The xf86-video-ati X.Org Driver Receives Some EOY Updates Ported From AMDGPU
Written by Michael Larabel in Radeon on 25 December 2018 at 02:37 AM EST. 4 Comments
RADEON --
If you are still running a pre-GCN AMD graphics card and unfortunately didn't find a new graphics card under any Christmas tree this year, AMD's Michel Dänzer does have a present for you with some improvements to the xf86-video-ati driver that continues serving as the common X.Org driver for pre-HD7000 series graphics cards.

A batch of 13 patches were posted a few days ago to this aging X.Org driver. These changes are back-porting relevant fixes/updates from the modern xf86-video-amdgpu driver back to xf86-video-ati for benefiting these dated Radeon GPUs... Assuming you are not running Wayland or otherwise using the generic xf86-video-modesetting DDX driver atop the Radeon DRM/KMS driver.

These patches include work around gamma correction, GLAMOR, vblank / page-flipping improvements/fixes including TearFree, using two hardware cursor buffers per CRTC, and other changes leading to a few hundred lines of codes changed. No big features but a lot of maintenance work that will hopefully improve the Radeon Linux desktop experience for some on these older platforms.

The xf86-video-ati DDX driver rarely sees new activity these days considering the age of the GPUs supported, so take these patches as a nice end-of-year treat for 2018. Then again, all of the interesting display driver work happens these days in the kernel DRM/KMS drivers rather than the user-space X.Org display driver bits; the xf86-video-amdgpu driver doesn't even see many commits these days while the AMDGPU DRM kernel driver is where the real magic happens for modern Radeon graphics hardware.

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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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