[kwin] [Bug 366081] kwin's windows stay translucent after moving, become invisible

[Michael Butash via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=366081

--- Comment #13 from Michael Butash  ---
Side note too, Martin's example to reproduce does not work for me, not after a
fresh reboot last night and minimal activity until today.  I switch a lot of
windows back and forth, even between desktops, and doing so does not
immediately manifest itself after reboots.  It's only after some time (~1-2
days) that this starts occurring normally, and sometimes moving just on the
same screen triggers it.

I just had Okular get peculiar, where I'd minimize and leave an impression of
the translucent window stuck in the compositing I couldn't remove, where
un-minimizing it, behaved perfectly normal until minimizing again, resulting in
"ghost". 

Such as:
1. Open url to download PDF, default to Okular reader.
2. Navigate document paging through.
3. Minimize document, leaves resulting translucent ghost image on screen,
cannot remove/manipulate.
4. Un-Minimize Okular, window reappears in focus, can move window normally.
5. Leave Okular on desktop, work with other applications, come back to read pdf
10 minutes later on screen, minimize works normally again.

More odd "coming and going" of these issues with compositing and general
destabilization over time.

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[kwin] [Bug 366081] kwin's windows stay translucent after moving, become invisible

[Michael Butash via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=366081

--- Comment #12 from Michael Butash  ---
Not sure how related, but I had a weird echo in the dimming module as well as
translucency, as I use both to make non-focus apps somewhat
ghosted/backgrounded.  I've observed when I get the ghosting, clicking between
two ghosted windows repeatedly causes them to continually dim further with the
translucency and never returning to full focus, thus the "echo" comment.  It
just keeps dimming until it's unviewable, or I restart compositing.

This seems to be present in more modules than just translucency potentially?

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[kwin] [Bug 366081] kwin's windows stay translucent after moving, become invisible

[Martin Gräßlin via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=366081

Martin Gräßlin  changed:

   What|Removed |Added

 Status|CONFIRMED   |RESOLVED
  Latest Commit||http://commits.kde.org/kwin
   ||/671740dc70c4d2fb091320c0da
   ||564cf2ea6029b2
 Resolution|--- |FIXED

--- Comment #11 from Martin Gräßlin  ---
Git commit 671740dc70c4d2fb091320c0da564cf2ea6029b2 by Martin Gräßlin.
Committed on 03/08/2016 at 14:16.
Pushed by graesslin into branch 'master'.

Ensure that EffectsHandlerImpl::slotClientShown is only invoked once per Window

Summary:
This fixes a regression introduced with
a1afeded6ae63e47d39fc08480e929c0451c51e8.
The connections were setup every the windowShown signal got emitted.
This caused effects to get multiple singals and start multiple animations
which then do not get cancelled correctly.

The incorrect behavior was most visible in the translucency effect which
did not cancel the move animation and the window stayed translucent.

Test Plan:
New test case which simulates the behavior of the translucency
effect.

Reviewers: #kwin, #plasma, sebas

Subscribers: kwin

Tags: #kwin

Differential Revision: https://phabricator.kde.org/D2346

M  +1-0autotests/integration/CMakeLists.txt
A  +3-0autotests/integration/effects/CMakeLists.txt
A  +185  -0autotests/integration/effects/translucency_test.cpp
[License: GPL (v2)]
M  +1-1effectloader.h
M  +1-0effects.cpp

http://commits.kde.org/kwin/671740dc70c4d2fb091320c0da564cf2ea6029b2

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[kwin] [Bug 366081] kwin's windows stay translucent after moving, become invisible

[Martin Gräßlin via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=366081

Martin Gräßlin  changed:

   What|Removed |Added

  Flags||ReviewRequest+
URL||https://phabricator.kde.org
   ||/D2346

--- Comment #10 from Martin Gräßlin  ---
Possible patch at https://phabricator.kde.org/D2346

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[kwin] [Bug 366081] kwin's windows stay translucent after moving, become invisible

[Martin Gräßlin via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=366081

--- Comment #9 from Martin Gräßlin  ---
Steps to reproduce:
1. Open an X11 window on desktop 1
2. Send it to desktop 2 through kwinactions menu
3. switch to desktop 2
4. move the window

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[kwin] [Bug 366081] kwin's windows stay translucent after moving, become invisible

[Michael Butash via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=366081

Michael Butash  changed:

   What|Removed |Added

 CC||mich...@butash.net

--- Comment #8 from Michael Butash  ---
like Sebastian, I see this and the ghost windowing as well.  I hadn't seen this
in Neon until almost 3-4 days later, now today after a reboot due to plasma
consuming 200% of my cpu cores, the windows staying translucent/dimmed is
happening immediately.  I posted my support info from kwin in Bug 342716, happy
to provide whatever else helps you fix these.

