Gentoo Linux / Openbox: Maximize, Fullscreen does not work as expected

[mcctuxic]

Issue Description

System: Gentoo Linux (stable), updated this morning. Openbox 3.6.1, nvidia RTX 2060 super, nvidia-drivers 570.181

The config file I use for ghostty

keybind = ctrl+shift+left=new_split:left
keybind = ctrl+shift+right=new_split:right
keybind = ctrl+shift+up=new_split:up
keybind = ctrl+shift+down=new_split:down
theme = /home/mccramer/.local/share/ghostty/themes/ayu
cursor-style = underline
window-decoration = false
fullscreen = true
maximize = true

I tried variation using only maximize or only fullscreen also.

Expected behaviour: When starting ghostty it will fill the whole screen.
Actual behaviour : When starting ghostty it fills the quarter of the screen and sits at the upper left corner.

Expected Behavior

Expected behaviour: When starting ghostty it will fill the whole screen.

Actual Behavior

Actual behaviour : When starting ghostty it fills the quarter of the screen and sits at the upper left corner.

Reproduction Steps

start ghostty

Ghostty Logs

info: ghostty version=1.1.4-main+0dc324607
info: ghostty build optimize=ReleaseFast
info: runtime=apprt.Runtime.gtk
info: font_backend=font.main.Backend.fontconfig_freetype
info: dependency harfbuzz=11.0.0
info: dependency fontconfig=21402
info: renderer=renderer.generic.Renderer(renderer.OpenGL)
info: libxev default backend=io_uring
info(os_locale): setlocale from env result=LC_CTYPE=en_US.utf8;LC_NUMERIC=en_US.utf8;LC_TIME=en_US.utf8;LC_COLLATE=C.UTF-8;LC_MONETARY=en_US.utf8;LC_MESSAGES=en_US.utf8;LC_PAPER=en_US.utf8;LC_NAME=en_US.utf8;LC_ADDRESS=en_US.utf8;LC_TELEPHONE=en_US.utf8;LC_MEASUREMENT=en_US.utf8;LC_IDENTIFICATION=en_US.utf8
info(gtk): GTK version build=4.16.13 runtime=4.16.13
info(gtk): libadwaita version build=1.6.2 runtime=1.6.2
info: reading configuration file path=/home/user/.config/ghostty/config
info(config): default shell source=env value=/bin/zsh
warning(gtk_ghostty_application): setting GDK_DEBUG=
warning(gtk_ghostty_application): setting GDK_DISABLE=gles-api,color-mgmt,vulkan
Unrecognized value "color-mgmt". Try GDK_DISABLE=help
info(gtk_ghostty_application): cgroup isolation disabled via config=config.Config.LinuxCgroup.single-instance
info(opengl): loaded OpenGL 4.6
info(io_exec): found Ghostty resources dir: /home/user/.local/share/ghostty
info(io_exec): shell integration automatically injected shell=termio.shell_integration.Shell.zsh
warning(gtk_ghostty_application): unimplemented action=apprt.action.Action.Key.cell_size
info(io_exec): started subcommand path=/bin/sh pid=23806
info(io_exec): subcommand cgroup=-

(ghostty:23781): Gdk-WARNING **: 05:06:19.366: eglExportDMABUFImage failed: 0x3009

(ghostty:23781): Gdk-WARNING **: 05:06:19.380: eglExportDMABUFImage failed: 0x3009

The last message repeats forever...

