gnuplot qt终端中的重音字符

Question

我一直在尝试制作一个gnuplot图像作为训练练习。我无法生成重音字符。这是我的配置：

            G N U P L O T   
    Version 5.0 patchlevel 3    
last modified 2016-02-21 
terminal type is qt 0 enhanced font "LiberationSans,12" 
fontpath is 
            system fontpath is 
"/usr/share/ghostscript/fonts"  
gnuplot LC_CTYPE pt_BR.UTF-8    
gnuplot encoding   utf8
gnuplot LC_TIME    pt_BR.utf8
gnuplot LC_NUMERIC C

如果我输入类似

的内容

set title "Órgão"; plot sin(x);

在终端显示

set title "\U+FFC3rg\U+FFC3\U+FFA3o"

结果图只是排除了所有重音字符。我甚至尝试使用“svg终端”无济于事。