modules-4.4.0-146-generic N/A
linux-firmware 1.157.21
RfKill:
Tags: xenial third-party-packages xenial
Uname: Linux 4.4.0-146-generic x86_64
UpgradeStatus: Upgraded to xenial on 2018-05-23 (344 days ago)
UserGroups: adm admin audio cdrom dialout lpadmin netdev plugdev pulse sambashare video
_MarkForUpload: True
dmi.bios.date: 11/15/2010
dmi.bios.vendor: Award Software International, Inc.
dmi.bios.version: F1
dmi.board.name: M68MT-S2
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.:bvrF1:bd11/15/2010:svnGigabyteTechnologyCo.,Ltd.:pnM68MT-S2:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnM68MT-S2:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr:
dmi.product.name: M68MT-S2
dmi.sys.vendor: Gigabyte Technology Co., Ltd.
modified.conffile..etc.pulse.daemon.conf: [modified]
modified.conffile..etc.pulse.default.pa: [modified]
mtime.conffile..etc.pulse.daemon.conf: 2019-04-28T09:08:23.861655
mtime.conffile..etc.pulse.default.pa: 2019-04-28T09:06:08.963227
Thanks for the bug report.
Firstly, please run this command to send us more information about the machine:
apport-collect 1827417
and in future you can avoid that by reporting bugs using the 'ubuntu-bug' command.
Secondly, it sounds to me that this regression would most likely have been the result of a kernel update, as audio regressions often are. So please try some older (or newer) kernels and see if you can find some that don't have the bug:
https:/