Public bug reported:
Trying Ubuntu 8.04 beta (was just updated) on my notebook (ASUS A3f. intel
945GM w/ realtek/HDA). I`ve noticed that sound isn`t very loud and tried to
adjust the volume. The main Vol. fader makes no effect. The real regulation is
seems to be made with Line In fader, and there`s settings which makes the
output overload (near the mid position, if higher the sound is disabled). PCM-2
fader cannot be moved, it jumps into full on after release. This is when the
OSS ALC660 (?) mixer is used. When switched to ALSA PCM ALC861 front playback,
the only MAster vol. fader is there and works.
Sound was produced with Flash plugin in Seamonkey. All system outputs was set
to PulseAudio.
Same thing happened when playng mp3`s with Audacious if the ALSA output
was used. Audacious vol. fader wasn`t fuctional. When switched to Pulse
audio output plugin this fader works.
I remember similar behaviour with ALSA on previous ubuntu versions and
wonder this bug is still here.
So, there`s something wrong with outputs. Also It`s unclear why OSS mixer ever
works while PulseAudio is used, there`s too few controls with ALSA and the
whole thing looks strange.
I expect all the faders work as they named and positions is correct. Also there
must be some distinction between used sound systems.
hal-device output is in attach
** Affects: ubuntu
Importance: Undecided
Status: New
** Tags: alsa audio pulseaudio
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Incorrect audio mixer behaviour
https://bugs.launchpad.net/bugs/210227
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