Yep, there is also an issue with suspend to RAM on recent AMD CPUs with integrated SoC and IGP as a chipset.

I have a Deskmini A300 with Ryzen 3400G CPU which uses only the SoC/IGP included within the processor itself and this model is the last one that supports suspend correctly.
The successor model X300 with Ryzen 5xxx support has a known issue within its SoC where suspend is not working even for Windows except an external chipset is used.
(https://www.asrock.com/nettop/AMD/DeskMini%20X300%20Series/index.asp#Specification) cit.: "DeskMini X300 Series don't support S3 function."

So therefore this issue could be also applicable to notebooks which use only the integrated CPU chipset itself instead of CPU + 500 series chipset.

I did not yet check if the newer 6xxx and 7xxx AMD processors have fixed this issue.

If you want to use suspend the disk instead there is a good article on the arch linux wiki to get an idea on how to configure it.
You will need a swap file or partition of a minimum size and an additional kernel parameter with resume setting pointing to the swap.
See also: https://wiki.archlinux.org/title/Power_management/Suspend_and_hibernate#Hibernation

Cheers Julian




Am Mi., 24. Mai 2023 um 08:07 Uhr schrieb Marco Ciampa <ciampix@posteo.net>:
On Tue, May 23, 2023 at 06:31:54PM +0200, Patrick Ohnewein wrote:
> Hi LUGBZ,
>
> does anyone have any experience with AMD Ryzen 7 PRO 6850U with Radeon
> Graphics?
>
> I have a ThinkPad T14s on which I installed the Ubuntu 22.04 LTS and am kind
> of straggling, because many applications do not really work well.
>
> For some applications I could improve a little bit the behavior, like reduce
> freezing, by disabling hardware acceleration use in the application
> settings.
>
> But, beside that I would really like use hardware acceleration for
> performance, I have a much bigger issue: Suspend crashes 80% of the times.
> Which for my use of the laptop is really annoying.
>
> Therefore I am looking for other users of this architecture willing to share
> their experience.
>
> Thanks,
> Patrick
>

I have a AMD Ryzen 7 5700U with Radeon Graphics and I can confirm that
Suspend does not work reliable with _any_ kernel.

Try yourself with the mainline ppa:

https://askubuntu.com/questions/160535/how-do-i-add-the-mainline-kernel-ppa

My current:

uname -a
Linux ciampix-lap2022 6.2.16-060216-generic #202305171336 SMP PREEMPT_DYNAMIC Wed May 17 14:04:50 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux

Beware: I didn't install 6.3 series since was compiled with a newer gcc
and so it's not compatible e.g. with virtualbox module that has to be
compiled with the same compiler...

--

Amike,
Marco Ciampa

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