[kwin] [Bug 392693] [wayland] - Blur effect isnt applied under wayland

[Oded Arbel]

https://bugs.kde.org/show_bug.cgi?id=392693

--- Comment #31 from Oded Arbel  ---
(In reply to Vlad Zahorodnii from comment #30)
> > but it doesn't work at all on windows where I set them to lower opacity by 
> > kwin rules
> 
> lowering the opacity is not enough, the application should also request
> blur. konsole does it. that's unrelated issue though.

I wish there was a kwin window rule property that you can ask to "blur behind
this transparent window".

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[kwin] [Bug 392693] [wayland] - Blur effect isnt applied under wayland

[Vlad Zahorodnii]

https://bugs.kde.org/show_bug.cgi?id=392693

--- Comment #30 from Vlad Zahorodnii  ---
> but it doesn't work at all on windows where I set them to lower opacity by 
> kwin rules

lowering the opacity is not enough, the application should also request blur.
konsole does it. that's unrelated issue though.

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[kwin] [Bug 392693] [wayland] - Blur effect isnt applied under wayland

[Oded Arbel]

https://bugs.kde.org/show_bug.cgi?id=392693

Oded Arbel  changed:

   What|Removed |Added

 CC||o...@geek.co.il

--- Comment #29 from Oded Arbel  ---
I may be missing something, but for me the blur desktop effect only works on
windows that have transparent areas (such as Konsole when I use a theme with a
transparent background), but it doesn't work at all on windows where I set them
to lower opacity by kwin rules or kwin window actions.

Operating System: KDE neon Testing Edition
KDE Plasma Version: 6.0.0
KDE Frameworks Version: 6.0.0
Qt Version: 6.6.2
Kernel Version: 6.5.0-21-generic (64-bit)
Graphics Platform: Wayland
Processors: 20 × 12th Gen Intel® Core™ i7-12700H
Memory: 31.0 GiB of RAM
Graphics Processor: Mesa Intel® Graphics

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[kwin] [Bug 392693] [wayland] - Blur effect isnt applied under wayland

[acidrums4]

https://bugs.kde.org/show_bug.cgi?id=392693

acidrums4  changed:

   What|Removed |Added

 CC||acidrums4+st...@gmail.com

--- Comment #28 from acidrums4  ---
Sorry for the noise - blur is not working for me with Wayland here with 5.23
(nor 5.22, nor 5.21, nor 5.20). It works fine with X11. Both blur and
background contrast effects are enabled. Still, when using Wayland the only
blurred thing I can see is the background of the lock screen.

The weird thing is that with my older PC it worked, but not sure why in this
one it won't. Using an integrated Intel graphics card.

I sincerely don't know what is going on, as this allegedly was fixed - no
answers after asking on Reddit, KDE or Gentoo forums. The output of my qdbus
org.kde.KWin /KWin supportInformation can be found in
https://pastebin.com/YfvcUrnh

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[kwin] [Bug 392693] [wayland] - Blur effect isnt applied under wayland

[Michail Vourlakos]

https://bugs.kde.org/show_bug.cgi?id=392693

Michail Vourlakos  changed:

   What|Removed |Added

 Resolution|--- |FIXED
 Status|REPORTED|RESOLVED

--- Comment #27 from Michail Vourlakos  ---
(In reply to Roman Gilg from comment #26)
> (In reply to Andrius Štikonas from comment #25)
> > When I upgraded to Plasma 5.17.4 (from Plasma 5.16.5) blur is now applied on
> > my system.
> 
> Can you confirm Michail that the issue is gone in most recent version of
> Plasma for you too?

yes I believe it is fixed... at latest Plasma versions I can not reproduce this
issue.

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[kwin] [Bug 392693] [wayland] - Blur effect isnt applied under wayland

[Roman Gilg]

https://bugs.kde.org/show_bug.cgi?id=392693

Roman Gilg  changed:

   What|Removed |Added

 CC||subd...@gmail.com

--- Comment #26 from Roman Gilg  ---
(In reply to Andrius Štikonas from comment #25)
> When I upgraded to Plasma 5.17.4 (from Plasma 5.16.5) blur is now applied on
> my system.

Can you confirm Michail that the issue is gone in most recent version of Plasma
for you too?

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[kwin] [Bug 392693] [wayland] - Blur effect isnt applied under wayland

[Andrius Štikonas]

https://bugs.kde.org/show_bug.cgi?id=392693

--- Comment #25 from Andrius Štikonas  ---
(In reply to Andrius Štikonas from comment #23)
> (In reply to Andrius Štikonas from comment #22)
> > After I booted with just laptop screen and blur was working, I plugged in my
> > external screen, this caused laptop screen to turn off. External screen had
> > no blur.
> > 
> > So I think somehow blur is lost during output switching. And it doesn't
> > matter whether it happens during plasma boot or later.
> 
> When booting with 2 screens on, blur works. So I think this confirms that
> something bad happens when output is switched off.

