Without seeing your code, it's hard to see. The DejaVuSansMono.ttf from Debian certainly supports greek:
#!perl -w
use strict;
use Imager;
# no greek support in ImUgly.ttf
#my $fontfile = "fontfiles/ImUgly.ttf";
my $fontfile = "/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType/DejaVuSansMono.ttf";
my $font = Imager::Font->new(file => $fontfile, aa => 1)
or die "Cannot open font file $fontfile: ", Imager->errstr, "\n";
my $text = chr(0x3a3); # GREEK CAPITAL LETTER SIGMA
my $im = Imager->new(xsize => 100, ysize => 50);
$im->align_string
(
x => 50,
y => 25,
halign => "center",
valign => "center",
font => $font,
size => 40,
color => '#FFF',
string => $text
)
or die $im->errstr;
$im->write(file => "utf8text.ppm")
or die "Cannot write utf8text.ppm:", $im->errstr, "\n";
You also don't say what results you get when you attempt to output greek text, I'd suspect an encoding issue if you're seeing apparently random text.
If you are seeing random text, it's possible you need to either mark the text as utf8, or tell Imager that the text is utf8, by supplying utf8 => 1 to the align_string() call.
I also did a test with use utf8; and setting $text to a literal sigma inline, this worked for me.
