psst: displays a blank screen on KDE Wayland

[dacioromero]

Describe the bug

On KDE using Wayland the window shows a background reflecting the user's color preferences, but doesn't show any content.

Steps To Reproduce

Steps to reproduce the behavior:

1. Install KDE
2. Login to Plasma Wayland
3. Launch Psst

Expected behavior

PSST should display properly as it does on other OS's.

Screenshots

Additional context

This had previously worked for me under Gnome Wayland before I switched to KDE and currently works under Arch with KDE Wayland. It works under XWayland with GDK_BACKEND=x11 since its GUI uses druid which depends on GTK3.

jpochyla/psst#211

Notify maintainers

@vbrandl @peterhoeg

Metadata

Please run nix-shell -p nix-info --run "nix-info -m" and paste the result.

 - system: `"x86_64-linux"`
 - host os: `Linux 6.2.2, NixOS, 23.05 (Stoat), 23.05.20230307.c707238`
 - multi-user?: `yes`
 - sandbox: `yes`
 - version: `nix-env (Nix) 2.13.3`
 - channels(root): `"nixos"`
 - channels(xxx): `"home-manager-22.05.tar.gz"`
 - nixpkgs: `/nix/var/nix/profiles/per-user/root/channels/nixos`

[peterhoeg]

Can you share the part of configuration.nix that relates to KDE? It’s working fine here on Plasma Wayland for me.

[dacioromero]

Sure that'd be my "firetower" configuration here. I have some local changes, so I'll get those up later today for your reference.

[dacioromero]

Not sure if it's a good test, but I was able to replicate this in a VM.

[dacioromero]

Just realized I made a mistake in my original issue, psst currently works on KDE Wayland not Gnome under Arch. Edited it.

[peterhoeg]

So you’re saying NixOS is OK and Arch is broken? In that case we can close this ticket, right?

[dacioromero]

Other way around: it worked on NixOS Gnome Wayland, doesn't work on NixOS KDE Wayland, and works on Arch KDE Wayland.

[peterhoeg]

I’m guessing an impurity in this case. psst depends on *something* at runtime which it doesn’t declare but which happens to be present on my machine (and on others not seeing this problem). When you’ve tried on both gnome and kde on NixOS, have you built different configurations using specializations or in different generations or are you just logging out of one environment and into the other?

[dacioromero]

This was an entirely new generation when I switched to KDE and an AMD GPU. This was the commit where I did that: dacioromero/nix-config@a412cf3.

Using a Gnome specialisation just now I was able to make psst work again, branch here: https://github.com/dacioromero/nix-config/tree/specialisations

[peterhoeg]

What happens if you enable both KDE and GNOME and then just choose the DE when logging in via SDDM?

[baduhai]

I have the same issue on Plasma Wayland.

[2023-03-17T15:54:42Z INFO  psst_gui::data::config] loading config: "/home/user/.config/Psst/config.json"
[2023-03-17T15:54:42Z INFO  psst_gui::webapi::local] parsing local tracks: "/home/user/.config/spotify/Users/haiwilliam0-user/local-files.bnk"

(psst-gui:15001): Gtk-CRITICAL **: 12:54:42.484: gtk_widget_set_size_request: assertion 'width >= -1' failed
[2023-03-17T15:54:42Z INFO  psst_core::audio::output::cpal] using audio device: "default"
[2023-03-17T15:54:42Z INFO  psst_core::cache] using cache: "/home/user/.cache/Psst"
[2023-03-17T15:54:42Z INFO  psst_core::audio::output::cpal] opening output stream: StreamConfig { channels: 2, sample_rate: SampleRate(44100), buffer_size: Default }
[2023-03-17T15:54:42Z INFO  psst_core::session::access_token] access token expired, requesting
[2023-03-17T15:54:43Z INFO  psst_gui::data::config] saved config: "/home/user/.config/Psst/config.json"
[2023-03-17T15:54:43Z INFO  psst_gui::data::config] saved config: "/home/user/.config/Psst/config.json"

[peterhoeg]

Strangely I'm seeing this too. Are you by chance still having this problem? Can you launch it from a terminal (works for me when I do that)?

[dacioromero]

Unfortunately that doesn't help, the issue is the same as when I first reported it

[toxx1220]

Same issue here. Plasma6 with Wayland
(psst-gui:12137): Gtk-CRITICAL **: 00:26:51.284: gtk_window_set_default_size: assertion 'width >= -1' failed


Package: psst-unstable-2024-04-01

[dacioromero]

I was reminded of this issue and found something related on druid's repo linebender/druid#2396

Adding "x11" to druid-shell's features in psst-gui/Cargo.toml, regenerating the lockfile, producing a patch file, and modifying the derivation makes psst work on KDE Wayland. Alternatively as mentioned before GDK_BACKEND=x11 also works.

EDIT: My branch for the fix: https://github.com/dacioromero/nixpkgs/tree/psst-x11. I'm not sure which route is better or if this should be fixed upstream

[SuperSandro2000]

This is clearly an upstream issue. Can you upstream your change, please?