Apps take 1-3 seconds to launch

[madser123]

Already reported ? *

• I have searched the existing open and closed issues.

Regression?

I don't know, I started using Hyprland only recently

System Info and Hyprland Version

System/Version info

Hyprland 0.45.2 built from branch v0.45.2-b at commit 12f9a0d0b93f691d4d9923716557154d74777b0a  ([gha] Nix: update inputs).
Date: 2024-11-19
Tag: v0.45.2, commits: 12f9a0d0b93f691d4d9923716557154d74777b0a
built against aquamarine 0.4.4


flags set:
debug


System Information:
System name: Linux
Node name: desktop
Release: 6.6.77
Version: #1-NixOS SMP PREEMPT_DYNAMIC Tue Feb 11 08:37:33 UTC 2025


GPU information:
08:00.0 VGA compatible controller [0300]: NVIDIA Corporation GA104 [GeForce RTX 3070] [10de:2484] (rev a1) (prog-if 00 [VGA controller])
NVRM version: NVIDIA UNIX x86_64 Kernel Module  565.77  Wed Nov 27 23:33:08 UTC 2024


os-release: ANSI_COLOR="1;34"
BUG_REPORT_URL="https://github.com/NixOS/nixpkgs/issues"
BUILD_ID="24.11.20250217.c618e28"
CPE_NAME="cpe:/o:nixos:nixos:24.11"
DEFAULT_HOSTNAME=nixos
DOCUMENTATION_URL="https://nixos.org/learn.html"
HOME_URL="https://nixos.org/"
ID=nixos
ID_LIKE=""
IMAGE_ID=""
IMAGE_VERSION=""
LOGO="nix-snowflake"
NAME=NixOS
PRETTY_NAME="NixOS 24.11 (Vicuna)"
SUPPORT_END="2025-06-30"
SUPPORT_URL="https://nixos.org/community.html"
VARIANT=""
VARIANT_ID=""
VENDOR_NAME=NixOS
VENDOR_URL="https://nixos.org/"
VERSION="24.11 (Vicuna)"
VERSION_CODENAME=vicuna
VERSION_ID="24.11"


plugins:

Description

Note

While this may look like #9454 there some fundamental differences from my problem to the problem described in the other issue.

Whenever i try to launch an app (Through exec, Wofi, directly from the terminal or any other way) it takes around 1-3 seconds for it to "pop-up" in hyprland.

EDIT: Both wofi and swaync are the only apps that actually start as quickly as they should (They are overlays, so i don't know if that makes a difference), while other apps that need an actual window e.g. Ghostty, Firefox and more, don't.

I've tried everything i could find on the wiki, old github issues and on other forums. Nothing seems to fix it.

I've tested this on versions 0.45.2 and 0.47.2 - The issue occurs on both versions.
I've also tested on two different machines: My main pc with an nvidia card and a laptop with integrated AMD graphics. The issue also occurs on both of these.

I have both xdg-desktop-portal-hyprland, xdg-desktop-portal-wlr and xdg-desktop-portal-gtk installed.

I have added the dbus-update-activation-environment to my exec-once as described in the wiki.

I have checked journalctl for any weird logs, but nothing seems to stand out there either.

Nothing i've tried so far seems to work, and i don't know how to debug any further.

My full nixos and home-manager config can be seen here if needed: https://github.com/madser123/nixconf

The hyprland-specific configuration can be found in home/shared/hyprland.nix (home-manager) and config/shared/hyprland.nix (nixos)

How to reproduce

1. Use my nixos config
2. Launch an app in hyprland

Attach not paste

• I understand that all text files must be attached, and not pasted directly. If not respected, this issue will likely get closed as spam

Checklist of files to include below

• Hyprland config - hyprctl systeminfo -c (always include)
• Crash report (always include in case of crash)
• Video (always include in case of a visual bug)
• Logs (might contain useful info such as errors)

Additional info & File uploads

hyprsysinfo.txt

[ikalco]

try this
dbus-lanuch ${APP}
ex. dbus-launch waybar

[madser123]

Tried launching both firefox and ghostty for testing - No difference from launching otherwise, unfortunately :/

[madser123]

I switched from Ghostty to Rio for my terminal, which seemed to resolve the issue.. So maybe it has something to do with GTK based apps? Just a thought - Nothing concrete.

Just a note: Firefox still launches slow, so the issue is not entirely resolved, as i still don't know why this happens.

[ikalco]

try checking the logs of xdg portal gtk in systemd

ive seen similar issues and they're usually related to xdg portals and dbus stuff

[madser123]

jounalctl | grep "bus" -i
journalctl | grep "portal" -i

I tried looking into this via. Journalctl, but can't seem to find anything that should be failing to launch the apps or alike - I will look further, but i'm not sure if i'm looking in the right spot.

[madser123]

I switched from Ghostty to Rio for my terminal, which seemed to resolve the issue

A correction on this statement. When launching rio for the first time, during a session, it still takes around 3 seconds to launch. Afterwards, it is pretty much instant.