On Tue, 1 Feb 2022, Vidya Sagar wrote:

> Kenneth R. Crudup <kenny@panix.com>
> Could you please try this patch on top of linux-next and collect more info?
> - 'sudo lspci -vvvv' output before and after hibernation

See attached. Added a diff file, too.

> - could you please confirm the working of this patch for non NVMe devices that
>   support L1 Sub-States?

It seems to work, I'm on it now. I saw a "GPU Hang" from the i915 driver, but
it doesn't seem to be affecting the GPU any.

> - Could you please try "NVME_QUIRK_NO_DEEPEST_PS" and "NVME_QUIRK_SIMPLE_SUSPEND"
>   quirks (one at a time) in check_vendor_combination_bug() API and see if it
>   makes any difference?

Do you still need me to do that, since this appears to work?

I will try another hibernate attempt just to be sure, too.

	-Kenny

-- 
Kenneth R. Crudup / Sr. SW Engineer, Scott County Consulting, Orange County CA