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failure when running as Gnome keyboard shortcut #687

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failure when running as Gnome keyboard shortcut#687
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@dgoffredo

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@dgoffredo
dgoffredo
opened on Feb 19, 2025

What happened?

I'm using NormCap-0.5.9-x86_64.AppImage on the following Ubuntu:

david@dell:~$ cat /etc/os-release
PRETTY_NAME="Ubuntu 24.04.2 LTS"
NAME="Ubuntu"
VERSION_ID="24.04"
VERSION="24.04.2 LTS (Noble Numbat)"
VERSION_CODENAME=noble
ID=ubuntu
ID_LIKE=debian
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
UBUNTU_CODENAME=noble
LOGO=ubuntu-logo
david@dell:~$ uname -a
Linux dell 6.11.0-17-generic #17~24.04.2-Ubuntu SMP PREEMPT_DYNAMIC Mon Jan 20 22:48:29 UTC 2 x86_64 x86_64 x86_64 GNU/Linux
david@dell:~$ env | grep -i XDG
XDG_CONFIG_DIRS=/etc/xdg/xdg-ubuntu:/etc/xdg
XDG_MENU_PREFIX=gnome-
XDG_SESSION_DESKTOP=ubuntu
XDG_SESSION_TYPE=wayland
XDG_CURRENT_DESKTOP=ubuntu:GNOME
XDG_SESSION_CLASS=user
XDG_RUNTIME_DIR=/run/user/1000
XDG_DATA_DIRS=/usr/share/ubuntu:/usr/share/gnome:/usr/local/share/:/usr/share/:/home/david/.nix-profile/share:/nix/var/nix/profiles/default/share:/home/david/.nix-profile/share:/nix/var/nix/profiles/default/share
david@dell:~$

It always works if I run it from the command line, but not always if it's run as a keyboard shortcut.

I set up NormCap-0.5.9-x86_64.AppImage to run as a keyboard shortcut (ctrl+alt+s) using Gnome's custom keyboard shortcuts tool.

It worked a couple of times, but I haven't been able to get it to work for the last few minutes. I think that it fails most of the time when run as a keyboard shortcut.

Here's an excerpt from the logs (in chronological order):

