How to install AMD-GPU-PRO Drivers in Ubuntu 21.04?

Every time I execute

./amdgpu-pro-install --opencl=pal,legacy

within the

amdgpu-pro-21.10-1247438-ubuntu-20.04

folder, it will try to install it, but then it will crash with the error:

Errors were encountered while processing:
 amdgpu-dkms
 amdgpu
 amdgpu-pro
 amdgpu-pro-lib32
E: Sub-process /usr/bin/dpkg returned an error code (1)
Please Help, thanks.

Things I've tried:

• This Tutorial, but they say "this setup is Not granted for every Linux Kernel so do it at your own Risk", and then they don't specify the Kernel they used.
• sudo dpkg --configure -a
• booting with 5.8.0-55-generic Kernel (I only have 5.11.0-18-generic and 5.8.0-55-generic installed)

Full output from the install script, Mirror

tweimann@lol:$ neofetch 
tweimann@lol 
OS: Ubuntu 21.04 x86_64 
Kernel: 5.11.0-18-generic 
Uptime: 21 mins 
Packages: 4019 (dpkg), 16 (flatpak), 32 (snap) 
Shell: bash 5.1.4 
Resolution: 2560x1440, 1920x1080, 1440x2560 
DE: GNOME 3.38.4 
WM: Mutter 
WM Theme: Adwaita 
Theme: Adwaita-dark [GTK2/3] 
Icons: Yaru [GTK2/3] 
Terminal: gnome-terminal 
CPU: Intel i7-9700K (8) @ 4.900GHz 
GPU: Intel CoffeeLake-S GT2 [UHD Graphics 630] 
GPU: AMD ATI Radeon RX 470/480/570/570X/580/580X/590 
Memory: 6698MiB / 63219MiB

Please Help, thanks.

amd release notes: For Ubuntu 20.04.1, only Kernel 5.4/5.6 are supported. Latest Kernel version 5.8+ is not supported. Customers with Kernel 5.8+, need to downgrade to 5.4/5.6 for proper driver support.

it seems that you will have to downgrade to a lower kernel version

Worked for me:

If you are comfortable with an older kernel on your system:

Add repository for old kernel, e.g. former repository from Groovy Gorilla:

deb http://de.archive.ubuntu.com/ubuntu/ groovy main restricted
deb http://de.archive.ubuntu.com/ubuntu/ groovy-updates main restricted

Installed Kernel 5.8 + Modules + Headers:

apt install linux-image-5.8.0-53-generic linux-modules-extra-5.8.0-53-generic linux-headers-5.8.0-53-generic

Changed VERSION_ID in /etc/os-release back to 20.04:

root@localhost /e/apt# cat /etc/os-release
NAME="Ubuntu"
VERSION="21.04 (Hirsute Hippo)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 21.04"
VERSION_ID="20.04"
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
VERSION_CODENAME=hirsute
UBUNTU_CODENAME=hirsute

Change into extracted drivers directory, e.g. in Downloads:

cd ~/Downloads/amdgpu-pro-20.50-1234664-ubuntu-20.04

Run the installer:

./amdgpu-pro-install --opencl=rocr,legacy -y

Reboot.

Then, with xrandr you should be able to see the freesync parameters:

[user@localhost]➜ ~ xrandr --props | grep free
 freesync_capable: 0 
 freesync: 0 
 freesync_capable: 0 
 freesync: 0

Depending on your monitors connection (here: DisplayPort-0) you may be able to change freesync to 1:

[user@localhost]➜ ~ xrandr --output DisplayPort-0 --set "freesync" 1
[user@localhost]➜ ~ xrandr --props | grep free
 freesync_capable: 0 
 freesync: 1
 freesync_capable: 0 
 freesync: 0

amdgpu-pro-21.30-1290604-ubuntu-20.04 installs and works in 21.04 with kernel 5.11.0-25 after only:

Changed VERSION_ID in /etc/os-release back to 20.04:

tested in blender 2.93.2