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#debugging
2 posts
Note Technical
The USB Flash That Died Every Two Seconds (and the Power-Button Trap)
A bootloader flash that failed at a suspiciously consistent interval, the misdiagnosis that chased the cable, and the power-management timer that was actually killing it.
Read Technical · 8 min
The Speakers Were Fine. The Amplifier Was Asleep.
My laptop's internal speakers were silent on Linux but worked on Windows. Every software layer said audio was playing — I even recorded an 80%-amplitude signal off the sink. The speakers weren't broken: the Cirrus Logic CS35L41 smart amplifiers never engaged, and the kernel 6.8 driver couldn't wake them on an HP Envy x360. Here's the full diagnostic path and the one-line fix.
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