When I upgraded to Plasma 5.17.4 (from Plasma 5.16.5) blur is now applied on my
system.

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[kwin] [Bug 392693] [wayland] - Blur effect isnt applied under wayland

[Marcus Harrison]

https://bugs.kde.org/show_bug.cgi?id=392693

Marcus Harrison  changed:

   What|Removed |Added

 CC||mar...@harrisonland.co.uk

--- Comment #24 from Marcus Harrison  ---
Created attachment 123014
  --> https://bugs.kde.org/attachment.cgi?id=123014=edit
supportInformation output

This bug appears to be the same as the one I'm experiencing but I get different
symptoms.

In my case, plasma shell panels/pop-ups and translucent KWin decorations are
blurred correctly. However, setting translucency in Konsole does not apply the
blur. Starting Konsole with `konsole -platform xcb` applies the blur correctly.

Additionally, translucent KVantum themes are not blurred.

Attached supportInformation output.

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[kwin] [Bug 392693] [wayland] - Blur effect isnt applied under wayland

[Andrius Štikonas]

https://bugs.kde.org/show_bug.cgi?id=392693

--- Comment #23 from Andrius Štikonas  ---
(In reply to Andrius Štikonas from comment #22)
> After I booted with just laptop screen and blur was working, I plugged in my
> external screen, this caused laptop screen to turn off. External screen had
> no blur.
> 
> So I think somehow blur is lost during output switching. And it doesn't
> matter whether it happens during plasma boot or later.

When booting with 2 screens on, blur works. So I think this confirms that
something bad happens when output is switched off.

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[kwin] [Bug 392693] [wayland] - Blur effect isnt applied under wayland

[Andrius Štikonas]

https://bugs.kde.org/show_bug.cgi?id=392693

--- Comment #22 from Andrius Štikonas  ---
After I booted with just laptop screen and blur was working, I plugged in my
external screen, this caused laptop screen to turn off. External screen had no
blur.

So I think somehow blur is lost during output switching. And it doesn't matter
whether it happens during plasma boot or later.

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[kwin] [Bug 392693] [wayland] - Blur effect isnt applied under wayland

[Andrius Štikonas]

https://bugs.kde.org/show_bug.cgi?id=392693

--- Comment #21 from Andrius Štikonas  ---
(In reply to Vlad Zagorodniy from comment #20)
> Hmm, given the debug output I don't see a reason why blur is not working.

I did some more testing. The crucial thing seems to be that one output is
disabled in my case (laptop monitor ies turned off in systemsettings, only
external HDMI is used).

When I booted with external screen unplugged, so laptop's screen was used, blur
was enabled on boot without any further workarounds.

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[kwin] [Bug 392693] [wayland] - Blur effect isnt applied under wayland

[Vlad Zagorodniy]

https://bugs.kde.org/show_bug.cgi?id=392693

--- Comment #20 from Vlad Zagorodniy  ---
Hmm, given the debug output I don't see a reason why blur is not working.

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[kwin] [Bug 392693] [wayland] - Blur effect isnt applied under wayland

[Andrius Štikonas]

https://bugs.kde.org/show_bug.cgi?id=392693

--- Comment #19 from Andrius Štikonas  ---
Created attachment 116560
  --> https://bugs.kde.org/attachment.cgi?id=116560=edit
WAYLAND_DEBUG=1 konsole

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[kwin] [Bug 392693] [wayland] - Blur effect isnt applied under wayland

[Andrius Štikonas]

https://bugs.kde.org/show_bug.cgi?id=392693

--- Comment #18 from Andrius Štikonas  ---
(In reply to Andrius Štikonas from comment #17)
> Created attachment 116555 [details]
> supportInformation
> 
> So apparently in my case blur sometimes works but sometimes doesn't (e.g.
> yesterday it was working, today it stopped). At the moment I'm not sure what
> causes it to fail.

Ok, some further debugging shows that blur is fixed when I uncheck it in system
settings, apply settings, reenable blur and apply. Until next logout...

So it's simply not enable on boot.

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[kwin] [Bug 392693] [wayland] - Blur effect isnt applied under wayland

[Andrius Štikonas]

https://bugs.kde.org/show_bug.cgi?id=392693

--- Comment #17 from Andrius Štikonas  ---
Created attachment 116555
  --> https://bugs.kde.org/attachment.cgi?id=116555=edit
supportInformation

So apparently in my case blur sometimes works but sometimes doesn't (e.g.
yesterday it was working, today it stopped). At the moment I'm not sure what
causes it to fail.

