If you have a Slimbook computer based on AMD CPUs, you would probably have various problems that have been reported recently in these devices. 

In this tutorial we will show you how to mitigate these errors with AMD devices:

Power-off problems

In recent EVO 8845HS models and in all EVO AI9 365 models, there is a problem when powering off the device. These will not power off fully, leaving no other choice but power it off forcefully with the power on button.

If this problem occures to you, we have a temporary solution to mitigate these problems until we have another solution:

Open the configuration file for grub:

sudo nano /etc/default/grub

We will need to change the value of GRUB_CMDLINE_LINUX_DEFAULT, removing quiet, splash or both. We recommend removing only the quiet option since it will not remove the startup animation unlike removing splash.

After changing the value of GRUB_CMDLINE_LINUX_DEFAULT, we update grub:

sudo update-grub

And in the next start-up of the device, it will power-off properly without having to power it off forcefully.

We repeat that this is a temporary solution, and that in the future it might not work anymore. 

Freezes with external monitor 

In recent versions of the Linux kernel, 6.11 to 6.17 to be exact, there is errors with the AMDGPU driver when the device is connected to an external monitor. This makes the device, in some occasions, to freeze completely.

For OS based on Ubuntu

Ubuntu has published a Linux kernel 6.17 for the LTS versions:

sudo apt-get update && sudo apt-get install linux-oem-24.04d

For OS based on Debian

Currently, the only solution to this is to compile a kernel with these errors patched. We have a kernel package, for Debian based systems, based on 6.16 that fixes these AMDGPU errors.  

mkdir /tmp/kernel && cd /tmp/kernel wget https://cloud.slimbook.net/public.php/dav/files/download/Utilities/linux-kernel-6.16.0-amdfix.zip unzip ./linux-kernel-6.16.0-amdfix.zip sudo dpkg -i ./linux-headers-6.16.0-amdfix_6.16.0-5_amd64.deb sudo dpkg -i ./linux-image-6.16.0-amdfix_6.16.0-5_amd64.deb

After installing the kernel packages, you should update grub so it appears as a grub entry when booting up the system: 

sudo update-grub

This is a temporary solution, until the AMDGPU driver in the affected upstream kernels are fixed.

For OS based in other distributions

Meanwhile we prepare packages for other package managers like RPM-based or Pacman, we suggest to compile the kernel manually with the AMDGPU patches applied: 

mkdir /tmp/kernel && cd /tmp/kernel git clone --recursive https://gitlab.freedesktop.org/agd5f/linux . git checkout 0bb04c35f7c2beade71e126686d8ef3fa8344135 wget https://raw.githubusercontent.com/Slimbook-Team/slimbook/refs/heads/master/kernel_config/.config make -j($nproc) make install

After installing the kernel we update grub:

sudo update-grub