[Linux] Window softlock on click

[SilverLous]

After the click happens, like changing the tools tab, it freezes completely and never recovers.
OS: Linux
System: PF2E
FLC Version: 7.3.1
No modules loaded.

[S-North]

I get the same on Ubuntu 24.04.3 Gnome. I can log in and the world loads but the moment I click on anything the screen goes grey and stays that way.
OS: Ubuntu 24.04.3 Gnome
FLC Version: 7.5.0
System: PF2E

[S-North]

Tried again today with v7.6.4 on KDE (Wayland) on Arch.
When launching the flatpack from the terminal I get the following errors during the Foundry logon screen

./Downloads/FLC_7.6.4_amd64.AppImage

** (WebKitWebProcess:140364): WARNING **: 16:02:47.568: The GStreamer FDK AAC plugin is missing, AAC playback is unlikely to work.
GStreamer element appsrc not found. Please install it
(WebKitWebProcess:140364): GLib-GObject-CRITICAL **: 16:02:49.654: g_object_set: assertion 'G_IS_OBJECT (object)' failed
(WebKitWebProcess:140364): GStreamer-CRITICAL **: 16:02:49.654: gst_bin_add: assertion 'GST_IS_ELEMENT (element)' failed
(WebKitWebProcess:140364): GStreamer-CRITICAL **: 16:02:49.654: gst_element_get_static_pad: assertion 'GST_IS_ELEMENT (element)' failed
(WebKitWebProcess:140364): GLib-GObject-CRITICAL **: 16:02:49.654: g_object_set: assertion 'G_IS_OBJECT (object)' failed
GStreamer element autoaudiosink not found. Please install it
(WebKitWebProcess:140364): GLib-GObject-WARNING **: 16:02:49.654: invalid (NULL) pointer instance
(WebKitWebProcess:140364): GLib-GObject-CRITICAL **: 16:02:49.654: g_signal_connect_data: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed
(WebKitWebProcess:140364): GLib-GObject-CRITICAL **: 16:02:49.656: g_object_set: assertion 'G_IS_OBJECT (object)' failed
(WebKitWebProcess:140364): GStreamer-CRITICAL **: 16:02:49.656: gst_bin_add: assertion 'GST_IS_ELEMENT (element)' failed
(WebKitWebProcess:140364): GStreamer-CRITICAL **: 16:02:49.656: gst_element_get_static_pad: assertion 'GST_IS_ELEMENT (element)' failed
(WebKitWebProcess:140364): GLib-GObject-CRITICAL **: 16:02:49.656: g_object_set: assertion 'G_IS_OBJECT (object)' failed
(WebKitWebProcess:140364): GLib-GObject-WARNING **: 16:02:49.656: invalid (NULL) pointer instance
(WebKitWebProcess:140364): GLib-GObject-CRITICAL **: 16:02:49.656: g_signal_connect_data: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed
(WebKitWebProcess:140364): GLib-GObject-CRITICAL **: 16:02:49.658: g_object_set: assertion 'G_IS_OBJECT (object)' failed
(WebKitWebProcess:140364): GStreamer-CRITICAL **: 16:02:49.658: gst_bin_add: assertion 'GST_IS_ELEMENT (element)' failed
(WebKitWebProcess:140364): GStreamer-CRITICAL **: 16:02:49.658: gst_element_get_static_pad: assertion 'GST_IS_ELEMENT (element)' failed
(WebKitWebProcess:140364): GLib-GObject-CRITICAL **: 16:02:49.658: g_object_set: assertion 'G_IS_OBJECT (object)' failed
(WebKitWebProcess:140364): GLib-GObject-WARNING **: 16:02:49.658: invalid (NULL) pointer instance
(WebKitWebProcess:140364): GLib-GObject-CRITICAL **: 16:02:49.658: g_signal_connect_data: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed

Gstreamer is installed along with all the plugins.

