Atomic Mode-Setting/Display Support Progresses In Linux 3.20
Written by Michael Larabel in Linux Kernel on 28 January 2015 at 01:23 PM EST. 2 Comments
Going along with many DRM graphics driver improvements for Linux 3.20 is the seemingly never-ending work on atomic mode-setting.

Atomic mode-setting/display support has been talked about for years but is finally nearing a reality within the mainline Linux kernel with drivers like the Tegra DRM driver adding initial support.

With Linux 3.20 there's the actual Linux DRM Atomic IOCTL and along with other changes means that Linux user-space can start accessing the atomic support, albeit it's hidden for now behind the experimental drm-atomic=1 flag.

The Phoronix Tour of Chernobyl for those that haven't experienced it previously.

This initial support is still very experimental and there's a lot of other work to be handled. To learn more about the atomic state in Linux 3.20 and future work, see this blog post written today by Daniel Vetter of Intel's Open-Source Technology Center as the Intel DRM maintainer and one of the developers that's been involved with this long project.
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Michael Larabel is the principal author of 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 automated benchmarking software. He can be followed via Twitter or contacted via

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