Guake
Window blurry under Wayland and with fractional scaling
Describe the bug
The guake window is blurry on a hiDPI Display with fractional scaling under Gnome/Wayland, scaled to 150%.
When starting guake in wayland mode - wanted to test whether it behaves better - it won't start and errors with:
Guake not running, starting it
Loading Gnome schema from: /home/.../.local/lib/python3.12/site-packages/guake/data
Language previously loaded from: /home/.../.local/lib/python3.12/site-packages/guake/po
Guake Terminal 3.10
VTE 0.74.2
Gtk 3.24.39
(guake:236630): Gtk-CRITICAL **: 11:17:19.627: gtk_widget_get_scale_factor: assertion 'GTK_IS_WIDGET (widget)' failed
created fresh notebook for workspace 0
Spawning new terminal at /home/...
current workspace is 0
can't bind show-focus key
Traceback (most recent call last):
File "/usr/lib64/python3.12/site-packages/dbus/bus.py", line 173, in activate_name_owner
return self.get_name_owner(bus_name)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib64/python3.12/site-packages/dbus/bus.py", line 348, in get_name_owner
return self.call_blocking(BUS_DAEMON_NAME, BUS_DAEMON_PATH,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib64/python3.12/site-packages/dbus/connection.py", line 634, in call_blocking
reply_message = self.send_message_with_reply_and_block(
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
dbus.exceptions.DBusException: org.freedesktop.DBus.Error.NameHasNoOwner: The name does not have an owner
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/home/.../.local/lib/python3.12/site-packages/guake/main.py", line 479, in main
remote_object = bus.get_object(DBUS_NAME, DBUS_PATH)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib64/python3.12/site-packages/dbus/bus.py", line 237, in get_object
return self.ProxyObjectClass(self, bus_name, object_path,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib64/python3.12/site-packages/dbus/proxies.py", line 250, in __init__
self._named_service = conn.activate_name_owner(bus_name)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib64/python3.12/site-packages/dbus/bus.py", line 178, in activate_name_owner
self.start_service_by_name(bus_name)
File "/usr/lib64/python3.12/site-packages/dbus/bus.py", line 273, in start_service_by_name
return (True, self.call_blocking(BUS_DAEMON_NAME, BUS_DAEMON_PATH,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib64/python3.12/site-packages/dbus/connection.py", line 634, in call_blocking
reply_message = self.send_message_with_reply_and_block(
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
dbus.exceptions.DBusException: org.freedesktop.DBus.Error.ServiceUnknown: The name is not activatable
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/home/.../.local/bin/guake", line 8, in <module>
sys.exit(exec_main())
^^^^^^^^^^^
File "/home/.../.local/lib/python3.12/site-packages/guake/main.py", line 664, in exec_main
if not main():
^^^^^^
File "/home/.../.local/lib/python3.12/site-packages/guake/main.py", line 495, in main
instance = Guake()
^^^^^^^
File "/home/.../.local/lib/python3.12/site-packages/guake/guake_app.py", line 262, in __init__
self.load_config()
File "/home/.../.local/lib/python3.12/site-packages/guake/guake_app.py", line 817, in load_config
self.settings.general.triggerOnChangedValue(
File "/home/.../.local/lib/python3.12/site-packages/guake/settings.py", line 119, in triggerOnChangedValue
func(settings, key, user_data)
File "/home/.../.local/lib/python3.12/site-packages/guake/gsettings.py", line 157, in size_changed
RectCalculator.set_final_window_rect(self.settings, self.guake.window)
File "/home/.../.local/lib/python3.12/site-packages/guake/utils.py", line 275, in set_final_window_rect
window_rect = monitor.get_workarea()
^^^^^^^^^^^^^^^^^^^^
AttributeError: 'NoneType' object has no attribute 'get_workarea'
Expected behavior
The guake windows is crisp and sharp, just like most other applications on a hiDPI Display with fractional scaling under Gnome/Wayland, scaled to 150%.
To Reproduce
- start gnome/wayland
- enable fractional scaling and scale to 150%
- install latest guake from pypi
- open guake and print some directories (to have some text visible)
X11:
$ guake --support
Guake Version: 3.10
Vte Version: 0.74.2
Vte Runtime Version: 0.74.2
GTK+ Version: 3.24.39
GDK Backend: <GdkX11.X11Display
Desktop Session: gnome
Display: :0
RGBA visual: True
Composited: True
- Monitor: 0 - eDP-1
- Geometry: 1503 x 1002 at 0, 0
- Size: 280 x 190 mm²
- Primary: True
- Refresh rate: 59.854 Hz
- Subpixel layout: unknown
Wayland:
$ guake --support
Guake Version: 3.10
Vte Version: 0.74.2
Vte Runtime Version: 0.74.2
GTK+ Version: 3.24.39
GDK Backend: <gi.GdkWaylandDisplay
Desktop Session: gnome
Display: wayland-0
RGBA visual: True
Composited: True
- Monitor: 0 - BOE 0x095f
- Geometry: 1503 x 1002 % 2 at 0, 0
- Size: 280 x 190 mm²
- Primary: False
- Refresh rate: 59.998000000000005 Hz
- Subpixel layout: unknown
The core problem, here, is that the codepath to detect the primary monitor is broken under Wayland, and under XWayland you don't get fractional scaling.
As a workaround, if you open guake under Xwayland (i.e. GUAKE_ENABLE_WAYLAND unset or set to 0), then in the Main Window settings set it to open on a specific monitor (i.e. not the primary), then terminate guake and restart with GUAKE_ENABLE_WAYLAND set, then it should work.
