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.
Most likely this CPU needs a more recent Linux Kernel for its core
frequency scheduling and assignment than included in Ubuntu 22.04 LTS.
There were some updates in the latest kernel releases. Try to install some
rolling release OS like Arch Linux or Manjaro with a more recent kernel.
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...
I have a AMD Ryzen 7 5700U with Radeon Graphics and I can confirm that
Suspend does not work reliable with _any_ kernel.
This is not very promising. But I got from others they have no issues
since the use updated kernel and firmware.
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...
Thank you for sharing this warning. I will be careful.
My plan at the moment is to update to a more recent distro. Maybe my
first try will be a dist-upgrade to Ubuntu 23.04.
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
PS: I just bought a refurbished Lenovo Yoga X1 and installed Debian 11 and 12 (Gnome as desktop environment): everything worked out of the box: suspend, video, audio, screen rotation, touch screen calibration, using both finger & pen. Really an amazing product.
I would like to thank Julian Sanin, Marco Ciampa, Andreas Kofler, Paolo
Dongilli, Igor Falcomatà , all the participants to the FSFE Merano
Meeting this Tuesday and all others who have supported me in this journey!
Here you can find a picture I took while upgrading from Ubuntu 22.04 to
23.04:
It was an amazing experience to upgrade the whole operating system in
just 20-30 minutes and seeing the desktop background change while on the
other screen I was reading articles in the web browser. The stability of
GNU/Linux is really impressive!
Kudos to the whole Free Software community!
Patrick
