I used to run an Acer Revo (NVIDIA ION) and this worked fine where I could set the sound to 5.1 in Windows. The LG amp is connected to an LG 42" TV that only supports 2 channel stereo and it's this restriction that is being picked up by the Intel card and causing windows 8.1 to restrict my sound to 2 channel.
I have this connected to an LG 5.1 amp that should play 5.1 and does via XBOX 360 and Virgin Media Cable Box. I purchased a very expensive Gigabyte Brix I4770R running Intel 5200 Iris Pro. thread/113612 Using 3rd party EDID apps to modify modes I started discussion space to continue this topic. Products: 7th Generation (Kaby Lake) - OS: Windows® 10 Products: 6th Generation (Skylake) - OS: Windows* 7, Windows* 8.1, Windows® 10 Download Intel® Graphics Driver for Windows* Products: 5th Generation (Broadwell) - OS: Windows* 7, Windows* 8.1, Windows® 10 Products: 4th Generation (Haswell) - OS: Windows® 10 Download Intel® Graphics Driver for Windows 7*/8.1* Products: 4th Generation (Haswell) - OS: Windows* 7, Windows* 8.1 These drivers enable the use of 3rd party EDID applications for internal and external panels on Intel platforms. Great news! This completes the platform support. Please implement this stuff, shouldn't be that hard to do, for one of you senior driver programmers it's probably just a few hours of work. The latest Sandy bridge CPU and corresponding chipset support all these sound standards, but they often not useable cause of these EDID problems.Īctually it really does not matter what video card / integrated graphics you use, NVidia and AMD graphics have the same problem, but their driversĪllows people to override the EDID information like is described in the above linked document from Microsoft. The problem is that very often the system only "sees" the EDID information of the television, and not that of the receiver, and so you don't get support for audio formats like DTS, DTS-HD, Dolby TrueHD that are supported by the receiver. In a common HTPC (multimedia PC) setup with a PC, AVR (audio video receiver) and a television, the EDID information stored in the receiver & television that is passed to the PC determines the video and audio capabilities like: supported resolutions, supported audio formats etc. It would be nice if the Intel Graphics driver would support overriding EDID information like described in this document from Microsoft:
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