I'm on Manjaro, Huawei Matebook D (Ryzen version), but I had the same problem and I solved it by changing my /etc/default/grub file in the following way:
I changed this line: GRUB_CMDLINE_LINUX="" to this: GRUB_CMDLINE_LINUX="amd_iommu=on iommu=pt"
then I did: sudo update-grub && sudo reboot
Everything seems to be working fine now.
Solution found here: https://forum.manjaro.org/t/screen-tearing-amd/63505 (which contains a link to this previous thread: https://forum.manjaro.org/t/fix-gigabyte-970-990-amd-motherboards-and-iommu/44642 )
I'm on Manjaro, Huawei Matebook D (Ryzen version), but I had the same problem and I solved it by changing my /etc/default/grub file in the following way:
I changed this line: LINUX=" " LINUX=" amd_iommu= on iommu=pt"
GRUB_CMDLINE_
to this:
GRUB_CMDLINE_
then I did:
sudo update-grub && sudo reboot
Everything seems to be working fine now.
Solution found here: https:/ /forum. manjaro. org/t/screen- tearing- amd/63505 /forum. manjaro. org/t/fix- gigabyte- 970-990- amd-motherboard s-and-iommu/ 44642 )
(which contains a link to this previous thread: https:/