11:41:53 systemd: Started app-gnome-NormCap\x2d0.5.9\x2dx86_64.AppImage-1658412.scope - Application launched by gsd-media-keys.
11:41:55 xdg-desktop-por: Failed to show access dialog: GDBus.Error:org.freedesktop.DBus.Error.AccessDenied: GDBus.Error:org.freedesktop.DBus.Error.AccessDenied: Only the focused app is allowed to show a system access dialog
11:41:55 systemd: Started app-gnome-NormCap\x2d0.5.9\x2dx86_64.AppImage-1658432.scope - Application launched by gsd-media-keys.
11:41:55 python3: 11:41:55 - ERROR   - normcap.screengrab.handlers.dbus_portal:127 - Permission denied for Screenshot via xdg-portal! Message: <PySide6.QtDBus.QDBusMessage(type=Signal, service=":1.86", path="/org/freedesktop/portal/desktop/request/1_402/normcap_iagafbec", interface="org.freedesktop.portal.Request", member="Response", signature="ua{sv}", contents=(2, [Argument: a{sv} {}]) ) at 0x72e5dfd87000>
11:41:55 python3: 11:41:55 - ERROR   - normcap.screengrab.main:64 - DBUS_PORTAL's capture() failed!
11:41:55 python3: Traceback (most recent call last):
11:41:55 python3:   File "/tmp/.mount_NormCaYVXNWH/usr/app/normcap/screengrab/main.py", line 62, in _capture
11:41:55 python3:     images = capture_handler.capture()
11:41:55 python3:   File "/tmp/.mount_NormCaYVXNWH/usr/app/normcap/screengrab/handlers/dbus_portal.py", line 242, in capture
11:41:55 python3:     image = _synchronized_capture(interactive=False)
11:41:55 python3:   File "/tmp/.mount_NormCaYVXNWH/usr/app/normcap/screengrab/handlers/dbus_portal.py", line 198, in _synchronized_capture
11:41:55 python3:     raise error
11:41:55 python3: PermissionError: Permission denied for Screenshot via xdg-portal! Message: <PySide6.QtDBus.QDBusMessage(type=Signal, service=":1.86", path="/org/freedesktop/portal/desktop/request/1_402/normcap_iagafbec", interface="org.freedesktop.portal.Request", member="Response", signature="ua{sv}", contents=(2, [Argument: a{sv} {}]) ) at 0x72e5dfd87000>
11:41:55 python3: 11:41:55 - ERROR   - normcap.screengrab.handlers.dbus_shell:48 - Failed move Window!
11:41:55 python3: 11:41:55 - ERROR   - normcap.screengrab.handlers.dbus_shell:49 - Screenshot is not allowed
11:41:55 python3: 11:41:55 - CRITICAL - normcap:148 - Uncaught exception!
11:41:55 python3: Traceback (most recent call last):
11:41:55 python3:   File "<string>", line 1, in <module>
11:41:55 python3:   File "/tmp/.mount_NormCaYVXNWH/usr/python/lib/python3.10/runpy.py", line 224, in run_module
11:41:55 python3:     return _run_module_code(code, init_globals, run_name, mod_spec)
11:41:55 python3:   File "/tmp/.mount_NormCaYVXNWH/usr/python/lib/python3.10/runpy.py", line 96, in _run_module_code
11:41:55 python3:     _run_code(code, mod_globals, init_globals,
11:41:55 python3:   File "/tmp/.mount_NormCaYVXNWH/usr/python/lib/python3.10/runpy.py", line 86, in _run_code
11:41:55 python3:     exec(code, run_globals)
11:41:55 python3:   File "/tmp/.mount_NormCaYVXNWH/usr/app/normcap/__main__.py", line 6, in <module>
11:41:55 python3:     run()
11:41:55 python3:   File "/tmp/.mount_NormCaYVXNWH/usr/app/normcap/app.py", line 102, in run
11:41:55 python3:     app, tray = _prepare()
11:41:55 python3:   File "/tmp/.mount_NormCaYVXNWH/usr/app/normcap/app.py", line 95, in _prepare
11:41:55 python3:     tray = SystemTray(app, vars(args))
11:41:55 python3:   File "/tmp/.mount_NormCaYVXNWH/usr/app/normcap/gui/tray.py", line 139, in __init__
11:41:55 python3:     self._show_windows(delay_screenshot=delay_screenshot)
11:41:55 python3:   File "/tmp/.mount_NormCaYVXNWH/usr/app/normcap/gui/tray.py", line 204, in _show_windows
11:41:55 python3:     self._create_window(index)
11:41:55 python3:   File "/tmp/.mount_NormCaYVXNWH/usr/app/normcap/gui/tray.py", line 543, in _create_window
11:41:55 python3:     new_window.set_fullscreen()
11:41:55 python3:   File "/tmp/.mount_NormCaYVXNWH/usr/app/normcap/gui/window.py", line 144, in set_fullscreen
11:41:55 python3:     raise ValueError("Screenshot is missing on screen %s", self.screen_)
11:41:55 python3: ValueError: ('Screenshot is missing on screen %s', Screen(left=0, top=0, right=1919, bottom=1079, device_pixel_ratio=1.0, index=0, screenshot=<PySide6.QtGui.QImage(null) at 0x72e5dfda0cc0>))
11:41:55 python3: 11:41:55 - CRITICAL - normcap:151 - System info: {'normcap_version': '0.5.9', 'python_version': '3.10.13', 'cli_args': '-c', 'is_briefcase_package': True, 'is_flatpak_package': False, 'is_appimage_package': True, 'platform': 'linux', 'desktop_environment': <DesktopEnvironment.GNOME: 2>, 'display_manager_is_wayland': True, 'pyside6_version': '6.7.1', 'qt_version': '6.7.1', 'qt_library_path': '/tmp/.mount_NormCaYVXNWH/usr/app_packages/PySide6/Qt/plugins, /tmp/.mount_NormCaYVXNWH/usr/python/bin', 'locale': 'DEFAULT', 'config_directory': PosixPath('/home/david/.config/normcap'), 'resources_path': PosixPath('/tmp/.mount_NormCaYVXNWH/usr/app/normcap/resources'), 'tesseract_path': PosixPath('/tmp/.mount_NormCaYVXNWH/usr/bin/tesseract'), 'tessdata_path': PosixPath('/home/david/.config/normcap/tessdata'), 'envs': {'TESSDATA_PREFIX': None, 'LD_LIBRARY_PATH': None}, 'screens': [Screen(left=0, top=0, right=1919, bottom=1079, device_pixel_ratio=1.0, index=0, screenshot=None)]}
11:41:55 python3: 11:41:55 - CRITICAL - normcap:152 - Unfortunately, NormCap has to be terminated due to an unknown problem.
11:41:55 python3: Please help improve NormCap by reporting this error, including the output above, on
11:41:55 python3: https://github.com/dynobo/normcap/issues/new
11:41:55 python3: Thanks!
11:41:55 python3: Thanks!
11:41:55 systemd: app-gnome-NormCap\x2d0.5.9\x2dx86_64.AppImage-1658412.scope: Consumed 1.008s CPU time.
11:41:55 systemd: tmp-.mount_NormCaYVXNWH.mount: Deactivated successfully.
11:41:55 systemd: tmp-.mount_NormCaYVXNWH.mount: Deactivated successfully.

