Windows 10: No sound from rear speakers

I have recently moved house and on setting up my media pc, I noticed I was not getting any sound out of my rear speakers. A channel test on the receiver confirmed that they are working, so the issue has to be with Windows. I just upgraded it with a new SSD and case and performing a sound test on booting and installation of drivers, there is still no sound from the rear speakers. The sound that is meant to come from them is coming through the front speakers. The front (left, right and centre) speakers and subwoofer work correctly.

My pc is connected via HDMI to a Pioneer HTP-072, a HTiB (Home Theatre in a Box) comprised of a Pioneer VSX-324 with passive sub and speakers. I have never had any problem with them before. The HDMI cable is plugged into a Radeon HD 7870. Running video files on Kodi, the correct formats do appear on the receiver (TrueHD, DTS-MA, etc.) I have carefully rewired all the speakers but, as explained above, a channel test on the receiver has sound coming from the rear speakers as normal.

Any ideas? This is driving me crazy. It has to be a problem with Windows but I can't find what that might be. It was running on Windows 7, is now running on Windows 10, but the issue oddly remains.

:)

 

Audio Problem: all of a sudden the sound only goes to the left, right, and sub woofer, there is no sound coming from the center, rear left and right speakers.

I have a logitech 5 speaker system being a left,right,sub,rear right, and rear left speaker. All the speakers connect to the sub and from the sub there is the green, orange, and black cord that plugs into the back of the computer. The other day I moved my
computer to a different room and now all of a sudden the sound only goes to the left, right, and sub woofer, there is no sound coming from the center, rear left and right speakers. They all still work because I did the sound test and they make the sounds.
When I click on the speakers tab on the sound menu it says jack information and the only one it shows is the green one. I'm not sure why unpluging it I guess messed up the settings.

OP - Audio Problem:

 

Windows 10 No Sound from speaker port

Just upgraded 64 bit from 8.1 to 10. No sound from speakers yet headphones are OK and sound set up causes rear speakers to ring out. What is going on? Currently using headphones outlet to play speakers.

 

Sorry for your troubles. All I can suggest is to check the drivers to make sure all is current and correct, and then to check settings to make sure all of your channels (front left, center, front right, rear left, rear right) are properly assigned and working. If I were in your shoes, I would uninstall the audio drivers, then reinstall them to see if that helps. Otherwise clueless, so forgive my suggestions if they prove unhelpful.
Best wishes for a speedy resolution,
--Ed--

 

Hi Ed, the drivers are the latest Crimson 17.11.2 on a fresh install of Windows 10, there are no seperate audio drivers as such. And as the problem remains across two operating systems and the different drivers on both, I'm unconvinced that drivers are the issue.

 

Update - sound now plays from the rear speakers, but now the centre speaker is acting up. No sound from it whatsoever. Again, all channels play correctly on the receiver's speaker test. Playing films in Kodi, proper audio formats still do not show on the receiver, only Stereo, StereoEXT and PCM. Choosing PCM, Kodi reports that it is playing video files in the correct format (ex. TrueHD, DTS-MA). But still no sound from the centre channel and nothing showing on the receiver. Obviously, with the centre speaker producing nothing, I am missing a lot of sound when videos are playing.