What's the expected output?: SNEmulDS arm7dldi-twl (5aa8a9d) would behave the same on console as it does in no$gba.
What's the unexpected output?: Touchscreen input is not detected at all. Also, the language setting seems to be ignored (uses Japanese despite being set to English), and sound does not work in the latest build, although it did a few days ago.
The latter two issues are mitigated by launching the application using nds-bootstrap-hb instead of directly booting it, but touch is only partially detected, the submenus are still inaccessible despite responding to touch input.
I am directly launching the application through GodMode9i, TWiLight Menu++, or nds-hb-menu. Any of them will do and produce the same results in terms of direct boot.
Following the same process in no$gba does not produce the same results, and it functions as expected instead.
What's the NintendoDS Model you are using?: I am on a regular DSi, but users of other models have reported the same issues.