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Updated AMD Microcode Fixes The R7 260X, Other "SI" GPUs

AMD

Published on 11 April 2014 12:37 PM EDT
Written by Michael Larabel in AMD
13 Comments

Alex Deucher sent out a set of three patches today to update the microcode used by the AMD "Southern Islands" graphics processors.

The patches published this morning add support for newer memory controller microcode on newer AMD GPUs and it ends up fixing memory clocking stability for certain GPUs.

The update stems from a bug report about stability and performance issues. In numerous articles I also found very poor performance when using the open-source driver (not Catalyst) for a Sapphire Radeon R7 260X. It turns out these problems come down to DPM issues / microcode problems.

Updated AMD Microcode Fixes The R7 260X, Other "SI" GPUs


With this latest work, R7 260X re-clocking is re-enabled. Alex Deucher of AMD has marked this set of patches as candidates for merging into existing Linux kernel stable releases.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
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