@willianholtz Consider using the package in extra as long as it is working. A while ago, there were issues with segfault when loading roms, as you describe. It was fixed, but possibly returned.
Last time it happened, the cause was LTO. But the package has LTO disabled. I also rebuilt it and am unable to reproduce your issue. However, on some machines, with some other packages, there have been issues where LTO appears to be enabled even though the package has it disabled. I don't know the cause.
Pinned Comments
dpeukert commented on 2020-04-10 12:34 (UTC) (edited on 2020-09-26 17:48 (UTC) by dpeukert)
The PKGBUILD for this package is hosted here (contributions are welcome!): https://gitlab.com/dpeukert/pkgbuilds/tree/main/dolphin-emu-git