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[kwin] [Bug 366081] kwin's windows stay translucent after moving, become invisible

[Sebastian Kenn via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=366081

Sebastian Kenn  changed:

   What|Removed |Added

 CC||s.k...@gmx.de

--- Comment #7 from Sebastian Kenn  ---
I have the same issue,
KDE neon DevEd unstable, Plasma 5.7.2
nvidia GeForce GTX 750 Ti/PCIe/SSE2
It happens once after boot. Workaround with "compositing off/on".

If I don't correct it this way and move some windows, I sometimes see Bug
342716, like Thomas Lübking already explicated above, but don't find any
regularity.

It's an exhausting bug.

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[kwin] [Bug 366081] kwin's windows stay translucent after moving, become invisible

[Thomas Lübking via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=366081

--- Comment #6 from Thomas Lübking  ---
https://bugs.kde.org/show_bug.cgi?id=342716#c18

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[kwin] [Bug 366081] kwin's windows stay translucent after moving, become invisible

[David Kahles via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=366081

David Kahles  changed:

   What|Removed |Added

 CC||david.kahle...@gmail.com

--- Comment #5 from David Kahles  ---
It happens for me too.
But I can't reproduce it, I hit it only twice when moving Chromium by accident
(Chromium was maximized).

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[kwin] [Bug 366081] kwin's windows stay translucent after moving, become invisible

[Jonathan Riddell via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=366081

--- Comment #4 from Jonathan Riddell  ---
ooh it just happened again! Umbrello (a Qt5/KF5 app) after switching desktops
but same monitor.

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[kwin] [Bug 366081] kwin's windows stay translucent after moving, become invisible

[Bhushan Shah via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=366081

Bhushan Shah  changed:

   What|Removed |Added

 Ever confirmed|0   |1
 Status|UNCONFIRMED |CONFIRMED

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[kwin] [Bug 366081] kwin's windows stay translucent after moving, become invisible

[Jonathan Riddell via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=366081

Jonathan Riddell  changed:

   What|Removed |Added

 Ever confirmed|1   |0
 CC||j...@jriddell.org
 Status|CONFIRMED   |UNCONFIRMED

--- Comment #3 from Jonathan Riddell  ---
This happened to me this morning on un-suspending my computer and moving
windows to the second monitor, Firefox went translucent.  I'm on Neon dev
unstable (master Plasma branches).  I've not been able to recreate it since.

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[kwin] [Bug 366081] kwin's windows stay translucent after moving, become invisible

[Bhushan Shah via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=366081

Bhushan Shah  changed:

   What|Removed |Added

 CC||bhus...@gmail.com

--- Comment #2 from Bhushan Shah  ---
As reported on IRC earlier, 76fa302 is definitely good commit in KWIn.

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[kwin] [Bug 366081] kwin's windows stay translucent after moving, become invisible

[Ivan Čukić via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=366081

Ivan Čukić  changed:

   What|Removed |Added

 Ever confirmed|0   |1
 CC||ivan.cu...@kde.org
 Status|UNCONFIRMED |CONFIRMED

--- Comment #1 from Ivan Čukić  ---
Happens for me as well. Different types of windows - gtk, qt,
chromium-whatever-toolkit ...

Unfortunately, I was not able to discover a pattern.

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[kwin] [Bug 366081] kwin's windows stay translucent after moving, become invisible

[Sebastian Kügler via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=366081

Sebastian Kügler  changed:

   What|Removed |Added

Summary|kwin's windows stay |kwin's windows stay
   |translucent, become |translucent after moving,
   |invisible   |become invisible

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