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Troubleshooting a Stubborn DMIC on a ThinkBook 16 G7+ ASP with Linux

Detailed troubleshooting process for fixing a silent digital microphone on a Lenovo ThinkBook 16 G7+ ASP (AMD Ryzen AI 9) laptop running Linux, primarily resolved by adding the kernel module parameter options snd_sof_amd_common enable_pdm=1.

May 24, 2025 · 16 min · 3208 words · Tategoto Azarasi

Matrix Multiplication Performance Benchmark: from Triple Loops to 100+ GFLOPS on AMD Ryzen AI + Radeon

An in-depth benchmark comparing the performance of 11 matrix multiplication implementations (Naive, CPU multi-core/SIMD/BLAS, GPU via OpenCL/HIP/Vulkan) on AMD Ryzen AI + Radeon, revealing vast performance gaps and optimization insights.

April 19, 2025 · 50 min · 10476 words · Tategoto Azarasi