2017-05-24, 11:38
From: http://www.phoronix.com/scan.php?page=ne...A-Features
"Followed close behind wanting HMM is another big feature not yet ready for mainline: AMD's DC/DAL code. AMD's big new display stack still hasn't landed for Linux 4.12. I've been anxious to see DC/DAL code mainlined since then it finally allows HDMI/DP audio to be used with newer Radeon graphics cards: very important for HTPCs but even for all of my test PCs I normally just use HDMI/DP audio. But now the lack of DC is even more pressing because AMD Vega and forthcoming Raven Ridge APUs also depend upon DC for display. So while Vega support is in Linux 4.12, it doesn't have any display support due to DC missing. DC is also needed for other modern display features like HDMI 2.0, atomic mode-setting, eventual open-source FreeSync, and more. Hopefully DC is finally ready with Linux 4.13."
It is not in 4.12. Maybe 4.13
"Followed close behind wanting HMM is another big feature not yet ready for mainline: AMD's DC/DAL code. AMD's big new display stack still hasn't landed for Linux 4.12. I've been anxious to see DC/DAL code mainlined since then it finally allows HDMI/DP audio to be used with newer Radeon graphics cards: very important for HTPCs but even for all of my test PCs I normally just use HDMI/DP audio. But now the lack of DC is even more pressing because AMD Vega and forthcoming Raven Ridge APUs also depend upon DC for display. So while Vega support is in Linux 4.12, it doesn't have any display support due to DC missing. DC is also needed for other modern display features like HDMI 2.0, atomic mode-setting, eventual open-source FreeSync, and more. Hopefully DC is finally ready with Linux 4.13."
It is not in 4.12. Maybe 4.13
