Can not run 2d test because of "language"

[MarkJeronimus]

On this particular embedded computer with ARM processor and outdated Debian (Lilliput PC-701), all default tests run. But when selecting a 2D test, after letting it complete it's graphical show, it quits with:

Run: "2D graphics: aa polygons": perl: warning: Setting locale failed.
perl: warning Please that your locale settings:
LANGUAGE=en_US.UTF-8,
LC_ALL=en_US.UTF-8,
LANG=en_US.UTF-8
are all supported and installed on your system.
perl: warning: falling back to the standard locale ("C").; aborting

After sudo apt install locales (which I didn't have) and running locale-gen en_US.UTF-8, it still fails in the same way.

[843723683]

On this particular embedded computer with ARM processor and outdated Debian (Lilliput PC-701), all default tests run. But when selecting a 2D test, after letting it complete it's graphical show, it quits with:

Run: "2D graphics: aa polygons": perl: warning: Setting locale failed.
perl: warning Please that your locale settings:
LANGUAGE=en_US.UTF-8,
LC_ALL=en_US.UTF-8,
LANG=en_US.UTF-8
are all supported and installed on your system.
perl: warning: falling back to the standard locale ("C").; aborting

After sudo apt install locales (which I didn't have) and running locale-gen en_US.UTF-8, it still fails in the same way.

Hi
What is the command you run？

[MarkJeronimus]

Turns out uxterm had the same issue (i used xterm before).

I had to edit /etc/locale.gen and uncomment the line with en_US.UTF-8 in it, and run locale-gen. Then it worked.

It's still weird why a graphical test relies on a locale. Anyway to solve that?