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Increase I2C-Speed with Hyperpixel 4.0 mounted

There is no point in trying to increase the Pi's software I2C bus speed. The I2C bus you are using is implemented in software. It will not be able to keep up with a higher bus speed. Personally I ...
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i2c baudrate falling back to 160 kHz

Thanks Seamus, that fixed my issue. I saw that thread earlier and didn't think it was related. But if I set the cpu scaling to "performance" just before I run a test, the i2c clock period ...
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