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works from terminal but not from icon tray in Boxes/Ubuntu24

Open PolyMMA opened this issue 1 month ago • 3 comments

Flameshot Version

flameshot 12.. flameshot/now 13.3.0-1 amd64

Installation Type

Using the ready-made package from Github Releases

Operating System type and version

Ubuntu 24

Description

When I run flameshot in native Ubuntu 24, I can screenshot just fine, initated form the icon tray or the terminal using the flameshot gui command.

However, in the Ubuntu 24 running insided Boxes, I can only screenshot by running the terminal command flameshot gui.

Here comes dbus-monitor dumps of when trying to run it from

  • icon tray which produces "Flameshot Error: Unable to capture screen"
  • terminal, using the flameshot gui

From Icon tray:

$ dbus-monitor --session sender=org.flameshot.Flameshot
signal time=1763890261.267551 sender=org.freedesktop.DBus -> destination=:1.243 serial=2 path=/org/freedesktop/DBus; interface=org.freedesktop.DBus; member=NameAcquired
   string ":1.243"
signal time=1763890261.267589 sender=org.freedesktop.DBus -> destination=:1.243 serial=4 path=/org/freedesktop/DBus; interface=org.freedesktop.DBus; member=NameLost
   string ":1.243"
method call time=1763890273.692832 sender=:1.255 -> destination=org.freedesktop.DBus serial=11 path=/org/freedesktop/DBus; interface=org.freedesktop.DBus; member=AddMatch
   string "type='signal',sender='org.freedesktop.DBus',interface='org.freedesktop.DBus',member='NameOwnerChanged',arg0='org.a11y.Bus',arg1=''"
method call time=1763890273.692865 sender=:1.255 -> destination=org.freedesktop.DBus serial=12 path=/org/freedesktop/DBus; interface=org.freedesktop.DBus; member=NameHasOwner
   string "org.a11y.Bus"
method call time=1763890273.693262 sender=:1.255 -> destination=org.freedesktop.DBus serial=13 path=/org/freedesktop/DBus; interface=org.freedesktop.DBus; member=AddMatch
   string "type='signal',sender='org.freedesktop.DBus',interface='org.freedesktop.DBus',member='NameOwnerChanged',arg0='org.a11y.Bus'"
method call time=1763890273.693295 sender=:1.255 -> destination=org.freedesktop.DBus serial=14 path=/org/freedesktop/DBus; interface=org.freedesktop.DBus; member=GetNameOwner
   string "org.a11y.Bus"
method call time=1763890273.693511 sender=:1.255 -> destination=org.a11y.Bus serial=15 path=/org/a11y/bus; interface=org.freedesktop.DBus.Properties; member=Get
   string "org.a11y.Status"
   string "ScreenReaderEnabled"
method call time=1763890273.694519 sender=:1.255 -> destination=org.a11y.Bus serial=16 path=/org/a11y/bus; interface=org.freedesktop.DBus.Properties; member=Get
   string "org.a11y.Status"
   string "IsEnabled"
method call time=1763890295.807879 sender=:1.255 -> destination=org.freedesktop.portal.Desktop serial=17 path=/org/freedesktop/portal/desktop; interface=org.freedesktop.DBus.Introspectable; member=Introspect
method call time=1763890295.813772 sender=:1.255 -> destination=org.freedesktop.DBus serial=18 path=/org/freedesktop/DBus; interface=org.freedesktop.DBus; member=AddMatch
   string "type='signal',sender='org.freedesktop.DBus',interface='org.freedesktop.DBus',member='NameOwnerChanged',arg0='org.freedesktop.portal.Desktop'"
method call time=1763890295.813799 sender=:1.255 -> destination=org.freedesktop.DBus serial=19 path=/org/freedesktop/DBus; interface=org.freedesktop.DBus; member=GetNameOwner
   string "org.freedesktop.portal.Desktop"
method call time=1763890295.814239 sender=:1.255 -> destination=org.freedesktop.DBus serial=20 path=/org/freedesktop/DBus; interface=org.freedesktop.DBus; member=GetNameOwner
   string "org.freedesktop.portal.Desktop"
method call time=1763890295.814448 sender=:1.255 -> destination=org.freedesktop.DBus serial=21 path=/org/freedesktop/DBus; interface=org.freedesktop.DBus; member=AddMatch
   string "type='signal',sender='org.freedesktop.portal.Desktop',path='/org/freedesktop/portal/desktop/request/1_255/c401c943a636436a9bde27e50510ecb8',interface='org.freedesktop.portal.Request',member='Response'"
method call time=1763890295.814514 sender=:1.255 -> destination=org.freedesktop.DBus serial=22 path=/org/freedesktop/DBus; interface=org.freedesktop.DBus; member=AddMatch
   string "type='signal',sender='org.freedesktop.DBus',interface='org.freedesktop.DBus',member='NameOwnerChanged',arg0='org.freedesktop.portal.Desktop'"
method call time=1763890295.814534 sender=:1.255 -> destination=org.freedesktop.DBus serial=23 path=/org/freedesktop/DBus; interface=org.freedesktop.DBus; member=GetNameOwner
