{"action":"closed","issue":{"url":"https://api.github.com/repos/raspberrypi/linux/issues/450","labels_url":"https://api.github.com/repos/raspberrypi/linux/issues/450/labels{/name}","comments_url":"https://api.github.com/repos/raspberrypi/linux/issues/450/comments","events_url":"https://api.github.com/repos/raspberrypi/linux/issues/450/events","html_url":"https://github.com/raspberrypi/linux/issues/450","id":23422244,"number":450,"title":"Latest firmware outputs HDMI 7.1 channel PCM as 5.1","user":{"login":"tghewett","id":4381517,"avatar_url":"https://avatars.githubusercontent.com/u/4381517?v=3","gravatar_id":"","url":"https://api.github.com/users/tghewett","html_url":"https://github.com/tghewett","followers_url":"https://api.github.com/users/tghewett/followers","following_url":"https://api.github.com/users/tghewett/following{/other_user}","gists_url":"https://api.github.com/users/tghewett/gists{/gist_id}","starred_url":"https://api.github.com/users/tghewett/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/tghewett/subscriptions","organizations_url":"https://api.github.com/users/tghewett/orgs","repos_url":"https://api.github.com/users/tghewett/repos","events_url":"https://api.github.com/users/tghewett/events{/privacy}","received_events_url":"https://api.github.com/users/tghewett/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"milestone":null,"comments":30,"created_at":"2013-11-27T23:37:28Z","updated_at":"2015-04-12T19:39:55Z","closed_at":"2015-04-12T19:39:55Z","body":"The latest firmware (based on 3.10.19+) produces 7.1 channel PCM as 5.1 at the receiver.\r\n\r\nUsing the current raspberry.org download of Arch Linux with its older firmware produces 7.1 channel PCM as 7.1 channels at the receiver, something went wrong around the time of the up-step from 3.6.x to 3.10.x.\r\n\r\nCopying the current *.dat, *.bin and *.elf files to the stock Arch Linux installation makes the problem happen there too. Running a 3.10.19+ kernel built using the Arch Linux config doesn't fix it.\r\n\r\n(Also the solution for the previous problem of S/PDIF encoded audio not being decoded at the receiver doesn't work with Arch Linux and 3.10.19+, though it is fine on Raspbian with the same firmware and the same 3.10.19+ source kernel built using the Raspbian config (which Arch Linux won't boot) ... Does the fix need a particular kernel option enabled or disabled? Both had the same *.elf, *.dat and /opt/vc files.)"}}