I juust installed this mesa pkg mesa_23.2.0 per dpkg --force. My rock5b now runs much better than the orig mesa which was using some llvm based cpu/gpu combo.
Host: rock-5b Kernel: 6.2.0-rc1-station-m3 arch: aarch64 bits: 64
Desktop: GNOME v: 44.3 Distro: Ubuntu 23.04 (Lunar Lobster)
Display: wayland server: X.Org v: 1.22.1.8 with: Xwayland v: 22.1.8
compositor: gnome-shell driver: X: loaded: modesetting dri: rockchip
gpu: dw-dp,dwhdmi-rockchip,rockchip-drm,rockchip-vop2
resolution: 2560x1440~60Hz
API: OpenGL v: 3.1 Mesa 23.2.0-devel (git-8aa5ca2f01)
renderer: Mali-G610 (Panfrost)
Now to make this setup current I request a rebuild of the April mesa pkg to 23.x.x and upgrade kernel rock-5b 6.2.0-rc1-station-m3 #23.02.3 SMP PREEMPT_DYNAMIC Wed Apr 19 to 6.6rc4. If not interested then I'll use this as is for a while. Its quite nice and performant. Hexchat broke so Im thinking some apps wont like a non-rebuilt gnome. Gnome (the whole img) should be rebuilt based on the upgraded mesa.
This too is do to april mesa source was flawed.
gnome-shell[2663]: Failed to create scanout resource
Oct 05 11:55:42 rock-5b gnome-shell[2663]: DRM_IOCTL_MODE_CREATE_DUMB failed: Permission denied