Re: [PATCH v4] drm/amd/pm: defer UCLK DPM on selected Apple Navi GPUs

From: Atharva Tiwari

Date: Thu Oct 29 2026 - 21:55:53 EST


> @Andre Eikmeyer I think this patch should fix your system as well.
> @Atharva Tiwari are you ok with this patch?
>
> Thanks,
>
> Alex

No, as i said this is not the reason, and we've already fixed it properly
You can see it here:
https://github.com/t2linux/linux-t2-patches/blob/main/7003-amdgpu-add-support-for-5K.patch
(Adds 5K support and fixes the boot issue).

And for the 16,1 issue (i assume), the only fix is
https://lore.kernel.org/all/20261024162109.307247-1-dev@deq.rocks/

The PPTables provided uclk clock speeds is wrong, thats what causes the issue,
initializing UCLK in post_init wont solve that.