   string "org.freedesktop.portal.Desktop"
method call time=1763890295.815478 sender=:1.255 -> destination=org.freedesktop.portal.Desktop serial=24 path=/org/freedesktop/portal/desktop; interface=org.freedesktop.portal.Screenshot; member=Screenshot
   string ""
   array [
      dict entry(
         string "handle_token"
         variant             string "c401c943a636436a9bde27e50510ecb8"
      )
      dict entry(
         string "interactive"
         variant             boolean false
      )
   ]
method call time=1763890295.832226 sender=:1.255 -> destination=org.freedesktop.portal.Desktop serial=25 path=/org/freedesktop/portal/desktop/request/1_255/c401c943a636436a9bde27e50510ecb8; interface=org.freedesktop.portal.Request; member=Close
method call time=1763890295.834291 sender=:1.255 -> destination=org.freedesktop.Notifications serial=26 path=/org/freedesktop/Notifications; interface=org.freedesktop.DBus.Introspectable; member=Introspect
method call time=1763890295.836020 sender=:1.255 -> destination=org.freedesktop.DBus serial=27 path=/org/freedesktop/DBus; interface=org.freedesktop.DBus; member=AddMatch
   string "type='signal',sender='org.freedesktop.DBus',interface='org.freedesktop.DBus',member='NameOwnerChanged',arg0='org.freedesktop.Notifications'"
method call time=1763890295.836069 sender=:1.255 -> destination=org.freedesktop.DBus serial=28 path=/org/freedesktop/DBus; interface=org.freedesktop.DBus; member=GetNameOwner
   string "org.freedesktop.Notifications"
method call time=1763890295.837141 sender=:1.255 -> destination=org.freedesktop.Notifications serial=29 path=/org/freedesktop/Notifications; interface=org.freedesktop.Notifications; member=Notify
   string "flameshot"
   uint32 0
   string "flameshot"
   string "Flameshot Error"
   string "Unable to capture screen"
   array [
   ]
   array [
   ]
   int32 5000
method call time=1763890295.867499 sender=:1.255 -> destination=org.freedesktop.DBus serial=30 path=/org/freedesktop/DBus; interface=org.freedesktop.DBus; member=RemoveMatch
   string "type='signal',sender='org.freedesktop.DBus',interface='org.freedesktop.DBus',member='NameOwnerChanged',arg0='org.freedesktop.Notifications'"
method call time=1763890295.868071 sender=:1.255 -> destination=org.freedesktop.DBus serial=31 path=/org/freedesktop/DBus; interface=org.freedesktop.DBus; member=RemoveMatch
   string "type='signal',sender='org.freedesktop.portal.Desktop',path='/org/freedesktop/portal/desktop/request/1_255/c401c943a636436a9bde27e50510ecb8',interface='org.freedesktop.portal.Request',member='Response'"
method call time=1763890295.868127 sender=:1.255 -> destination=org.freedesktop.DBus serial=32 path=/org/freedesktop/DBus; interface=org.freedesktop.DBus; member=RemoveMatch
   string "type='signal',sender='org.freedesktop.DBus',interface='org.freedesktop.DBus',member='NameOwnerChanged',arg0='org.freedesktop.portal.Desktop'"
method call time=1763890295.868136 sender=:1.255 -> destination=org.freedesktop.DBus serial=33 path=/org/freedesktop/DBus; interface=org.freedesktop.DBus; member=RemoveMatch
   string "type='signal',sender='org.freedesktop.DBus',interface='org.freedesktop.DBus',member='NameOwnerChanged',arg0='org.freedesktop.portal.Desktop'"
method call time=1763890295.869047 sender=:1.255 -> destination=org.freedesktop.DBus serial=34 path=/org/freedesktop/DBus; interface=org.freedesktop.DBus; member=AddMatch
   string "type='signal',sender='org.freedesktop.DBus',interface='org.freedesktop.DBus',member='NameOwnerChanged',arg0='org.freedesktop.Notifications'"
method call time=1763890295.869095 sender=:1.255 -> destination=org.freedesktop.DBus serial=35 path=/org/freedesktop/DBus; interface=org.freedesktop.DBus; member=GetNameOwner
   string "org.freedesktop.Notifications"
method call time=1763890295.870167 sender=:1.255 -> destination=org.freedesktop.Notifications serial=36 path=/org/freedesktop/Notifications; interface=org.freedesktop.Notifications; member=Notify
   string "flameshot"
   uint32 0
   string "flameshot"
   string "Flameshot Error"
   string "Unable to capture screen"
   array [
   ]
   array [
   ]
   int32 5000
method call time=1763890295.908278 sender=:1.255 -> destination=org.freedesktop.DBus serial=37 path=/org/freedesktop/DBus; interface=org.freedesktop.DBus; member=RemoveMatch
   string "type='signal',sender='org.freedesktop.DBus',interface='org.freedesktop.DBus',member='NameOwnerChanged',arg0='org.freedesktop.Notifications'"