Then this when loading the world
** (flc:140273): WARNING **: 16:03:09.792: atk-bridge: get_device_events_reply: unknown signature

The world is successfully loaded and no more errors appear in the terminal. But there are odd circular artifacts on the player tokens and the pause banner seems to be moving at 5 fps.

Screencast_20250831_161052.webm

Any attempt to click on an element locks up the app and then afer a short while goes to a grey screen.

[phenomen]

I bundled the latest webkitgtk in 7.8.0 and it seems like Linux performance is better now. I'm not sure if it fixes your specific issues, but it worth a try.

[S-North]

Hi, thanks. I downloaded the 7.8.0 appimage and tried it.
Unfortunately it still has the same issues with performance and the app locking up and going grey screen. here is the console output;

Gtk-Message: 18:11:19.697: Failed to load module "colorreload-gtk-module"
Gtk-Message: 18:11:19.697: Failed to load module "appmenu-gtk-module"

** (WebKitWebProcess:82259): WARNING **: 18:11:31.531: The GStreamer FDK AAC plugin is missing, AAC playback is unlikely to work.
GStreamer element appsrc not found. Please install it
(WebKitWebProcess:82259): GLib-GObject-CRITICAL **: 18:11:39.573: g_object_set: assertion 'G_IS_OBJECT (object)' failed
(WebKitWebProcess:82259): GStreamer-CRITICAL **: 18:11:39.573: gst_bin_add: assertion 'GST_IS_ELEMENT (element)' failed
(WebKitWebProcess:82259): GStreamer-CRITICAL **: 18:11:39.573: gst_element_get_static_pad: assertion 'GST_IS_ELEMENT (element)' failed
(WebKitWebProcess:82259): GLib-GObject-CRITICAL **: 18:11:39.573: g_object_set: assertion 'G_IS_OBJECT (object)' failed
GStreamer element autoaudiosink not found. Please install it
(WebKitWebProcess:82259): GLib-GObject-WARNING **: 18:11:39.573: invalid (NULL) pointer instance
(WebKitWebProcess:82259): GLib-GObject-CRITICAL **: 18:11:39.573: g_signal_connect_data: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed
(WebKitWebProcess:82259): GLib-GObject-CRITICAL **: 18:11:39.575: g_object_set: assertion 'G_IS_OBJECT (object)' failed
(WebKitWebProcess:82259): GStreamer-CRITICAL **: 18:11:39.575: gst_bin_add: assertion 'GST_IS_ELEMENT (element)' failed
(WebKitWebProcess:82259): GStreamer-CRITICAL **: 18:11:39.575: gst_element_get_static_pad: assertion 'GST_IS_ELEMENT (element)' failed
(WebKitWebProcess:82259): GLib-GObject-CRITICAL **: 18:11:39.575: g_object_set: assertion 'G_IS_OBJECT (object)' failed
(WebKitWebProcess:82259): GLib-GObject-WARNING **: 18:11:39.575: invalid (NULL) pointer instance
(WebKitWebProcess:82259): GLib-GObject-CRITICAL **: 18:11:39.575: g_signal_connect_data: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed
(WebKitWebProcess:82259): GLib-GObject-CRITICAL **: 18:11:39.577: g_object_set: assertion 'G_IS_OBJECT (object)' failed
(WebKitWebProcess:82259): GStreamer-CRITICAL **: 18:11:39.577: gst_bin_add: assertion 'GST_IS_ELEMENT (element)' failed
(WebKitWebProcess:82259): GStreamer-CRITICAL **: 18:11:39.577: gst_element_get_static_pad: assertion 'GST_IS_ELEMENT (element)' failed
(WebKitWebProcess:82259): GLib-GObject-CRITICAL **: 18:11:39.577: g_object_set: assertion 'G_IS_OBJECT (object)' failed
(WebKitWebProcess:82259): GLib-GObject-WARNING **: 18:11:39.577: invalid (NULL) pointer instance
