[BUG][REGRESSION] Upgrade to Kernel 5.5.0-1 causes screeen artifact for AMDGPU 5700XT
After upgrading to kernel 5.5.0-1 using Manajro setting manager, there are terrible screen artifacts/flickering *after the system wakes up from sleep. I didn't experience this problem in previous kernels (5.3 and 5.4). It seems to be a regression introduced in kernel 5.5.0-1. I tried adding GRUB_CMDLINE_LINUX="amd_iommu=on iommu=pt" to grub and update but it did not help. GPU: AMD® Navi10 5700XT Processor: AMD® Ryzen 9 3900x 12-core processor × 24