[AV200 - Xonar STX, playback] Loud pop when switching to headphones
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
alsa-driver (Ubuntu) |
Confirmed
|
Undecided
|
Unassigned | ||
linux (Ubuntu) |
Confirmed
|
Undecided
|
Unassigned |
Bug Description
When switching the port to either headphone ports from the speaker port there is a loud pop in the headphones. When I am playing music through the speakers at 100% volume and then switch, I can hear the music at a very loud volume through the headphones for a fraction of a second before dropping to the proper headphones volume which is much lower. Even if I mute the output before switching ports there is still a pop although not nearly as loud.
I believe this is a driver issue (oxygen/virtuoso). The Essense STX uses a relay to switch between the speaker and headphones ports. I am guessing the the power for the speaker (line out) port is much higher than that used for the headphones port and the drivers need to mute the sound at a hardware level before switching to elmininate the pop. On Windows when switching to and from speaker and headphones port the output would be muted for almost a second as the port was switched so there was no pop. On Ubuntu there is no delay when switching ports. I have looked at the driver source code and there is an anti_pop_delay of 800 milliseconds used on the Xonar init method. I think this same delay should probably be added when switching to the headphone ports.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: alsa-base 1.0.25+
ProcVersionSign
Uname: Linux 3.13.0-37-generic x86_64
NonfreeKernelMo
ApportVersion: 2.14.1-0ubuntu3.5
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
/dev/snd/
/dev/snd/pcmC0D0p: michael 20842 F...m pulseaudio
/dev/snd/
CurrentDesktop: Unity
Date: Sat Oct 11 22:50:15 2014
InstallationDate: Installed on 2014-10-07 (3 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
PackageArchitec
SourcePackage: alsa-driver
Symptom: audio
Symptom_
Symptom_Card: HD Webcam C910 - USB Device 0x46d:0x821
Symptom_
Symptom_Type: None of the above
Title: [AV200 - Xonar STX, playback] Playback problem
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/20/2013
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1401
dmi.board.
dmi.board.name: P8H77-M PRO
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev X.0x
dmi.chassis.
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.
dmi.modalias: dmi:bvnAmerican
dmi.product.name: System Product Name
dmi.product.
dmi.sys.vendor: System manufacturer
---
ApportVersion: 2.14.1-0ubuntu3.5
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
/dev/snd/
/dev/snd/
CurrentDesktop: Unity
DistroRelease: Ubuntu 14.04
HibernationDevice: RESUME=
InstallationDate: Installed on 2014-10-07 (5 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
IwConfig:
eth0 no wireless extensions.
lo no wireless extensions.
MachineType: System manufacturer System Product Name
NonfreeKernelMo
Package: linux (not installed)
ProcFB: 0 VESA VGA
ProcKernelCmdLine: BOOT_IMAGE=
ProcVersionSign
RelatedPackageV
linux-
linux-
linux-firmware 1.127.7
RfKill:
Tags: trusty trusty
Uname: Linux 3.13.0-37-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 08/20/2013
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1401
dmi.board.
dmi.board.name: P8H77-M PRO
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev X.0x
dmi.chassis.
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.
dmi.modalias: dmi:bvnAmerican
dmi.product.name: System Product Name
dmi.product.
dmi.sys.vendor: System manufacturer
tags: | added: kernel-sound |
This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:
apport-collect 1380046
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the Ubuntu Kernel Team.