I've a laptop (Vaio VPCM13M1E) with ubuntu 14.04 installed. The sound of my laptop speakers works fine, but the sound of my headphones while playing a medium or through internet contains much noise. Although when I capture a screen (Ctrl + PrtSc) the sound is perfect.
Also when I do the Speaker Testing for Headphones
in System Settings
it is all good
So how can I make sure the audio from files or internet is played according the right settings?
alsa_utils
version is 1.0.27.2
and
aplay -l
gives
card 0: Intel [HDA Intel], device 0: ALC269VB Analog [ALC269VB Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
And lspci -v | grep -A7 -i "audio"
shows
00:1b.0 Audio device: Intel Corporation NM10/ICH7 Family High Definition Audio Controller (rev 01)
Subsystem: IBM Device 9075
Flags: bus master, fast devsel, latency 0, IRQ 41
Memory at feb00000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel modules: snd_hda_intel
00:1c.0 PCI bridge: Intel Corporation NM10/ICH7 Family PCI Express Port 1 (rev 01) (prog-if 00 [Normal decode])
And cat /proc/asound/cards
shows:
0 [Intel ]: HDA-Intel - HDA Intel
HDA Intel at 0xfeb000000 irq 41
Following this bug report, I've added the following lines to /etc/modprobe.d/alsa-base.conf
alias snd-card-0 snd-hda-intel
options snd-card-0 index=0
options snd-hda-intel model=vaio
Rebooted and applied sudo alsa force-reload
, but the sound of mediums and through internet keeps containing noise. Any advice?