{"action":"created","issue":{"url":"https://api.github.com/repos/GalliumOS/galliumos-distro/issues/148","repository_url":"https://api.github.com/repos/GalliumOS/galliumos-distro","labels_url":"https://api.github.com/repos/GalliumOS/galliumos-distro/issues/148/labels{/name}","comments_url":"https://api.github.com/repos/GalliumOS/galliumos-distro/issues/148/comments","events_url":"https://api.github.com/repos/GalliumOS/galliumos-distro/issues/148/events","html_url":"https://github.com/GalliumOS/galliumos-distro/issues/148","id":132336908,"number":148,"title":"Backlight kernel parameter on broadwell","user":{"login":"coolstar","id":1431548,"avatar_url":"https://avatars.githubusercontent.com/u/1431548?v=3","gravatar_id":"","url":"https://api.github.com/users/coolstar","html_url":"https://github.com/coolstar","followers_url":"https://api.github.com/users/coolstar/followers","following_url":"https://api.github.com/users/coolstar/following{/other_user}","gists_url":"https://api.github.com/users/coolstar/gists{/gist_id}","starred_url":"https://api.github.com/users/coolstar/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/coolstar/subscriptions","organizations_url":"https://api.github.com/users/coolstar/orgs","repos_url":"https://api.github.com/users/coolstar/repos","events_url":"https://api.github.com/users/coolstar/events{/privacy}","received_events_url":"https://api.github.com/users/coolstar/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":5,"created_at":"2016-02-09T05:45:35Z","updated_at":"2016-02-12T20:07:52Z","closed_at":null,"body":"Broadwell chromebooks running my full ROM have both intel_backlight (working) and acpi_video0 (broken) backlight control. Unfortunately linux prioritizes acpi_video0 so we need to blacklist it with \"acpi_backlight=vendor\"\r\n\r\nYes, the broadwell issue is a firmware bug in my ROM which I intend to fix, however, I can't remove ACPI brightness from the ROM for now as Windows needs even the broken ACPI controls to expose a brightness slider at all (which the intel driver takes over there). \r\n\r\nDo not blacklist it on Haswell, however, as Haswell has working acpi_video0 and some Haswell's don't have intel_backlight. (and hence those Haswells need acpi_video0 backlight control)"},"comment":{"url":"https://api.github.com/repos/GalliumOS/galliumos-distro/issues/comments/183470759","html_url":"https://github.com/GalliumOS/galliumos-distro/issues/148#issuecomment-183470759","issue_url":"https://api.github.com/repos/GalliumOS/galliumos-distro/issues/148","id":183470759,"user":{"login":"coolstar","id":1431548,"avatar_url":"https://avatars.githubusercontent.com/u/1431548?v=3","gravatar_id":"","url":"https://api.github.com/users/coolstar","html_url":"https://github.com/coolstar","followers_url":"https://api.github.com/users/coolstar/followers","following_url":"https://api.github.com/users/coolstar/following{/other_user}","gists_url":"https://api.github.com/users/coolstar/gists{/gist_id}","starred_url":"https://api.github.com/users/coolstar/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/coolstar/subscriptions","organizations_url":"https://api.github.com/users/coolstar/orgs","repos_url":"https://api.github.com/users/coolstar/repos","events_url":"https://api.github.com/users/coolstar/events{/privacy}","received_events_url":"https://api.github.com/users/coolstar/received_events","type":"User","site_admin":false},"created_at":"2016-02-12T20:07:52Z","updated_at":"2016-02-12T20:07:52Z","body":"l o l"}}