Could you please post how to compile openmsx for raspbian, I'm interested in checking source and fixing a problem.
--edit: the problem below disappeared after running lightdm just once, I tried to reproduce the problem afterward, tried several reboots, never happened. must be a bug were stuck between cpu legs
the problem is with loadstate, it returns to a black screen, the emulation though continues to work and I guess this state is loaded, I can press F10 and do things as usual, but can't see anything.
Only sometimes loadstate displays screen. I don't know what's going on, I guess the code fails to redraw /reinit the screen if an error occurs.
This only happens when openmsx running with lightdm stopped (need this so I can run it from emulationstation).
It is also helpful if openmsx can open zip and recognize dsk from rom using one option (e.g. openmsx -load xxx.dsk|xxx.zip|xxx.rom . I made a shell script to do that so I can integrate it with emulationstation.
Edited after discovering a previous error I reported about rom parsing failed unexpected end of data, is just warning that appears everytime I run openmsx and doesn't affect it, and that loadstate works normally when lightdm is running.