External Monitor 30 Hz – DSC not working anymore

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External Monitor 30 Hz – DSC not working anymore

Display Stream Compression (DSC) seems to be no more supported by my MacBook Pro 16" (2019, AMD Radeon Pro 5500M 8 GB) running macOS Monterey. This is resulting in 30 Hz refresh rate when external monitors with USB C hubs are in use. DSC is still working perfectly fine when booting macOS Catalina on the very same machine and the monitor is running with 60 Hz again.

Is this a known bug or are there any workarounds?

I found different threads in other forums confirming the issue, which seems to be limited to the combination of Intel based hardware and macOS Monterey (potentially Big Sur as well).

Thanks

Posted on Apr 7, 2022 11:35 PM

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Answer 1

May 7, 2022 8:16 AM in response to EmilUSA

EmilUSA wrote:

Display Stream Compression (DSC) seems to be no more supported by my MacBook Pro 16" (2019, AMD Radeon Pro 5500M 8 GB) running macOS Monterey. This is resulting in 30 Hz refresh rate when external monitors with USB C hubs are in use. DSC is still working perfectly fine when booting macOS Catalina on the very same machine and the monitor is running with 60 Hz again.

Is this a known bug or are there any workarounds?

I found different threads in other forums confirming the issue, which seems to be limited to the combination of Intel based hardware and macOS Monterey (potentially Big Sur as well).

Thanks

Does not sound compatible....

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External Monitor 30 Hz – DSC not working anymore

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