Ghostty Version

Ghostty 1.1.4-main+0dc324607

Version
  - version: 1.1.4-main+0dc324607
  - channel: tip
Build Config
  - Zig version   : 0.14.1
  - build mode    : builtin.OptimizeMode.ReleaseFast
  - app runtime   : apprt.Runtime.gtk
  - font engine   : font.main.Backend.fontconfig_freetype
  - renderer      : renderer.generic.Renderer(renderer.OpenGL)
  - libxev        : io_uring
  - kernel version: 6.12.41-gentoo-dist
  - desktop env   : other
  - GTK version   :
    build         : 4.16.13
    runtime       : 4.16.13
  - libadwaita    : enabled
    build         : 1.6.2
    runtime       : 1.6.2
  - libX11        : enabled
  - libwayland    : disabled

OS Version Information

Gentoo Linux stable, updated this morning

(Linux only) Display Server

X11

(Linux only) Desktop Environment/Window Manager

Openbox 3.6.1

Minimal Ghostty Configuration

keybind = ctrl+shift+left=new_split:left
keybind = ctrl+shift+right=new_split:right
keybind = ctrl+shift+up=new_split:up
keybind = ctrl+shift+down=new_split:down
theme = /home/mccramer/.local/share/ghostty/themes/ayu
cursor-style = underline
window-decoration = false
fullscreen = true
maximize = true

Additional Relevant Configuration

Nvidia RTX 2060 , nvidia-drivers 570.181

I acknowledge that:

• I have reviewed the FAQ and confirm that my issue is NOT among them.
• I have searched the Ghostty repository (both open and closed Discussions and Issues) and confirm this is not a duplicate of an existing issue or discussion.
• I have checked the "Preview" tab on all text fields to ensure that everything looks right, and have wrapped all configuration and code in code blocks with a group of three backticks (```) on separate lines.

[mitchellh]

This sounds like potentially a GTK issue. All we do when those are set are call the gtk_window_maximize (or fullscreen) functions. Nothing else.

[00-kat]

To OP: could you try another GTK 4 + libadwaita application like gnome-text-editor, gnome-clocks, or ptyxis?

[mcctuxic]

Sorry for the question...what/how should I check?
I installed gnome-text-editor (I am not using a gnome desktop...just openbox) but I don't know the equivalent for
"fullscreen" or "maximize" when it comes to gnome-text-editor. There are no man pages.

[00-kat]

Fullscreen is in the hamburger menu:

[mcctuxic]

I am using gnome-text-editor 47.4. The hamburger menu hasn't such an entry. I wanted to include an snapshot, but 'attach file' doesn't work and wgetpaste didn't work either (server failure). Pressing F11 does nothing but since it is not in the menu it is unclear, whether it is supported or not.

[gtaubman]

@mitchellh Setting a keybind to toggle fullscreen and triggering that does make the terminal full screen, but the "fullscreen = true" config option doesn't seem to be triggering fullscreen when starting a new terminal.

[mcctuxic]

I additionally installed gnome-extra/gnome-clocks-47.0.
It also does not have any "fullscreen" entry in the hamburger menu.

Please do not close this issue because I am answering irregulary. Due to urgent
family reasons I may not have access to a computer for the next five weeks (+/- some days).
Nonetheless I will try my best to reply.

[mcctuxic]

May be this is a hint, what is going on:

• starting ghostty via the openbox-menu: quarter sized sitting at the left most place on the screen
• in rc.xml (openbox config) there is this defined:
  
  
  
• Pressing ALT-F10 maximizes ghostty (which is at most a workaround, because it is somehow clumsy to
  do every time I need a terminal.
  ALT-F10 maximizes any window, though, but it proves, that ghostty isn't maximizable at all.

[rhodes-b]

I just tested 1.2 on gnome its working just fine for me (both fullscreen and maximize)
toggle_maximize / toggle_fullscreen action with the command palette also works for me

[Jcoth]

I have a problem with "maximize", it doesn't work on Linux Mint 22.2 "Zara"

[fiskryeziu]

same here had to use the keybind to toggle :

 keybind = ctrl+f=toggle_maximize

[kmf]

Same Ubuntu 24.04 ignores

maximize = true
fullscreen = true

[Jcoth]

makes sense, since Mint is based on Ubuntu 24.04 LTS, hope this is resolved.

