AMD News Archives
Google Sends Patches For AMD Zen / Zen 2 RAPL PowerCap Support

Building off the work sent out by Google engineers in recent months and merged for Linux 5.8 around RAPL support for AMD Zen / Zen 2 CPUs with supporting the "runtime average power limiting" counters on Linux similar to Intel's longstanding support, that work has continued now with Zen RAPL support in the PowerCap driver.

29 July 2020 - Runtime Average Power Limiting - 3 Comments
TUXEDO Computers Launches A Linux Laptop With Ryzen 7 4800H / Ryzen 5 4600H

Back in May the folks at TUXEDO Computers in Germany launched their first AMD Linux laptop. That device though was a letdown in being based on a previous-generation AMD Ryzen 3000 series mobile processor rather than the far better Ryzen 4000 "Renoir" processors. Fortunately, today they announced the Pulse 15 laptop that comes in Ryzen 5 4600H and Ryzen 7 4800H processor options.

21 July 2020 - TUXEDO Pulse 15 - 77 Comments
I've Been Running The AMD Ryzen 7 4700U + Ubuntu 20.04 As My Main System

For about one and a half months now I have been using the AMD Ryzen 7 4700U as my main laptop paired with Ubuntu 20.04 LTS. It's been working out very well for not even being the top-of-the-line AMD Renoir SKU. Here is some additional commentary for those thinking about one of the new AMD laptops with Linux use.

17 July 2020 - Lenovo Ryzen 7 + Ubuntu Linux - 56 Comments
AMD Ryzen 9 3900XT Memory Scaling Performance Under 100 Different Tests

For those thinking of picking up one of the new AMD Ryzen 3000XT series processors and weighing whether it's worthwhile on your budget picking up DDR4-3600 memory or other higher frequency DDR4 modules, here are some fresh benchmark results with the Ryzen 9 3900XT looking at 100 different tests on Linux and showing how the performance changes from DDR4-2133 through DDR4-3800.

14 July 2020 - Ryzen 9 3900XT + DDR4 Memory Frequency - 18 Comments
Linux 5.8 Bringing Some Performance Boosts For AMD Renoir Graphics

Over the weekend I began running some benchmarks of the Linux 5.8 development kernel on the Lenovo Flex 5 laptop with Ryzen 5 4500U. One of the standouts so far for from this Linux 5.8 testing compared to the stable 5.6/5.7 kernel series is better Radeon graphics performance with the Renoir laptop.

29 June 2020 - Ryzen 5 4500U Testing - 11 Comments
AMD Zen/Zen2 RAPL Support Merged In Linux 5.8

Complementing the new AMD Energy Driver in the hwmon subsystem for Linux 5.8 to provide per-socket/core reporting, the Linux perf subsystem in this new kernel version has run-time average power limiting (RAPL) framework integration for AMD Zen/Zen2 CPUs.

3 June 2020 - Runtime Average Power Limiting - Add A Comment
AMD Sensor Fusion Hub Support Is Not Coming With Linux 5.8

For those AMD Ryzen laptop users eager to see the Sensor Fusion Hub driver for supporting the different hardware sensors on these AMD Zen laptops, that driver still isn't going to be merged for the upcoming Linux 5.8 cycle even after the patches were first published months ago.

24 May 2020 - AMD SFH - 33 Comments
AMD Renoir Temperature Monitoring To Come With Linux 5.8

When it comes to the support for AMD Ryzen 4000 "Renoir" laptop support under Linux, as outlined in my testing so far this month the main caveat is needing Linux 5.6~5.7 for good graphics support but on the likes of Ubuntu 20.04 LTS with Linux 5.4 you will not have GPU acceleration. At least in the case of the Lenovo IdeaPad 5 I have been using to test, you also need Linux 5.7 Git for battery sensor support. Another item that in turn is coming with Linux 5.8 is CPU temperature reporting for the Renoir processors.

22 May 2020 - Renoir Temps - 20 Comments
Google Posts Patches Allowing AMD Zen/Zen2 CPUs To Expose Power Usage On Linux Via RAPL

One of the long sought after features for AMD Zen (and Zen 2) processors on Linux has been the ability to monitor the CPU package power consumption on Linux, similar to what's long been available for Intel CPUs on Linux and similarly for older AMD Bulldozer era CPUs with a power monitoring driver. Now on Friday evening a patch series was posted by a Google engineer to provide this long sought after functionality.

16 May 2020 - RAPL Support!!! - 29 Comments
For Radeon Gamers On Ubuntu 20.04 LTS, It's Generally Worthwhile Flipping On RADV's ACO

A premium supporter was asking this week whether for those newly-upgraded to Ubuntu 20.04 LTS if the graphics stack is in good enough shape or if I would recommend running Mesa 20.1-devel for better AMD Linux gaming performance... The short answer, sans any particular changes you are after in Mesa 20.1-devel, the bigger gain for running on this new Ubuntu release is to instead enable RADV+ACO as a much more pressing boost.

29 April 2020 - RADV + ACO On Ubuntu 20.04 - 15 Comments

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