How did you install NormCap?

AppImage (Linux)

Operating System + Version?

Ubuntu 24.04

[Linux only] Display Server (DS) + Desktop environment (DE)?

Wayland Gnome

Debug log output?*

11:41:53 systemd: Started app-gnome-NormCap\x2d0.5.9\x2dx86_64.AppImage-1658412.scope - Application launched by gsd-media-keys.
11:41:55 xdg-desktop-por: Failed to show access dialog: GDBus.Error:org.freedesktop.DBus.Error.AccessDenied: GDBus.Error:org.freedesktop.DBus.Error.AccessDenied: Only the focused app is allowed to show a system access dialog
11:41:55 systemd: Started app-gnome-NormCap\x2d0.5.9\x2dx86_64.AppImage-1658432.scope - Application launched by gsd-media-keys.
11:41:55 python3: 11:41:55 - ERROR   - normcap.screengrab.handlers.dbus_portal:127 - Permission denied for Screenshot via xdg-portal! Message: <PySide6.QtDBus.QDBusMessage(type=Signal, service=":1.86", path="/org/freedesktop/portal/desktop/request/1_402/normcap_iagafbec", interface="org.freedesktop.portal.Request", member="Response", signature="ua{sv}", contents=(2, [Argument: a{sv} {}]) ) at 0x72e5dfd87000>
11:41:55 python3: 11:41:55 - ERROR   - normcap.screengrab.main:64 - DBUS_PORTAL's capture() failed!
11:41:55 python3: Traceback (most recent call last):
11:41:55 python3:   File "/tmp/.mount_NormCaYVXNWH/usr/app/normcap/screengrab/main.py", line 62, in _capture
11:41:55 python3:     images = capture_handler.capture()
11:41:55 python3:   File "/tmp/.mount_NormCaYVXNWH/usr/app/normcap/screengrab/handlers/dbus_portal.py", line 242, in capture
11:41:55 python3:     image = _synchronized_capture(interactive=False)
11:41:55 python3:   File "/tmp/.mount_NormCaYVXNWH/usr/app/normcap/screengrab/handlers/dbus_portal.py", line 198, in _synchronized_capture
11:41:55 python3:     raise error
11:41:55 python3: PermissionError: Permission denied for Screenshot via xdg-portal! Message: <PySide6.QtDBus.QDBusMessage(type=Signal, service=":1.86", path="/org/freedesktop/portal/desktop/request/1_402/normcap_iagafbec", interface="org.freedesktop.portal.Request", member="Response", signature="ua{sv}", contents=(2, [Argument: a{sv} {}]) ) at 0x72e5dfd87000>
11:41:55 python3: 11:41:55 - ERROR   - normcap.screengrab.handlers.dbus_shell:48 - Failed move Window!
11:41:55 python3: 11:41:55 - ERROR   - normcap.screengrab.handlers.dbus_shell:49 - Screenshot is not allowed
11:41:55 python3: 11:41:55 - CRITICAL - normcap:148 - Uncaught exception!
11:41:55 python3: Traceback (most recent call last):
11:41:55 python3:   File "<string>", line 1, in <module>
11:41:55 python3:   File "/tmp/.mount_NormCaYVXNWH/usr/python/lib/python3.10/runpy.py", line 224, in run_module
11:41:55 python3:     return _run_module_code(code, init_globals, run_name, mod_spec)
11:41:55 python3:   File "/tmp/.mount_NormCaYVXNWH/usr/python/lib/python3.10/runpy.py", line 96, in _run_module_code
11:41:55 python3:     _run_code(code, mod_globals, init_globals,
11:41:55 python3:   File "/tmp/.mount_NormCaYVXNWH/usr/python/lib/python3.10/runpy.py", line 86, in _run_code
