v1 for context:
https://lists.freedesktop.org/archives/amd-gfx/2026-September/152278.html
Leo's Reviewed-by from that thread is carried in the v2 commit message.
Since sending v2 I also retested 280 Hz, the other mode that reproduced
on the unpatched build. Both modes above the ~243 Hz cliff are now
confirmed on the patched kernel, each with
/sys/kernel/debug/clear_warn_once reset immediately beforehand so the
negatives are independent:
mode unpatched patched
280 Hz WARN none
360 Hz WARN none
Unchanged otherwise: no WARN across three boots of the patched build,
and 240 Hz still idles at 96 MHz memory clock and ~5 W.
Thanks,
Francis