I think I've chased a few red herrings. here. Even on 6.5.0-25 this issue persists. The only way to prevent it is to either downgrade to the 6.2 kernel (which isn't an option considering all the security updates which it will no longer receive) OR installing the driver package from AMD.com.
This very thoroughly implicates the amdgpu driver in this kernel version ** Summary changed: - System freezes from 100% CPU from kcryptd with Kernel 6.5 + System freezes momentarily when playing video with Kernel 6.5 with AMD GPU -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-hwe in Ubuntu. https://bugs.launchpad.net/bugs/2048924 Title: System freezes momentarily when playing video with Kernel 6.5 with AMD GPU Status in Linux: New Status in linux-hwe package in Ubuntu: New Bug description: Upon updating from the 6.2 kernel series to 6.5.0-14, I have began encountering ~1-3 second freezes when playing videos. This happens in Firefox, VLC and Totem. Booting from any 6.2 kernel resolves the situation, and going back to 6.5 reintroduces the issue every time. My system is running 22.04 and consists of a B450 Chipset, a Ryzen 5600x and a Radeon RX 6600 GPU. I am running Wayland. Disabling OpenGL output and going to X11 xcb in VLC prevents the freeze, and disabling HW acceleration in Firefox does the same. I am wondering therefore if this is an issue with the GPU driver in this kernel. To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/2048924/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
