Navi 2 Fixes, Other Graphics/Display Fixes Sent In For Linux 5.9
Written by Michael Larabel in Radeon on 13 August 2020 at 12:04 AM EDT. 4 Comments
RADEON --
Following all of the feature updates to the open-source GPU/DRM drivers for Linux 5.9 that included a lot of new material, the first batch of fixes have now been sent in for mainline in addressing early fallout from these many changes.

Ahead of the Linux 5.9-rc1 release this weekend, an initial batch of Direct Rendering Manager fixes were sent out on Thursday. Among the fixes are:

- For the "Navi 2" (GFX10.3) support making its debut in Linux 5.9 with the "Sienna Cichlid" and "Navy Flounder" there are some early fixes. There is expanded register access support, updates to the golden settings (the most optimal / ideal state) for both Navy and Sienna, utilizing a "MODE1" reset by default for Sienna in handling the GPU reset, DMCUB firmware difference for Navy Flounder, enabling GFXOFF (the ability to shutoff the graphics engine in select idle cases) for Navy Flounder, and other work.

- Display Core (DC) fixes for AMDGPU.

- Support for reading the vBIOS golden setting table for the AMD display code.

- Various other fixes.

The first (of likely several) DRM-fixes pull requests for Linux 5.9 can be found via this mailing list post.
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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 20,000 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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