The Current State Of AMD Ryzen 3000 CPUs And Radeon RX 5700 GPUs On Linux



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The cards launched on July 7, and AMD had its Radeon Software for Linux 19.30 package ready for customers. The downside? It's only supported on Ubuntu 18.04.2 LTS, and you'll run into problems trying to initialize the GPUs on newer distros. Compounding the problem is that, as mentioned by Phoronix, the RADV/AMDVLK Vulkan driver hadn't been published yet. (This is why my own benchmarks have been stalled, as I'd be limited to testing OpenGL.)
But wait! Hours later, the RADV developer gurus at Valve and Red Hat beat AMD to the punch and squeezed Navi Vulkan support into the Mesa 19.2-devel package. Then, earlier today, a few more improvements focused on tessellation were wrapped up and are pending review.
Here's what all this means for us "normal people" who don't want to cobble together random bits of open source code to get our game on with RX 5700. Your mileage may vary, but I found the "easiest" solution was to install Ubuntu 18.04 LTS, install the official AMD 19.30 packaged driver, then add the Oibaf PPA. A quick apt update / upgrade later, and you should be on Mesa 19.2-git which will enable Vulkan support. (And development is moving quickly on this, so regular updates are recommended.)
Sadly, simple "out of box" support for Navi isn't landing until this autumn with kernel 5.2, so early adopters will need to go through some hoops and keep an eye on Mesa 19.2 development.
Even with the bleeding edge software, I'm noticing some strange behavior (i.e. unplayable) with native games like Warhammer 40K: Dawn of War III and Dirt Rally.
Bottom line: I don't think the RX 5700 Series is ready for prime time on Linux just yet, at least for gaming activities. I'm planning extensive coverage, however, so I'm keeping a vigilant eye on things.
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