3 ms·

It's probably because the env from the host system is sandboxed. You should explicitly set the DISPLAY somehow when you run the snap

• amelius 3y ago
  That's strange because xeyes (not a snap app) worked just fine, so $DISPLAY was certainly set.
  • sph 3y ago
    That's because xeyes is not sandboxed, snaps are. They don't automatically inherit the environment.
    • chasil 3y ago
      Would it be as simple as:? DISPLAY="$DISPLAY" gimp
      • sph 3y ago
        I don't run Ubuntu so I wouldn't know, but the other sandbox system I know, Docker, has its own syntax to set environment variables. It's worth having a look at the man pages. DISPLAY="$DISPLAY" gimp This is a no-op. It sets DISPLAY in the current env with the value of DISPLAY in the current env. Processes spawned from the shell already inherit the current environment (unless they're running in a separate namespace, of course)