Larger "xterm" fonts on HIDPI displays

After several years of happily using different terminal emulators like Konsole , Gnome-TERMINAL , and lately XFCE Terminal in their appropriate desktop environments, I decided to use good old **xterm** with its **bitmap fonts**. It works just fine, it supports Unicode, and the default **fixed font family** contains characters from nearly all languages, which is great. But I came across an important problem. The fonts are really small. Even the so called *Huge* size (which is 10x20 bitmap font) is very small for me, and unusable. My default setting for the XFCE environment is set to 120 dpi, but xpdyinfo reports 97x97 DPI $ xdpyinfo |grep resolution resolution: 97x97 dots per inch So I tried to change the DPI with xrandr, but It didn't help. $ xrandr --dpi 120 The result seems to be applied $ xdpyinfo | grep resolution resolution: 120x120 dots per inch but it does not change the resolution of xterm at all. I have even tried to use scaling, but it affected the whole X, rather than a single application: $ xrandr --output LVDS1 --scale 0.5x0.5 There are workarounds for Qt and Gtk , but what about Xlib-based applications like Xterm, Xcalc, Xman, Xfige, etc? *Should we watch them fade away, as the display DPI goes up? Please Help if you know any workarounds.* ----------- *This is what I have done, which worked somehow, but I couldn't be able to use the original "fixed font family", so it may now work for some languages only.* ----------- PS1: I have installed 100 DPI fonts for X, but I couldn't use them $ sudo apt-get install xfonts-100dpi PS2: Fontforge which also uses Xlib, uses a nice theme and normal font sizes. I don't know how it does that. PS3: I am testing otf2bdf and bdftopcf utiliites to create experimental PCF bitmap fonts for HIDPI from vector TTF/OTF fonts. PS4: After installing 100DPI fonts, this was good, although it lacks great language support of the default fixed font. $ xterm -font -Adobe-Courier-Bold-r-Normal-*-34-*-100-100-*-*-*-* I have used fontsel. It is really helpful. PS5: This is also useful. PS6: I could be able to create 120DPI bitmap font from **Courier New** with 20pt $ otf2bdf -p 20 -r 120 cour.ttf > cour.bdf $ bdftopcf cour.bdf | gzip - > cour.pcf.gz $ sudo cp cour.pcf.gz /usr/share/fonts/X11/misc/ $ fc-cache $ xterm -font -*-*-*-*-*-*-*-*-120-120-*-*-*-* PS7: 75 DPI is hardcoded in the BDF font. Maybe changing it will help. PS8: vncdesk is a good tool to use to scale up a single window .