AMDGPU DC's Latest 34 Patches Provide More Fixes
Written by Michael Larabel in Radeon on 20 March 2018 at 04:17 PM EDT. 7 Comments
RADEON --
Another week, another code drop derived from AMD's internal driver code-base providing an updated DC display code stack.

This week's collection of 34 AMDGPU DC patches are mostly comprised of general fixes. Surprisingly no mentions of Raven Ridge (and only one patch mentioning DCN), so it's looking like at least from the display side things are calming down for those Vega+Zen APUs -- I've been running tests the past day and will have an update later today or tomorrow on the situation.

What is provided by these 34 latest display code patches are fixing multi-channel audio, addresses banding on 6-bit eDP panels with Polaris GPUs, fixes for Polaris 12 bandwidth calculations, and no longer does EDID reading during the atomic check for DP MST setups.

That's about it; the complete list of 34 patches are outlined on amd-gfx.

In case you missed it, Linux 4.17 will enable AMDGPU DC by default for all supported GPUs (rather than just Vega/Raven as was the case currently) so users will no longer need to boot with amdgpu.dc=1 for this display code stack providing HDMI/DP audio, atomic mode-setting, eventually FreeSync, and other modern display features.

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Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter or contacted via MichaelLarabel.com.

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