Form the terminal Produced system message "Flameshot Info: Capture saved to clipboard"

$ flameshot gui
QLayout: Attempting to add QLayout "" to SidePanelWidget "", which already has a layout
QPainter::begin: Paint device returned engine == 0, type: 2
QPainter::setRenderHint: Painter must be active to set rendering hints
QPainter::setCompositionMode: Painter not active
QPainter::translate: Painter not active
QPainter::setPen: Painter not active
QPainter::setBrush: Painter not active
QPainter::setBrush: Painter not active

$ dbus-monitor --session sender=org.flameshot.Flameshot
signal time=1763891962.331745 sender=org.freedesktop.DBus -> destination=:1.261 serial=2 path=/org/freedesktop/DBus; interface=org.freedesktop.DBus; member=NameAcquired
   string ":1.261"
signal time=1763891962.331778 sender=org.freedesktop.DBus -> destination=:1.261 serial=4 path=/org/freedesktop/DBus; interface=org.freedesktop.DBus; member=NameLost
   string ":1.261"
method call time=1763891983.644967 sender=:1.255 -> destination=org.freedesktop.DBus serial=38 path=/org/freedesktop/DBus; interface=org.freedesktop.DBus; member=AddMatch
   string "type='signal',sender='org.freedesktop.DBus',interface='org.freedesktop.DBus',member='NameOwnerChanged',arg0='org.freedesktop.Notifications'"
method call time=1763891983.645017 sender=:1.255 -> destination=org.freedesktop.DBus serial=39 path=/org/freedesktop/DBus; interface=org.freedesktop.DBus; member=GetNameOwner
   string "org.freedesktop.Notifications"
method call time=1763891983.645605 sender=:1.255 -> destination=org.freedesktop.Notifications serial=40 path=/org/freedesktop/Notifications; interface=org.freedesktop.Notifications; member=Notify
   string "flameshot"
   uint32 0
   string "flameshot"
   string "Flameshot Info"
   string "Capture saved to clipboard."
   array [
   ]
   array [
   ]
   int32 5000
method call time=1763891983.679191 sender=:1.255 -> destination=org.freedesktop.DBus serial=41 path=/org/freedesktop/DBus; interface=org.freedesktop.DBus; member=RemoveMatch
   string "type='signal',sender='org.freedesktop.DBus',interface='org.freedesktop.DBus',member='NameOwnerChanged',arg0='org.freedesktop.Notifications'"
method return time=1763891983.743581 sender=:1.255 -> destination=:1.266 serial=42 reply_serial=21

Steps to reproduce

  1. start new terminal and run flameshot gui = works fine
  2. leftclick on the icon tray icon of flameshot, "take screenshot" = Flameshot Error: Unable to capture screen

Screenshots or screen recordings

No response

System Information

Ubuntu 24 running inside Boxes, hosted in Ubuntu 24

PolyMMA avatar Nov 23 '25 10:11 PolyMMA

Hello, for my Ubuntu Desktop i've created a solution by creating a shortkey for my PRTSC button running this command:

script --command "QT_QPA_PLATFORM=wayland flameshot gui" /dev/null

This solves my issue in

Distributor ID: Ubuntu Description: Ubuntu 25.10 Release: 25.10 Codename: questing

Thanks.

viaictcom avatar Nov 25 '25 09:11 viaictcom

Same for me, I'm using the AppImage, on Arch under gnome/wayland. Works if launched from terminal (including using the tray icon after that), but if launched from the .dekstop file it does not work, with same error reported here.

mschout avatar Dec 10 '25 14:12 mschout

This is probably a dupe of #3326

mschout avatar Dec 10 '25 14:12 mschout