[ClementDreptin]

I just tested with:

• Ubuntu 24.04 LTS
• Gnome
• Wayland
• Ghostty 1.2

and the maximize and fullscreen config options don't seem to have any effect. Mitchell suggested it might be a GTK issue, but I don't think that's the case because the toggle_maximize and toggle_fullscreen commands from the command palette work as expected.

My Ghostty logs are very similar to the ones from the original message with only subtle differences about user preferences like the locale.

Here is my ghostty --version output:

Ghostty 1.2.0

Version
  - version: 1.2.0
  - channel: stable
Build Config
  - Zig version   : 0.14.1
  - build mode    : builtin.OptimizeMode.ReleaseFast
  - app runtime   : apprt.Runtime.gtk
  - font engine   : font.main.Backend.fontconfig_freetype
  - renderer      : renderer.generic.Renderer(renderer.OpenGL)
  - libxev        : io_uring
  - kernel version: 6.14.0-29-generic
  - desktop env   : other
  - GTK version   :
    build         : 4.14.5
    runtime       : 4.14.5
  - libadwaita    : enabled
    build         : 1.5.0
    runtime       : 1.5.0
  - libX11        : enabled
  - libwayland    : enabled

[lutalli]

I was experiencing the same issue both on Ubuntu 24.04.3 LTS and Ubuntu 25.04 using Ghostty 1.2.0 stable. Today I switched to CachyOS and am now using Ghostty 1.2.0-arch1 (tip). The issue disappeared, maximize and fullscreen function properly at startup. Not sure if it's a recent commit or something else that fixed it.

My output of ghostty --version:

Ghostty 1.2.0-arch1

Version
  - version: 1.2.0-arch1
  - channel: tip
Build Config
  - Zig version   : 0.14.1
  - build mode    : builtin.OptimizeMode.ReleaseFast
  - app runtime   : apprt.Runtime.gtk
  - font engine   : font.main.Backend.fontconfig_freetype
  - renderer      : renderer.generic.Renderer(renderer.OpenGL)
  - libxev        : io_uring
  - kernel version: 6.17.0-3-cachyos
  - desktop env   : gnome
  - GTK version   :
    build         : 4.18.6
    runtime       : 4.20.2
  - libadwaita    : enabled
    build         : 1.7.7
    runtime       : 1.8.0
  - libX11        : enabled
  - libwayland    : enabled

[akileshas]

i am also experiencing this same issue in Ubuntu 24.04.3 LTS.

my output of ghostty --version:

(base) akileshas@asa:~$ ghostty --version
Ghostty 1.2.1-dev+0000000

Version
  - version: 1.2.1-dev+0000000
  - channel: tip
Build Config
  - Zig version   : 0.14.0
  - build mode    : builtin.OptimizeMode.ReleaseFast
  - app runtime   : apprt.runtime.Runtime.gtk
  - font engine   : font.backend.Backend.fontconfig_freetype
  - renderer      : renderer.generic.Renderer(renderer.OpenGL)
  - libxev        : io_uring
  - kernel version: 6.14.0-29-generic
  - desktop env   : other
  - GTK version   :
    build         : 4.14.5
    runtime       : 4.14.5
  - libadwaita    : enabled
    build         : 1.5.0
    runtime       : 1.5.0
  - libX11        : enabled
  - libwayland    : enabled
(base) akileshas@asa:~$

and my ghostty config

(base) akileshas@asa:~$ cat ~/.config/ghostty/config
font-family = "FiraCode Nerd Font"
font-size = 17
background = #000000
window-padding-x = 10
window-padding-y = 5
window-padding-balance = true
maximize = true
theme = TokyoNight Night
window-decoration = none
cursor-style = block
cursor-style-blink = false
shell-integration-features = no-cursor,sudo
(base) akileshas@asa:~$