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[kwin] [Bug 392693] [wayland] - Blur effect isnt applied under wayland

[Vlad Zagorodniy]

https://bugs.kde.org/show_bug.cgi?id=392693

--- Comment #16 from Vlad Zagorodniy  ---
qdbus org.kde.KWin /KWin supportInformation

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[kwin] [Bug 392693] [wayland] - Blur effect isnt applied under wayland

[Vlad Zagorodniy]

https://bugs.kde.org/show_bug.cgi?id=392693

--- Comment #15 from Vlad Zagorodniy  ---
(In reply to Andrius Štikonas from comment #14)
> To be more precise, in my case blur is sometimes not applied. E.g.
> everything under plasma bar is blured but when I move windows, blur is not
> applied.

Please post output of

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[kwin] [Bug 392693] [wayland] - Blur effect isnt applied under wayland

[Andrius Štikonas]

https://bugs.kde.org/show_bug.cgi?id=392693

--- Comment #14 from Andrius Štikonas  ---
(In reply to Andrius Štikonas from comment #13)
> Blur also doesn't work for me. I have background contrast effect enabled,
> but on dual screen setup I have one screen completely disabled.

To be more precise, in my case blur is sometimes not applied. E.g. everything
under plasma bar is blured but when I move windows, blur is not applied.

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[kwin] [Bug 392693] [wayland] - Blur effect isnt applied under wayland

[Andrius Štikonas]

https://bugs.kde.org/show_bug.cgi?id=392693

Andrius Štikonas  changed:

   What|Removed |Added

 CC||andr...@stikonas.eu

--- Comment #13 from Andrius Štikonas  ---
Blur also doesn't work for me. I have background contrast effect enabled, but
on dual screen setup I have one screen completely disabled.

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[kwin] [Bug 392693] [wayland] - Blur effect isnt applied under wayland

[bugzilla_noreply]

https://bugs.kde.org/show_bug.cgi?id=392693

tro...@free.fr changed:

   What|Removed |Added

 CC||tro...@free.fr

--- Comment #12 from tro...@free.fr ---
Maybe not the same bug, but on my end, the Blur effect works on Wayland, except
in Kvantum theme engine.

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[kwin] [Bug 392693] [wayland] - Blur effect isnt applied under wayland

[Dr . Chapatin]

https://bugs.kde.org/show_bug.cgi?id=392693

Dr. Chapatin  changed:

   What|Removed |Added

 CC||bugsefor...@gmx.com

--- Comment #11 from Dr. Chapatin  ---
I have two computers, blur effect is not working correctly under Wayland on
both.
I have both blur and transparency effects enabled, sometimes blur effect stops
working and menus become transparent.

I can reproduce:
open kate
click "File" in menu bar
while the "File" menu is still open, move cursor through the menu bar
The hovered menus open transparent

computer A: neon dev unstable, intel hd 4000, modesetting driver
computer B: Arch Linux, plasma 5.14 beta, intel hd graphics, modesetting driver

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[kwin] [Bug 392693] [wayland] - Blur effect isnt applied under wayland

[Michail Vourlakos]

https://bugs.kde.org/show_bug.cgi?id=392693

Michail Vourlakos  changed:

   What|Removed |Added

Version|git master  |5.13.1

--- Comment #10 from Michail Vourlakos  ---
more info about this...

when I reported this I was in KDE Neon, today I switched to TumbleWeed and the
issue remains but I found a way to solve temporarily.

1. User logs in wayland and blur effect does not work
2. User changes any setting wants for the blur effect from plasma
systemsettings and blur functions properly
3. If the user returns the blur settings to the one that were the first used
during log in the blur effect still works ok


So because blur effect in plasma 5.12 is different than the plasma 5.13 I can
guess the following. For some reason the blur effect isnt activated during
startup/login. The 5.12 implementation sticks to that disable because it trusts
that blur effect shouldnt work. On the other hand 5.13 implementation when
altering any blur effect setting it checks again if it can activate the blur
effect and that time it can.

The above is just a guess of course.

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[kwin] [Bug 392693] [wayland] - Blur effect isnt applied under wayland

[Michail Vourlakos]

https://bugs.kde.org/show_bug.cgi?id=392693

--- Comment #9 from Michail Vourlakos  ---
KWin Support Information:
The following information should be used when requesting support on e.g.
http://forum.kde.org.
It provides information about the currently running instance, which options are
used,
what OpenGL driver and which effects are running.
Please post the information provided underneath this introductory text to a
paste bin service
like http://paste.kde.org instead of pasting into support threads.

