Supplemental update broke my RX 580 config?
I was happily running 10.3.2 on my Mac Pro with RX 580 without any performance issue (I had fixed the sleep issue by doing the plist edit mentioned in the other thread).
After the recent supplemental update, it looks like my card is no longer properly recognized as I only have basic screen display: screen refreshes very slowly with "blinds" effects, some programs even show empty windows (e.g. Spotify), scrolling is anything but smooth. In one word, it is barely usable to read mail and browse internet, if that much
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