Simple mixer control 'IEC958 Default PCM',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [on]


this should be OFF if you are using HDMI device




[   19.884842] [drm] Initialized drm 1.1.0 20060810
[   19.945827] [drm] Memory usable by graphics device = 512M
[   19.945843] i915 0000:00:02.0: setting latency timer to 64
[   19.946928] i915 0000:00:02.0: irq 46 for MSI/MSI-X
[   19.946944] [drm] Supports vblank timestamp caching Rev 1 (10.10.2010).
[   19.946946] [drm] Driver supports precise vblank timestamp query.
[   19.947029] vgaarb: device changed decodes: 
PCI:0000:00:02.0,olddecodes=io+mem,decodes=io+mem:owns=io+mem
[   19.947337] [drm] Skipping LVDS initialization for Dell Studio Hybrid

the drm messages in your system log are different from those in

https://bugs.freedesktop.org/show_bug.cgi?id=48157

[drm:drm_detect_monitor_audio], Monitor has basic audio support
[drm:intel_sdvo_debug_write], SDVOB: W: 7A 02                      
(SDVO_CMD_SET_CONTROL_BUS_SWITCH)
[drm:intel_sdvo_debug_write], SDVOB: W: 7A 02                      
(SDVO_CMD_SET_CONTROL_BUS_SWITCH)
[drm:intel_sdvo_debug_write], SDVOB: W: 7A 02                      
(SDVO_CMD_SET_CONTROL_BUS_SWITCH)
[drm:intel_sdvo_connector_matches_edid], connector_is_digital? 1, 
monitor_is_digital? 1



drm:drm_crtc_helper_set_config], [CONNECTOR:8:HDMI-A-1] to [CRTC:3]
Console: switching to colour frame buffer device 160x45
[drm:drm_crtc_helper_set_config], 
[drm:drm_crtc_helper_set_config], [CRTC:3] [FB:16] #connectors=1 (x y) (0 0)
[drm:drm_crtc_helper_set_config], [CONNECTOR:8:HDMI-A-1] to [CRTC:3]



** Bug watch added: freedesktop.org Bugzilla #48157
   https://bugs.freedesktop.org/show_bug.cgi?id=48157

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https://bugs.launchpad.net/bugs/1247160

Title:
  Ubuntu 13.10 [Studio Hybrid 140g, Realtek ALC888, Black Digital Out,
  HDMI] No sound at all

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