Flatseal will not open on my chromebook

[Rand0mUserThatExists]

For some reason, once I installed Flatseal and tried to run it in the Linux terminal, it would not open. Is there a way to fix this?

[rusty-snake]

Try to start it from a terminal (flatpak run com.github.tchx84.Flatseal) to see error messages.

[Drakon1505]

flatpak run com.github.tchx84.Flatseal

(com.github.tchx84.Flatseal:2): Gtk-WARNING **: 04:31:53.832: Theme parser error: gtk.css:3783:126-133: Expected a number

(com.github.tchx84.Flatseal:2): Gdk-WARNING **: 04:31:54.324: vkGetPhysicalDeviceSurfaceFormatsKHR(): A surface is no longer available. (VK_ERROR_SURFACE_LOST_KHR) (-1000000000)

(com.github.tchx84.Flatseal:2): Gdk-WARNING **: 04:31:54.325: vkGetPhysicalDeviceSurfaceFormatsKHR(): A surface is no longer available. (VK_ERROR_SURFACE_LOST_KHR) (-1000000000)

(com.github.tchx84.Flatseal:2): Gdk-WARNING **: 04:31:54.344: vkGetPhysicalDeviceSurfaceCapabilitiesKHR(): A surface is no longer available. (VK_ERROR_SURFACE_LOST_KHR) (-1000000000)

(com.github.tchx84.Flatseal:2): Gtk-WARNING **: 04:31:54.439: No IM module matching GTK_IM_MODULE=cros found

[tchx84]

hmm, looks like something in GTK (not Flatseal specific)... Some of those warnings are vulkan-related, try running the app with GSK_RENDERER=gl flatpak run com.github.tchx84.Flatseal to force the old renderer?