use the proprietary driver on ubuntu as i found it more responsive than the opensource

https://en.wikipedia.org/wiki/Confirmation_bias

Check the Phoronix site, their benchmarks are not susceptible to psychological distortion

It's better to install the kernel metapackage, that will always depend on the latest kernel version so that it will be kept updated:

# apt install linux-image-amd64/beowulf-backports

there is no "ukuu" on devuan?
don't find any mentioning of beowulf backports?

how to easily upgrade the kernel then?

Read https://devuan.org/os/packages, in the bottom backports are mentioned.

Once they are enabled in the sources.list, do an apt update, then apt -t beowulf-backports install firmware-amd-graphics.

For the kernel list what is available, then select the one you want, e.g.:

apt list linux-image-5*
apt install linux-image-5.7.0-0.bpo.2-amd64

rolfie

now i tried with
kernel 5.7 and newer linux-amd-graphics from backports (thanks rolfie)

but the error remains

(0.00000) (Firmware Bug): (AMD-Vi) : IOAPIC(1) not in IVRS Table
          (0.00000) (AMD-Vi) : Disabling interrupt remapping

but it seems there is no major issues so i can live with that;
going to upgrade to Matisse soon, so maybe the error goes then away; the Bios is already quite the latest if i am not mistaken.

^ Yes, they mentioned that in the OP.

kapqa wrote:

i suspect also the Open Source AMD Driver for the poor performance

The open source amdgpu driver outperforms the proprietary version for almost all tasks and anyway AMD themselves only recommend the proprietary driver for their PRO cards (hence the name).

https://superuser.com/questions/1052023 … ivrs-table

i had used fglrx driver before and also use the proprietary driver on ubuntu as i found it more responsive than the opensource,
also some features enable to use AMD VCE encoding in Handbrake (which is similare to quicksync and nvidia enc)
which opensource don't yet enable.

Give firmware-amd-graphics nad the 5.7 kernel from backports a try.

rolfie

thanks rolfie,

but how could i do that?

there is no "ukuu" on devuan?
don't find any mentioning of beowulf backports?

how to easily upgrade the kernel then?

^ Yes, they mentioned that in the OP.

kapqa wrote:

i suspect also the Open Source AMD Driver for the poor performance

The open source amdgpu driver outperforms the proprietary version for almost all tasks and anyway AMD themselves only recommend the proprietary driver for their PRO cards (hence the name).

Read Altoid's link, it has the answer you need. Here is a more direct version: https://superuser.com/questions/1052023 … ivrs-table

hello,

i did use the link from rolfie's last post here

https://dev1galaxy.org/viewtopic.php?id=3358

and did  the suggested

sudo apt install git
git clone git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git
cd linux-firmware/
sudo cp -va amdgpu/ /lib/firmware/
sudo update-initramfs -u
reboot

but things would remain the same.

Hi

Do you have firmware-amd-graphics installed ??

Have a nice day
Lars H

yes,

firmware-amd-graphics is already the newest version (20190114-2).

rolfie

The open source amdgpu driver outperforms the proprietary version for almost all tasks and anyway AMD themselves only recommend the proprietary driver for their PRO cards (hence the name).

Read Altoid's link, it has the answer you need. Here is a more direct version: https://superuser.com/questions/1052023 … ivrs-table

Do you have firmware-amd-graphics installed ??

Have a nice day
Lars H

thanks for your replay,
no, it is no laptop, just an non-OEM-desktop with an AM4 Motherboard (lowcost) and A10-9700 APU.

The system is functioning, but the graphics i thought would be more responsive -
infact, there are no issues besides one with SVP4Linux, but this could well be related to an older Python version, but i suspect also the Open Source AMD Driver for the poor performance -
actually the same error comes up in Ubuntu 18.04, even with the AMD Graphics Pro Driver Stack installed for the RX550,

so most probably the error [Firmware BUG] is not related to the Graphics card, but to the APU itself?
i read somewhere that the Bristol Ridge is somehow unsupoorted, on Linux, as it is on Windows 8.1 (definitely unsupported)

it is functioning, yes, but the error message made me wonder if there is something going wrong here with the graphics.

See this post https://forums.linuxmint.com/viewtopic.php?t=326047

Questions:

Does your system work properly?

Are you using VirtualBox or VMware?
Any issues?

Do you have the latest BIOS available for your laptop?

Is this the same Fujitsu Worksation Laptop with Nvidia Quadro FX770m Graphics you were installing Nvidia legacy drivers for?
If so and most important: are you certain that the graphics card you have added is compatible/supported?

Cheers,

A.

AMD-VI: disabling interrupt remapping

----------------
i am using devuan beowulf

graphics card seems recognized by "lspci"

i upgraded my computer from internal graphics by adding a Graphics Card AMD RX 550.

Now when i start the boot process shows somehting like

Firmware Bug: AMD-VI: IOAPIC(1) not in IVRS Table 

is there something wrong?
i had installed the AMD GRaphics Firmware already i believe.

thank you.