Posted on Jun 18, 2023 by kingbeowulf
After a recent purchase a few months ago of a MSI Mech Radeon RX 6650 XT ($280 US, newegg.com, now $250), I noticed a peculiar behavior whenever the monitor powered down: The admgpu/drm crashed. The system had to be shutdown and power cycled to restore GPU function. Same issue on both motherboards:
Gigabyte X570 AORUS ELITE AMD Ryzen 9 3900X
Kernel 5.15.94 Mesa-22.2.5 libdrm-2.4.115
Gigabyte 27-in 2560x1440 170 Hz IPS
Gigabyte X570 I AORUS PRO WIFI AMD Ryzen 7 3800X
Kernel 5.15.94 Mesa-21.3.5 libdrm-2.4.109
Samsung 28-in 4K 60 Hz IPS
An example or the errors in /var/log/syslog:
Posted on Feb 08, 2020 by kingbeowulf
I have finally had some time to compile the benchmarks for a series of GPUs on the new mini-ITX build. The purpose was to see if the amdgpu driver is ready to compete with Nvidia on a Linux powered game box. The GPUs choices are simply what I had available and fairly recent, except for the RX 5700 XT, which was a new purchase.
System Configuration
Posted on Feb 08, 2020 by kingbeowulf
I have finally had some time to compile the benchmarks for a series of GPUs on the new mini-ITX build. The purpose was to see if the amdgpu driver is ready to compete with Nvidia on a Linux powered game box. The GPUs choices are simply what I had available and fairly recent, except for the RX 5700 XT, which was a new purchase.
System Configuration
Posted on Dec 31, 2019 by kingbeowulf
To close out the old and ring in the New Year, I've added my EVGA GTX 1060 6GB GPU to the benchmark comparison. Both the GTX 1060 and GTX 950 are short, single fan ITX form factor cards that will fit the mini-ITX case. We'll have to wait for CES 2020 to see what GPUs AMD announces, and what form factors manufacturers push out. Rumor has it the the second generation Navi will be twice as fast as the current Radeon 5700 XT series. I noticed that the XFX RX590 is a dual BIOS card with a switch - the "perf" run is with that switch set for a more aggressive fan curve (1660+ rpm at idle) vs. quite mode (880 rpm). It didn't provide a significant performance increase but did keep the GPU about 10C cooler. All runs were with VSYNC off but all other settings (driver and phoronix) at default values.

The RX590 ekes out a few more fps over the GTX1060, but generally the performance is nearly equivalent.
Posted on Dec 22, 2019 by kingbeowulf
Here are some initial Phoronix-test-suite benchmarks for the miniITX Rysen 7 with various GPUs I had on hand. For Nvidia, we used the their proprietary driver; for AMD, the open source radeon and amdgpu drivers provided in Slackware64-current kernel 5.4.2, 5.4.3, 5.4.5 (nvidia, radeon, amdgpu, resprctively - Slackware updates were fast and furious this week!).
The CPU cooler is a low profile SilverStone SST-KR01 so that the power supply would fit. Power is provided via a Rosewill HIVE 650S 650W ATX power supply. The Nvidia EVGA GTX 950 is an ITX form factor GPU; and thus, the results are with the case closed. The 2 radeon GPUs are huge and are attached via a PCI-E riser with the case open.
Phoronix Test Suite from Slackbuilds.org; stock KDE4; system and tests use default settings. For the RX590, the "HIGH" run references setting the GPU power management to "high" from the default of "auto".
Posted on Dec 15, 2019 by kingbeowulf
It was a shame to toss a perfectly good mini-ITX case (Coolermaster Elite 110), so with the assistance of a mysterious benefactor, and fellow Slackware fan, I now have the components:
Jun 18, 2023
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Feb 08, 2020
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Feb 08, 2020
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Dec 31, 2019
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Dec 22, 2019
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Dec 15, 2019
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