The xpet VICE core is newer so perhaps it isn’t quite ready for a arbitrary install yet without preconfigured settings.
Whenever I try to run any content (.prg) the black window appears that always does right before load and then it immediately goes back to the retroarch menu. I’ve tried this with d3d12, vulkan, and gl video drivers. Based on the log it seems like it may have to do with no being able to read the cfg file (since it doesn’t exist) but then it also can’t use defaults for some reason.
Though, there are also a few entries of it not being able to load a few ROM files that I can find a bit on through Google (primarily links to standalone VICE pages), but not much. There is also some strange behavior in that it seems to start and stop the core and then start it again before the core fully loads the first time.
Either this is still bugged or the PET does need some system files that aren’t disclosed on the Github page for libretro VICE yet because I have all of those and none of them are called anything like what the log reports. I can try to get them myself but I have no idea what extension is expected because the log refers to them without an extension (perhaps they are extensionless?), i.e. “edit4b80”. Though at the same time those errors could just be a leftover from standalone VICE as in the calls not being removed for finding those but them not actually being needed in the libretro port. No way of knowing.
