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The HDMI audio on my 2600k just randomly stopped working. I turned my A/V Receiver and TV off then took a nap, couple of hours later turned it back on and no HDMI audio.

The A/V Receiver does not even show as a disconnected device in Playback Devices. Only devices that are there now are my sound card. It is like there is no driver for it but everything has a driver in Device Manager and I re-installed 2 different versions on the HD Graphics driver 4 times. Even tried installing it from Windows Update.

  • Re-installed HD 3000 Drivers 4 times
  • Not the HDMI Cable
  • Not the A/V Receiver or TV (PS3 and Xbox work on same channel)
  • Reset the BIOS and made sure HDMI Audio and onboard graphics was enabled
  • HDMI Audio works just fine connected to one of my GTX 570s

That's all I got, totally stumped on this one.

Edit: Oh yeah, I also did 2 different System Restores with zero success.

Edit2: I figured it out. In BIOS settings make use Onboard HD Audio is set to "Enable" and not "Auto" or your system will randomly decide you no longer need HDMI Audio. Perhaps it is just a bug with this BIOS version or something.
Edited by ChaosBlades - 9/25/12 at 3:37am
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Gojira
(20 items)
 
Mosura
(10 items)
 
Jira
(11 items)
 
CPUMotherboardGraphicsRAM
i7-6800k @ 4.2Ghz ASUS Strix X99 Gaming MSI GTX 1080 SeaHawk EK X Corsair Dominator Platinum 32GB (4x8GB) 3000Mhz... 
Hard DriveCoolingCoolingCooling
1TB Samsung 960 Pro EK CoolStream XE 360 EK-FB ASUS X99 Monoblock SeaHawk EK X 
CoolingCoolingOSMonitor
Corsair ML120 Pro x3 Corsair ML140 Pro x1 Windows 10 Pro x64 3x ASUS VS248H-P 
MonitorKeyboardPowerCase
Acer Predator XB241H Corsair K95 RGB Cherry MX Brown CORSAIR AX860i Fractal Design S 
MouseMouse PadAudioAudio
Corsair Scimitar Black Edition Vipamz Extended XXXL Gaming Mouse Pad 36"x12"x0... ASUS Zonar Essence STX Beyerdynamic DT 990 PRO 
CPUMotherboardRAMHard Drive
AMD Opteron 6276 SuperMicro H8SGL-F 64GB (8x8GB) Hynix PC3L-10600R 8x WD Red 3TB in RAID-Z2 Storage 
Hard DriveHard DriveCoolingOS
2x Corsair Force LE RAID-Z Jails 2x LSI 9211 8i Noctua NH-U12DO A3 FreeNAS 
PowerCase
SeaSonic SS-660XP2 Fractal Design Define R5 
CPUGraphicsRAMHard Drive
Intel Core i7-6700HQ Processor 2.6GHz NVIDIA GeForce GTX 960M 2GB GDDR5 16GB RAM Samsung 960 Evo 250GB 
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Samsung 850 Evo 250GB Windows 10 Pro IPS Touchscreen 1080p Razer Naga 2014 
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Razer Vespula FiiO Q1 Brainwavz M2 
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