my system specs

(base) akileshas@asa:~$ fastfetch --logo none
akileshas@asa
-------------
OS: Ubuntu 24.04.3 LTS x86_64
Host: Predator PHN16-71 (V1.15)
Kernel: Linux 6.14.0-29-generic
Uptime: 1 hour, 6 mins
Packages: 1677 (dpkg), 60 (nix-default), 16 (snap)
Shell: bash 5.2.21
Display (LG Electronics 32"): 2560x1440 in 32", 144 Hz [External] *
Display (AUOD7A7): 1920x1200 in 16", 165 Hz [Built-in]
DE: GNOME 46.0
WM: Mutter (Wayland)
WM Theme: Yaru-blue-dark
Theme: Yaru-blue-dark [GTK2/3/4]
Icons: Yaru-blue [GTK2/3/4]
Font: Ubuntu Sans (11pt) [GTK2/3/4]
Cursor: Yaru (24px)
Terminal: WezTerm 20250909-070512-bf9a2aee
Terminal Font: JetBrains Mono
CPU: 13th Gen Intel(R) Core(TM) i7-13700HX (24) @ 5.00 GHz
GPU 1: NVIDIA GeForce RTX 4050 Max-Q / Mobile [Discrete]
GPU 2: Intel UHD Graphics 770 @ 1.55 GHz [Integrated]
Memory: 3.85 GiB / 15.34 GiB (25%)
Swap: 0 B / 4.00 GiB (0%)
Disk (/): 67.27 GiB / 936.79 GiB (7%) - ext4
Local IP (enp109s0): 192.168.1.9/24
Battery (AP21A5T): 100% [AC Connected]
Locale: en_US.UTF-8
(base) akileshas@asa:~$

the output of the command uname -a:

(base) akileshas@asa:~$ uname -a
Linux asa 6.14.0-29-generic #29~24.04.1-Ubuntu SMP PREEMPT_DYNAMIC Thu Aug 14 16:52:50 UTC 2 x86_64 x86_64 x86_64 GNU/Linux
(base) akileshas@asa:~$

[Mairex1337]

Same issue for me on Ubuntu 24.04.3 LTS. The keybind for 'toggle_fullscreen' is working as expected though.

[gtaubman]

Confirming the same problem on Ubuntu 24.04.3 LTS.

[MattBonacini]

I'm on Debian, and I have a similar problem. I'm not looking to set it fullscreen but when Ghostty is open I get:

"(ghostty:23781): Gdk-WARNING **: 05:06:19.366: eglExportDMABUFImage failed: 0x3009" repeated to infinity in my .xsession-errors file.

I realized this because that file got to 25GB+ in size. Since Ghostty works I would just like to disable this logging but found nothing on how to do it.

Output of my version:

 ~ ❯ ghostty --version
Ghostty 1.2.0

Version
  - version: 1.2.0
  - channel: stable
Build Config
  - Zig version   : 0.14.0
  - build mode    : builtin.OptimizeMode.ReleaseFast
  - app runtime   : apprt.Runtime.gtk
  - font engine   : font.main.Backend.fontconfig_freetype
  - renderer      : renderer.generic.Renderer(renderer.OpenGL)
  - libxev        : io_uring
  - kernel version: 6.12.48+deb13-amd64
  - desktop env   : other
  - GTK version   :
    build         : 4.18.6
    runtime       : 4.18.6
  - libadwaita    : enabled
    build         : 1.7.7
    runtime       : 1.7.7
  - libX11        : enabled
  - libwayland    : enabled

My config is quite minimal:

background-opacity = 0.7
background=#1e1e2f

font-family = Fira Code Nerd Font


window-padding-x = 8
window-padding-y = 8

window-decoration = none
gtk-opengl-debug = false

[rhodes-b]

Ghostty isn't logging those errors GTK is you probably have error logs other places too like dmesg or your compositor etc.
there isn't just a easy way to disable them either. I can't even find a good answer online they are either all saying just pipe the output to /dev/null or fix the errors, ghostty definitely cant fix those errors are they are all from within GTK.