Tux Typing’s display options predate today’s screens, so its window behavior surprises people: tiny on a 4K monitor, stretched on a wide one, or stuck at one size. Here is how fullscreen and window sizing actually work in this program, and the settings that tame them.
Fullscreen: How to Toggle It
Use the game’s own display option (Options menu) to switch between windowed and fullscreen. There is no modern borderless mode — fullscreen here means the classic kind, which on today’s systems usually scales the game’s fixed-resolution picture to fill the screen.
Common Problems and Fixes
| Symptom | Cause | Fix |
|---|---|---|
| Tiny window on a high-resolution screen | The game’s picture is fixed-resolution; Windows scaling does not magnify it | Use fullscreen, or set Windows display scaling before launch; on the shortcut’s Compatibility tab, try ‘Override high DPI scaling’ → System |
| Stretched or squished picture | Aspect ratio is stretched to the panel | Prefer fullscreen on a 16:9/16:10 display; windowed mode keeps the true proportions |
| Black bars at the sides | Normal: the game preserves its aspect ratio in fullscreen | Not a fault — leave it, or play windowed |
| Game opens off-screen (dual monitors) | It remembers a display that is gone | Windowed mode, drag it back, then re-enable fullscreen |
Classroom Note
Fullscreen is the right default on shared machines: larger letters and fish, fewer distractions, and no accidental clicks outside the window. Set it once per machine along with the other defaults in our settings guide. If fullscreen causes stutter on a particular PC, that machine’s trade-off is covered in slow & laggy — windowed plus a driver update usually resolves it.
Linux and Chromebook
The same fixed-resolution logic applies in distro and Flatpak builds; your desktop’s scaling applies to the window. In the Chromebook Linux container, the game’s window is a Linux window — resize it like other Linux app windows, and expect letterboxing in fullscreen on very wide Chromebooks.