Lack of sound

[Sharon Kimble <skimble04@gmail.com>]

I have a problem with playing sound at present, I hear faint music
when watching a film out of the left ear [with earphones, my preferred
choice] and nothing out of the right ear. I've turned up all speakers
that I can find to their maximum, but with no appreciable gain.

The relevant part of ....... sudo lspci -v ........ shows :-
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
00:09.0 Multimedia audio controller: C-Media Electronics Inc CM8738 (rev 10)
	Subsystem: C-Media Electronics Inc CMI8738/C3DX PCI Audio Device
	Flags: bus master, medium devsel, latency 32, IRQ 10
	I/O ports at d000 [size=256]
	Capabilities: [c0] Power Management version 2
	Kernel driver in use: C-Media PCI
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
and ..............  sudo aplay -l   ...................... shows;-
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
**** List of PLAYBACK Hardware Devices ****
card 0: CMI8738 [C-Media CMI8738], device 0: CMI8738-MC6 [C-Media PCI DAC/ADC]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: CMI8738 [C-Media CMI8738], device 1: CMI8738-MC6 [C-Media PCI 2nd DAC]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: CMI8738 [C-Media CMI8738], device 2: CMI8738-MC6 [C-Media PCI IEC958]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: V8235 [VIA 8235], device 0: VIA 8235 [VIA 8235]
  Subdevices: 4/4
  Subdevice #0: subdevice #0
  Subdevice #1: subdevice #1
  Subdevice #2: subdevice #2
  Subdevice #3: subdevice #3
card 1: V8235 [VIA 8235], device 1: VIA 8235 [VIA 8235]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

I had pulseaudio installed but removed it on the advice of a trusted
source on IRC, and am now using alsa. The problem occurred when we
were trying to debug a problem with playing mp4 films on VLC, my
preferred programme for playing and watching films.

I need to have sound fully working for Christmas so that my son can
watch and listen to his Christmas present. Can anyone help me out
please?

Thanks
Sharon.
-- 
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