I succesfully merged and test radeontool version 1.6.3 on a PowerBook G4 1.67 GHz 15" alubook. All features seem to be OK, except for the secondary display output enable; but I suspect another issue about this feature, not directly related to this package. Then, I suggest this app-laptop/radeontool 1.6.3 to be marked as stable on PPC architecture.
ppc team please test and mark stable. CC'ing you directly as there's no maintainer. Target keywords: ppc.
I finally tested succesfully the radeontool dac on/off feature; the only issue was the DVI output seems analog only and I was trying to check digital output on an HDMI screen. Then, all features are OK for me on my PowerBook G4 1.67 Ghz 15" alubook.
Dear Maintainer (or who is mainly involved in this stable request), This is an auto-generated message that will move the current component to the new component Stabilization. To ensure that the stabilization will proceed correctly, please fill the fields "Atoms to stabilize" and "Runtime testing required" as described here: https://archives.gentoo.org/gentoo-dev/message/4b2ef0e9aa7588224b8ae799c5fe31fa
ppc stable. Closing.