(WebKitWebProcess:82259): GLib-GObject-CRITICAL **: 18:11:39.577: g_signal_connect_data: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed
** (flc:82174): WARNING **: 18:11:44.988: atk-bridge: get_device_events_reply: unknown signature
(WebKitWebProcess:82259): GLib-GObject-CRITICAL **: 18:12:28.118: g_object_set: assertion 'G_IS_OBJECT (object)' failed
(WebKitWebProcess:82259): GStreamer-CRITICAL **: 18:12:28.118: gst_bin_add: assertion 'GST_IS_ELEMENT (element)' failed
(WebKitWebProcess:82259): GStreamer-CRITICAL **: 18:12:28.118: gst_element_get_static_pad: assertion 'GST_IS_ELEMENT (element)' failed
(WebKitWebProcess:82259): GLib-GObject-CRITICAL **: 18:12:28.118: g_object_set: assertion 'G_IS_OBJECT (object)' failed
(WebKitWebProcess:82259): GLib-GObject-WARNING **: 18:12:28.118: invalid (NULL) pointer instance
(WebKitWebProcess:82259): GLib-GObject-CRITICAL **: 18:12:28.118: g_signal_connect_data: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed
(WebKitWebProcess:82259): GLib-GObject-CRITICAL **: 18:12:28.120: g_object_set: assertion 'G_IS_OBJECT (object)' failed
(WebKitWebProcess:82259): GStreamer-CRITICAL **: 18:12:28.120: gst_bin_add: assertion 'GST_IS_ELEMENT (element)' failed
(WebKitWebProcess:82259): GStreamer-CRITICAL **: 18:12:28.120: gst_element_get_static_pad: assertion 'GST_IS_ELEMENT (element)' failed
(WebKitWebProcess:82259): GLib-GObject-CRITICAL **: 18:12:28.120: g_object_set: assertion 'G_IS_OBJECT (object)' failed
(WebKitWebProcess:82259): GLib-GObject-WARNING **: 18:12:28.120: invalid (NULL) pointer instance
(WebKitWebProcess:82259): GLib-GObject-CRITICAL **: 18:12:28.120: g_signal_connect_data: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed
(WebKitWebProcess:82259): GLib-GObject-CRITICAL **: 18:12:28.122: g_object_set: assertion 'G_IS_OBJECT (object)' failed
(WebKitWebProcess:82259): GStreamer-CRITICAL **: 18:12:28.122: gst_bin_add: assertion 'GST_IS_ELEMENT (element)' failed
(WebKitWebProcess:82259): GStreamer-CRITICAL **: 18:12:28.122: gst_element_get_static_pad: assertion 'GST_IS_ELEMENT (element)' failed
(WebKitWebProcess:82259): GLib-GObject-CRITICAL **: 18:12:28.122: g_object_set: assertion 'G_IS_OBJECT (object)' failed
(WebKitWebProcess:82259): GLib-GObject-WARNING **: 18:12:28.122: invalid (NULL) pointer instance
(WebKitWebProcess:82259): GLib-GObject-CRITICAL **: 18:12:28.122: g_signal_connect_data: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed
(WebKitWebProcess:82259): GLib-GObject-WARNING **: 18:12:28.779: invalid (NULL) pointer instance
(WebKitWebProcess:82259): GLib-GObject-CRITICAL **: 18:12:28.779: g_signal_connect_data: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed

Here's what it looks like now after its frozen up on my arch/wayland system. I'll also test it again on my Ubuntu/Gnome system in a bit.

[S-North]

Just checked and I get the exact same on my other PC running Ubuntu 24.04 Gnome.

[Hufschmidt]

Similar issue on Arch-Linux. I can open the app, connect to a server, login-in, but afterwards nothing happens and I only have increased CPU load.

FLC: Version 7.8.4
OS: Manjaro (Arch Linux based)
Window-Manager: KDE Plasma 6 (Using Wayland Backend)
Kernel: 6.16.8
GPU: AMD Radeon RX 6700 XT
WebGL2 is available
High-Performance GPU is available
FoundryVTT: v12 and v13 have similar issue