On my system:
Framework 16, AMD Ryzen 7 7840HS w/ Radeon 780M Graphics
Kubuntu 25.04 plucky
6.14.0-29 kernel
AMD Proprietary graphics drivers version 1:6.4.60402-2187269.24.04
When I wake the laptop from sleep, the display is very choppy / laggy. For example, grabbing a window and dragging it around with the mouse, scrolling the web / application content, etc feels like 15fps, with countless little stutters.
Seems very similar to the issues in this thread:
If I reboot the laptop, everything is butter smooth. Sometimes it seems to fix itself, sometimes not. I haven’t figured out the ultimate cause.
I’ve tried playing with power profiles, forcing it to “performance” mode, which I thought worked once but did not fix the problem long term.
Checking dmesg, the only thing I see that’s kind of interesting is this:
amdgpu 0000:c2:00.0: amdgpu: (-95) failed to disable fullscreen 3D power profile mode.
The previous thread (linked above) seemed to indicate that rolling back the kernel might work, though it sounds like a fix was added in later kernels.
I’m using the following kernel flags in /etc/default/grub:
amdgpu.dcdebugmask=0x10
amdgpu.dcdebugmask=0x410
Not sure what to try next. The stutter is really annoying given how smooth things should be. But of course, constantly rebooting the laptop is really annoying as well.