11:41:55 python3:     exec(code, run_globals)
11:41:55 python3:   File "/tmp/.mount_NormCaYVXNWH/usr/app/normcap/__main__.py", line 6, in <module>
11:41:55 python3:     run()
11:41:55 python3:   File "/tmp/.mount_NormCaYVXNWH/usr/app/normcap/app.py", line 102, in run
11:41:55 python3:     app, tray = _prepare()
11:41:55 python3:   File "/tmp/.mount_NormCaYVXNWH/usr/app/normcap/app.py", line 95, in _prepare
11:41:55 python3:     tray = SystemTray(app, vars(args))
11:41:55 python3:   File "/tmp/.mount_NormCaYVXNWH/usr/app/normcap/gui/tray.py", line 139, in __init__
11:41:55 python3:     self._show_windows(delay_screenshot=delay_screenshot)
11:41:55 python3:   File "/tmp/.mount_NormCaYVXNWH/usr/app/normcap/gui/tray.py", line 204, in _show_windows
11:41:55 python3:     self._create_window(index)
11:41:55 python3:   File "/tmp/.mount_NormCaYVXNWH/usr/app/normcap/gui/tray.py", line 543, in _create_window
11:41:55 python3:     new_window.set_fullscreen()
11:41:55 python3:   File "/tmp/.mount_NormCaYVXNWH/usr/app/normcap/gui/window.py", line 144, in set_fullscreen
11:41:55 python3:     raise ValueError("Screenshot is missing on screen %s", self.screen_)
11:41:55 python3: ValueError: ('Screenshot is missing on screen %s', Screen(left=0, top=0, right=1919, bottom=1079, device_pixel_ratio=1.0, index=0, screenshot=<PySide6.QtGui.QImage(null) at 0x72e5dfda0cc0>))
11:41:55 python3: 11:41:55 - CRITICAL - normcap:151 - System info: {'normcap_version': '0.5.9', 'python_version': '3.10.13', 'cli_args': '-c', 'is_briefcase_package': True, 'is_flatpak_package': False, 'is_appimage_package': True, 'platform': 'linux', 'desktop_environment': <DesktopEnvironment.GNOME: 2>, 'display_manager_is_wayland': True, 'pyside6_version': '6.7.1', 'qt_version': '6.7.1', 'qt_library_path': '/tmp/.mount_NormCaYVXNWH/usr/app_packages/PySide6/Qt/plugins, /tmp/.mount_NormCaYVXNWH/usr/python/bin', 'locale': 'DEFAULT', 'config_directory': PosixPath('/home/david/.config/normcap'), 'resources_path': PosixPath('/tmp/.mount_NormCaYVXNWH/usr/app/normcap/resources'), 'tesseract_path': PosixPath('/tmp/.mount_NormCaYVXNWH/usr/bin/tesseract'), 'tessdata_path': PosixPath('/home/david/.config/normcap/tessdata'), 'envs': {'TESSDATA_PREFIX': None, 'LD_LIBRARY_PATH': None}, 'screens': [Screen(left=0, top=0, right=1919, bottom=1079, device_pixel_ratio=1.0, index=0, screenshot=None)]}
11:41:55 python3: 11:41:55 - CRITICAL - normcap:152 - Unfortunately, NormCap has to be terminated due to an unknown problem.
11:41:55 python3: Please help improve NormCap by reporting this error, including the output above, on
11:41:55 python3: https://github.com/dynobo/normcap/issues/new
11:41:55 python3: Thanks!
11:41:55 python3: Thanks!
11:41:55 systemd: app-gnome-NormCap\x2d0.5.9\x2dx86_64.AppImage-1658412.scope: Consumed 1.008s CPU time.
11:41:55 systemd: tmp-.mount_NormCaYVXNWH.mount: Deactivated successfully.
11:41:55 systemd: tmp-.mount_NormCaYVXNWH.mount: Deactivated successfully.

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