Flameshot: KDE freezes when copying to clipboard
Hi!
First of all, great tool, enjoying using it. I have, however, noticed that KDE freezes for roughly 10-15 seconds after I copy to clipboard (that is: flameshot -c or flameshot gui (and then copy to clipboard option)). It does, however, NOT freeze when I upload to imgur, wait for the 'finished UI', and then select 'copy to clipboard'. I haven't looked into the code at all, but perhaps there's something different going on there?
It's worth mentioning that it's not the entire desktop environment (e.g. I can still browse pages in chrome, chat in Discord, etc.) It's just the system UI (e.g. I can't open settings, open application launchers, switch applications, etc.).
I'd be more than happy to provide more information as needed!
System
Flameshot version
Flameshot v0.5.1-15-g0e81c6b
Compiled with QT 5.10.1
KDE
plasmashell 5.12.3
Qt: 5.10.1
KDE Frameworks: 5.44.0
kf5-config: 1.0
OS + Kernel
```
4.14.27-1-MANJARO
LSB Version: n/a
Distributor ID: ManjaroLinux
Description: Manjaro Linux
Release: 17.1.6
Codename: Hakoila
```
BeeHiveJava
All 32 comments
I added a fix related to clipboard some weeks ago, it's weird it still happens in the most recent commit. I suppose I'll need to test it in a VM of your system. I use Fedora KDE and I don't experience any problems with the copy to clipboard.
lupoDharkael
on 18 Mar 2018
Happens the same to me. Worked fine up until a week ago when I updated it.
Bocchio
on 8 Apr 2018
I've been testing the commit and it freezes. I managed to solve this saving the file before it was copied to the clipboard: https://github.com/lupoDharkael/flameshot/commit/fff5888152f1e7126b7bdfd7bc9124f544ff5816
but now it freezes anyway.
It looks like a bug somewhere in Plasma, I'll report it.
lupoDharkael
on 8 Apr 2018
Here is the bug report: https://bugs.kde.org/show_bug.cgi?id=392897
lupoDharkael
on 9 Apr 2018
The bug seems to be in QT itself, I've tried to mitigate it in Flameshot and now I don't experience any freezes. Please, test the master branch and confirm.
lupoDharkael
on 10 Apr 2018
It works fine now! :smile:
Bocchio
on 11 Apr 2018
Great! thanks for the report!
lupoDharkael
on 11 Apr 2018
Kudos to you for this program, keep up the good work!
Bocchio
on 11 Apr 2018
Also confirmed for me, thanks for the effort. I dropped you some money in your PayPal, enjoy a beer on us!
BeeHiveJava
on 12 Apr 2018
Still happening to me, Flameshot v0.6.0 with Qt 5.11.1. Running on Manjaro OS with KDE
dginovker
on 21 Dec 2018
Just wanted to say I'm encountering this issue as well.
$ flameshot -v
Flameshot v0.6.0
Compiled with Qt 5.12.0
$ plasmashell --version
plasmashell 5.14.5
$ uname -a
Linux larch 4.20.6-arch1-1-ARCH #1 SMP PREEMPT Thu Jan 31 08:22:01 UTC 2019 x86_64 GNU/Linux
landaire
on 8 Feb 2019
Same issue, both on plasma and bspwm, could it be SDDM related?
ShayBox
on 15 Feb 2019
Same on bspwm (but not on Plasma)
morpheusthewhite
on 20 Nov 2019
Start dbus
On Wed, Nov 20, 2019, 5:57 AM morpheusthewhite notifications@github.com
wrote:
Same on bspwm (but not on Plasma)
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ShayBox
on 20 Nov 2019
It is already running
morpheusthewhite
on 20 Nov 2019
Maybe you don't have a notification daemon running then, both of those
cause that
On Wed, Nov 20, 2019, 8:09 AM morpheusthewhite notifications@github.com
wrote:
It is already running
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ShayBox
on 20 Nov 2019
Yes, I was missing a notification daemon.
Thank you so much
morpheusthewhite
on 20 Nov 2019
Same problem. Please reopen.
ripefig
on 14 Jan 2020
Same problem. please reopen.
y0sh1DE
on 22 Jan 2020
problem disappeared after logging out.
ripefig
on 22 Jan 2020
This bug resurfaced for me today
slondr
on 6 Jul 2020
I had the bug too, I use bspwm
Flameshot v0.8.5
Compiled with Qt 5.15.1
westofer
on 16 Nov 2020
I found the cause of the issue (at least for me) - when no notification popup is installed, your DE freezes. I noticed Discord messages were freezing me too back when I had this issue.
dginovker
on 16 Nov 2020
@dginovker you are a legend! thanks.
in arch linux I installed notification-daemon. then
mkdir $XDG_DATA_HOME/dbus-1/services/
echo '
[D-BUS Service]
Name=org.freedesktop.Notifications
Exec=/usr/lib/notification-daemon-1.0/notification-daemon
' | tee $XDG_DATA_HOME/dbus-1/services/org.freedesktop.Notifications.service
it works now
westofer
on 16 Nov 2020
@lupoDharkael not sure if you want to reopen with this newfound info ^
dginovker
on 16 Nov 2020
I don't think this needs reopened as I do not want to maintain a "notification" build and a "non notification" build. However, I would happily merge a documentation update that helps others realized that a notification service (like dunst) is required.
borgmanJeremy
on 17 Nov 2020
Would it be possible instead to check if a notification service exists, and if not, no notification is displayed?
dginovker
on 17 Nov 2020
Im not sure there is a standard way to check for all the different notification managers.
borgmanJeremy
on 18 Nov 2020
Im not sure there is a standard way to check for all the different notification managers.
Even if there was, I feel as though this issue should be handled within d-bus, not in client software — I know of a handful of programs now which experience the same crash for the same reason, and I think d-bus is ultimately to blame here
slondr
on 18 Nov 2020
Also every distro that is not DIY bundles a notification manager. I only experienced this issue as an arch user.
borgmanJeremy
on 18 Nov 2020
not a c dev but could it be async?
if the notification was something like notify-send "copied to clipboard " & it wont block and freeze.
westofer
on 18 Nov 2020
What do the properties of the m_interface look like here when constructed?: https://github.com/flameshot-org/flameshot/blob/dfcc9cb96bf23b108b47f3c54f92b7a266603c5e/src/utils/systemnotification.cpp#L18-L23
Should m_interface->isValid() be checked? To @westofer's point, asyncCallWithArgumentList could also be used here instead which may at least hide the issue: https://github.com/flameshot-org/flameshot/blob/dfcc9cb96bf23b108b47f3c54f92b7a266603c5e/src/utils/systemnotification.cpp#L65
landaire
on 18 Nov 2020
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Most helpful comment
I found the cause of the issue (at least for me) - when no notification popup is installed, your DE freezes. I noticed Discord messages were freezing me too back when I had this issue.