Hello.
This is with Gentoo, kernel 3.10.7, alsa-lib 1.0.27.2.
The sound card is:
# /usr/sbin/lspci
00:1b.0 Audio device: Intel Corporation 7 Series/C210 Series Chipset
Family High Definition Audio Controller (rev 04)
and aplay -L gives
# aplay -L
sysdefault:CARD=PCH
HDA Intel PCH, ID 269 Analog
Default Audio Device
When I play an audio file, the sound comes out on the internal speaker.
The 3.5mm jack connector is a 4-pole one, it embeds both speakers and
microphone.
If I connect a standard, 3-pole headphone on it, the sound comes out
hissing as if some medium frequencies were left out. The sibilants
(esses) are especially hard to bear, and the audio sounds 'hollow'.
I have tested with a Live USB of Xubuntu Precise, and the headphones
work perfectly, so it's not a hardware issue.
Thanks for any info.
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