WezTerm freezes on restoring session.

[Tanish2002]

Hi, thanks for the plugin.

I tried to use this in my config:

local resurrect = wezterm.plugin.require("https://github.com/MLFlexer/resurrect.wezterm")
resurrect.periodic_save()
...
  {
    key = "w",
    mods = "ALT|SHIFT",
    action = wezterm.action_callback(function(win, pane)
      resurrect.save_state(resurrect.workspace_state.get_workspace_state())
      resurrect.window_state.save_window_action()
    end),
  },
...
wezterm.on("smart_workspace_switcher.workspace_switcher.created", function(window, path, label)
  local workspace_state = resurrect.workspace_state
  workspace_state.restore_workspace(resurrect.load_state(label, "workspace"), {
    window = window,
    relative = true,
    restore_text = true,
    on_pane_restore = resurrect.tab_state.default_on_pane_restore,
  })
end)

The session saves fine, but when I try to restore a session by simply using smart_workspace_switcher and then opening my previous zoxide directory. Wezterm straight up freezes nothing works.

I don't know what logs you would expect from me, but here is the saved workspace state(Please feel free to ask for any other logs):

{
  "window_states": [
    {
      "size": {
        "cols": 221,
        "dpi": 96,
        "pixel_height": 861,
        "pixel_width": 1768,
        "rows": 41
      },
      "tabs": [
        {
          "is_active": false,
          "is_zoomed": false,
          "pane_tree": {
            "alt_screen_active": false,
            "cwd": "/home/weeb/nixos-config",
            "domain": "local",
            "height": 41,
            "index": 0,
            "is_active": true,
            "is_zoomed": false,
            "left": 0,
            "pixel_height": 861,
            "pixel_width": 1768,
            "text": "\r\n\u001b(B\u001b[0;1m\u001b[36m~/nixos-config\u001b(B\u001b[0m \r\n\u001b(B\u001b[0;1m\u001b[35m❯\u001b(B\u001b[0m \r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\u001b(B\u001b[0m",
            "top": 0,
            "width": 221
          },
          "title": ""
        },
        {
          "is_active": true,
          "is_zoomed": false,
          "pane_tree": {
            "alt_screen_active": true,
            "cwd": "/home/weeb/nixos-config",
            "domain": "local",
            "height": 41,
            "index": 0,
            "is_active": true,
            "is_zoomed": false,
            "left": 0,
            "pixel_height": 861,
            "pixel_width": 1768,
            "process": {
              "argv": [
                "/nix/store/p6k7xp1lsfmbdd731mlglrdj2d66mr82-bash-5.2p37/bin/bash",
                "/nix/store/hbdrhm4w2nsjhl2aff9cfqdwrqqx3pgk-scripts/bin/.pipes-wrapped"
              ],
              "cwd": "/home/weeb/nixos-config",
              "executable": "/nix/store/p6k7xp1lsfmbdd731mlglrdj2d66mr82-bash-5.2p37/bin/bash",
              "name": ".pipes-wrapped",
              "start_time": 338194,
              "status": "Sleep"
            },
            "top": 0,
            "width": 221
          },
          "title": ""
        }
      ],
      "title": ""
    }
  ],
  "workspace": "~/nixos-config"
}

[Tanish2002]

from what I've figured out, it's struggling to resurrect inside the current window.

If i remove the following from workspace_state.restore_workspace(resurrect.load_state(label, "workspace"), {

window = window,

then it works fine, it just opens the workspace in a new window.

[Tanish2002]

Found the problematic part, I believe, this line causes the issue. If I comment it out then everything works fine:

resurrect.wezterm/plugin/resurrect/workspace_state.lua

Line 21 in c8d684a

opts.window:gui_window():set_inner_size(window_state.size.pixel_width, window_state.size.pixel_height)

[MLFlexer]

Thank you very much for the detailed description and investigation! 😄

I would be interested to know if you changing resolution, like when switching monitors?

And can you replicate it and then check the output of the debug menu? The default keybindings to open it is CTRL+SHIFT+L
If this does not work because it is freezing, then it would be great if you can try with wezterm start --always-new-process and check the output. There might be a printed error, which could give a better indication of what is wrong.

[Tanish2002]

Hi @MLFlexer,

I don't have a separate monitor so no, I didn't do anything like that.

As for the debug menu, I can't access it due to terminal completely freezing.
Unfortunately when I try to debug using wezterm start --always-new-process, no error is printed, just the spawned term freezes which I can close by CTRL+C on the original term window which was used to spawn it.

[MLFlexer]

Hi @MLFlexer,

I don't have a separate monitor so no, I didn't do anything like that.

As for the debug menu, I can't access it due to terminal completely freezing. Unfortunately when I try to debug using wezterm start --always-new-process, no error is printed, just the spawned term freezes which I can close by CTRL+C on the original term window which was used to spawn it.

Thanks for trying it out.

Unfortunetly this makes it a bit difficult to figure out the main cause of this.

Do you know if it is related to the current GUI window being smaller or larger than the one you are trying to resurrect?

And is this something you have experienced many times? or just with this particular resurrected state?

[Tanish2002]

Here’s a rewritten version of your reply for the GitHub issue:

Hi @MLFlexer,

And is this something you have experienced many times? or just with this particular resurrected state?
This issue occurs consistently for all workspaces, not just for a specific resurrected state.

The windows are the exact same size as the one I am trying to resurrect since I use AwesomeWM it manages them automatically. Also the issue occurs for all saved workspaces..

However, your question about resizing prompted me to experiment, and I discovered that resizing the window actually unfreezes the terminal.

Here’s a video demonstrating the behavior:

wezterm-2025-01-04_02.12.18.mp4

Let me know if there's any additional information or logs I can provide to help troubleshoot this further.

[MLFlexer]

Sorry for the late reply, have been very busy lately...

Thanks for the additional information!

Does it work if you change your config to use relative=false?

Also can you try and make a keybind which changes the window size using set_inner_size and see if there is a particular input it crashes on?
I am afraid this might be a Wezterm problem and not the plugin :/

Try the following keybind:

{
	key = "x",
	mods = "ALT",
	action = wezterm.action_callback(function(window, pane)
		window:set_inner_size(<width>, <height>)
	end),
},

[MLFlexer]

Also, do you have window decorations and padding set? Because, then it might be related to #72 (comment) aswell

[MLFlexer]

#87 adds an option to avoid resizing, that might help initially, but I think it would be beneficial if you could also test the set_inner_size inputs, to see if it is a problem with Wezterm