[garbear]

I have never used RetroPlayer before (been a die-hard RetroArch fan for years now) and was wondering if there were any good guides (written or video) that show me how to use and get the most out of it?

Unfortunately RetroPlayer isn't very straightfoward to set up because we lack a game database. I've tried to write one several times and always failed because Kodi's database code is unruly. So basically add-ons are the only way to use RetroPlayer fully. I see you found IAGL, that's what I use, and I enjoy the experience.

Another problem is that we have too may cores for a good UX. I took the shotgun approach of porting everything, and letting add-on authors sort out which cores are best. The ultimate solution is some kind of lookup table for different games/cores/platforms/systems, but I've never created one.

Until these two problems are solved, RetroPlayer is more of a "toolbox" and "kitchen sink" for add-on authors to make the best of.

For example, I wanted to set up RetroAchievements in RetroPlayer but had no idea how.  After a lot of looking, I finally found the setting and put in my username and password.  However, it is telling me that my account is not verified and to check my email.  But nothing shows up in my email.  Am I doing something wrong or did I find another bug?  Thank you.

I've gotten reports that Achievements have broken since RetroAchievements support was implemented in GSoC 2021. Patches welcome, but I'll probably get around to fixing this after my Player Manager is done.

Actually, I think I did just find something.  I was trying out an Atari 2600 game (Pitfall) and was able to download the Stella addon and everything played just fine.  I then tried playing Super Mario Bros. using the Mesen addon and Kodi just crashed on me.  I looked at the logs and the last line in the log was "2024-01-17 18:56:48.919 T:14252   error <general>: IAGL:  Status of launch is unknown for Super Mario Bros., current window id 9999".  I also uploaded the entire log here (https://pastebin.com/rrPdznw8).  I then tried with the FCEUMM addon and it worked just fine.  Let me know if there is anything else you need. 

You've caught a bug in what I call the "long tail". After getting 90% of emulators to work, there are still millions of edge cases in the last 10% that have to be hunted down manually, and the only way is for as many people (like yourself) to try stuff and see what breaks, then I can hook up a debugger and invest time into fixing the problem.

The debug log was all I needed to hunt down the problem. We initialize cores in a slightly different manner from RetroArch, but because cores are only ever tested with RetroArch, they aren't made very robust and these problems aren't surfaced until things break for Kodi.

The problem with Mesen is fixed in https://github.com/kodi-game/game.libretro/pull/121 . Thanks again for the debug log. I'll do a test build shortly and you can confirm that Mesen loads.