macOS: initial maximized-by-default window height (via clamping) is bigger than screen size

[fooness]

Hello. First day in the beta, first maybe-issue I experienced so far.

I’m on macOS Sequoia 15.1.1, running Ghostty 0.1.0-main+5dcca190.

When starting Ghostty, the bigger-than-screen-size configured window — via the values window-height and window-width — is seemingly being clamped to the correct available screen width, but the window height is a little bit bigger than the screen height. The issue is reproducible on my Macbook-internal screen, as well as on an external monitor.

The attached screenshot shows that the tmux statusbar is basically lower than the bottom screen boundary.

#macos-non-native-fullscreen = false

window-decoration = false

window-height = 80 # also tried 1000 and other numbers
window-width = 320 # also tried 1000 and other numbers

window-padding-x = 8 # issue is reproducible with 2 (default) and 0
window-padding-y = 6 # issue is reproducible with 2 (default) and 0
window-padding-balance = false
window-padding-color = extend

Please let me know what other information I could provide, or what other things I could try.

I searched for and read through other issues, some linked below:

• https://github.com/ghostty-org/ghostty/issues?q=clamp
• https://github.com/ghostty-org/ghostty/issues?q=is%3Aissue%20state%3Aopen%20window%20decoration
• Clamp initial window size configurations to screen size #2151
• Crash on macOS when launching with very large window width and height and no window decoration #2145
• macOS: window size doesn't seem to get re-clamped after external monitor disconnected #2462

PS: At least one other person on Discord was not able to reproduce the problem.

[fooness]

Slight digression: I might have found a workaround or alternative solution to achieving what I thought to be the same end result; turns out this approach only achieves the end result of an initial maximized-by-default window as long as e.g. connecting, disconnecting, or switching displays, as then the window is no longer fullscreen, and the window decorations appears and rounded corners are rendered.

-  #macos-non-native-fullscreen = false          # note: was commented
+  macos-non-native-fullscreen = visible-menu    # note: is un-commented

-  window-decoration = false     # note: was un-commented
+  #window-decoration = false    # note: is commented

-  window-height = 80     # note: was un-commented
+  #window-height = 80    # note: is commented
-  window-width = 320     # note: was un-commented
+  #window-width = 320    # note: is commented

window-padding-x = 8 # issue is reproducible with 2 (default) and 0
window-padding-y = 6 # issue is reproducible with 2 (default) and 0
window-padding-balance = false
window-padding-color = extend

This workaround approach does not really work for me and my specific needs, but — assuming the described behavior is intended, i.e. don’t remember fullscreen state if displays change, I don’t see any “wrong” behavior or bugs with this approach/configuration/setup.

[the-main-thing]

I am having this issue when window-decoration = false
Removing this setting and using macos-titlebar-style = hidden works, but obviously this is not the same experience =)