Even Compiz works here, Xlibre fbdev executable in practice similar to Wayland. Slower, but task-suspending phase in hibernation (warm reset) was OK. Now I test cold reboot.
The Wayland hibernates under Radeon ALSO.
Basic FireDragon browser functionality (text) now OK. Fbdev supports fast video - standard Linux players (so far with artifacts, but not anything unusual under fbdev).
Wayland generally seems to be stable (NOT as in old NVIDIA), both in RBOS (ONLY Plasma, other DE settings has big-bug) & Arch Linux (FIRST completed hibernation under Wayland, and the first under FBDEV).
Problems with KWin, as usual under Arch worser performs that while using Rebbecca Black OS. The latter, contrary to some of my suspictions supports multiple VT (virtual terminal, that is -- the Linux console).
But still I've the same orientation, the KWin is worser than Compiz.
I thought Xlibre modesetting exec. would be a fallback. But it turned out that Xlibre's fbdev program from packet is BETTER...
... under Radeon of course.
Some browser's transition effects are fast under (even!!) Xfbdev. Generally, I dislike JavaScript, but in the field of tests JS can be a bit interesting.
Strange fact, that Xfbdev supports Compiz, even the transparent windows composite effect (xdriinfo gives Screen 0: swrast).
War between CPU and GPU...?
Rasterizer is NOT a DRI, IMO... . But as fallback, its not bad. Indirection into direction... .
Fire from xscreensaver shows full Radeon 3D performance. Yea, even in "smoke domain". Other tunnelic from XSS also VERY good.
Performance jump - ideal for visualizing some spiritual themes.