Public bug reported:
Binary package hint: indicator-sound
When using the applet to change the volume of the system, i've noticed
that first my front speakers reduce sound and then the surround ones. I
have checked with alsamixer open while using the applet and it does
change the volume of the front speakers first, then the surround, center
and lfe speakers.
Also, it seems to slighltly change the volume of the PCM channel up and
down (99-100-98-100-98... etc), and when the slider is up to 100% high
frequencies cause a terrible tinny noise (think of a highly compressed
mp3 file), which can be fixed by turning the PCM channel manually with
alsamixer down to 98-96. Of course this happens again if changing the
volume with the applet.
I have had this issue already in 9.10 and i waited 10.04 to see if this
issue would disappeared, or if it was somehow caused by any
misconfiguration on my side. Made a clean installation (even moved away
all my config files and it persists).
lsb_release -rd
Description: Ubuntu 10.04 LTS
Release: 10.04
uname -a:
Linux XXX 2.6.32-22-generic #33-Ubuntu SMP Wed Apr 28 13:28:05 UTC 2010 x86_64
GNU/Linux
lshw -c multimedia:
*-multimedia
description: Audio device
product: 82801JI (ICH10 Family) HD Audio Controller
vendor: Intel Corporation
physical id: 1b
bus info: p...@0000:00:1b.0
version: 00
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list
configuration: driver=HDA Intel latency=0
resources: irq:22 memory:f9ff8000-f9ffbfff
lspci:
00:1b.0 Audio device: Intel Corporation 82801JI (ICH10 Family) HD Audio
Controller
aplay -l:
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: VT1708S Analog [VT1708S Analog]
Subdevices: 1/2
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
card 0: Intel [HDA Intel], device 1: VT1708S Digital [VT1708S Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0
pulseaudio --version:
pulseaudio 0.9.21-63-gd3efa-dirty
** Affects: indicator-sound (Ubuntu)
Importance: Undecided
Status: New
--
Using indicator-sound to change volume changes volume non-uniformly across
channels and causes "tinny" sound
https://bugs.launchpad.net/bugs/574580
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