==

Version
===
KWin version: 5.12.4
Qt Version: 5.10.0
Qt compile version: 5.10.0
XCB compile version: 1.11.1

Operation Mode: Xwayland

Build Options
=
KWIN_BUILD_DECORATIONS: yes 
KWIN_BUILD_TABBOX: yes  
KWIN_BUILD_ACTIVITIES: yes  
HAVE_INPUT: yes 
HAVE_DRM: yes   
HAVE_GBM: yes   
HAVE_X11_XCB: yes   
HAVE_EPOXY_GLX: yes 
HAVE_WAYLAND_EGL: yes   

X11 
=== 
Vendor: The X.Org Foundation
Vendor Release: 11804000
Protocol Version/Revision: 11/0
SHAPE: yes; Version: 0x11
RANDR: yes; Version: 0x14
DAMAGE: yes; Version: 0x11
Composite: yes; Version: 0x4
RENDER: yes; Version: 0xb
XFIXES: yes; Version: 0x50
SYNC: yes; Version: 0x31
GLX: yes; Version: 0x0

Decoration
==
Plugin: org.kde.breeze
Theme: 
Blur: 0
onAllDesktopsAvailable: false
alphaChannelSupported: true
closeOnDoubleClickOnMenu: false
decorationButtonsLeft: 
decorationButtonsRight: 3, 5
borderSize: 0
gridUnit: 12
font: Aka-AcidGR-Muli,12,-1,5,50,0,0,0,0,0,Medium
smallSpacing: 3
largeSpacing: 12

Platform
==
Name: DRM
Active: true
Atomic Mode Setting: true

Options
===
focusPolicy: 0
nextFocusPrefersMouse: false
clickRaise: true
autoRaise: false
autoRaiseInterval: 0
delayFocusInterval: 0
shadeHover: false
shadeHoverInterval: 250
separateScreenFocus: false
placement: 4
focusPolicyIsReasonable: true
borderSnapZone: 10
windowSnapZone: 10
centerSnapZone: 0
snapOnlyWhenOverlapping: false
rollOverDesktops: true
focusStealingPreventionLevel: 1
legacyFullscreenSupport: false
operationTitlebarDblClick: 5000
operationMaxButtonLeftClick: 5000
operationMaxButtonMiddleClick: 5015
operationMaxButtonRightClick: 5014
commandActiveTitlebar1: 0
commandActiveTitlebar2: 30
commandActiveTitlebar3: 2
commandInactiveTitlebar1: 4
commandInactiveTitlebar2: 30
commandInactiveTitlebar3: 2
commandWindow1: 7
commandWindow2: 8
commandWindow3: 8
commandWindowWheel: 31
commandAll1: 10
commandAll2: 3
commandAll3: 14
keyCmdAllModKey: 16777251
showGeometryTip: false
condensedTitle: false
electricBorderMaximize: true
electricBorderTiling: true
electricBorderCornerRatio: 0.25
borderlessMaximizedWindows: true
killPingTimeout: 5000
hideUtilityWindowsForInactive: true
inactiveTabsSkipTaskbar: false
autogroupSimilarWindows: false
autogroupInForeground: true
compositingMode: 1
useCompositing: true
compositingInitialized: true
hiddenPreviews: 1
glSmoothScale: 2
xrenderSmoothScale: false
maxFpsInterval: 1666
refreshRate: 0
vBlankTime: 600
glStrictBinding: false
glStrictBindingFollowsDriver: true
glCoreProfile: true
glPreferBufferSwap: 99
glPlatformInterface: 2
windowsBlockCompositing: false

Screen Edges

desktopSwitching: false
desktopSwitchingMovingClients: false
cursorPushBackDistance: 1x1
timeThreshold: 150
reActivateThreshold: 300
actionTopLeft: 0
actionTop: 0
actionTopRight: 0
actionRight: 0
actionBottomRight: 0
actionBottom: 0
actionBottomLeft: 1
actionLeft: 0

Screens
===
Multi-Head: no
Active screen follows mouse:  no
Number of Screens: 1

Screen 0:
-
Name: DEL HDMI-A-1-DELL UP2716D/KRXTR73M581L
Geometry: 0,0,2560x1440
Scale: 1
Refresh Rate: 59.951


Compositing
===
Compositing is active
Compositing Type: OpenGL
OpenGL vendor string: Intel Open Source Technology Center
OpenGL renderer string: Mesa DRI Intel(R) HD Graphics 530 (Skylake GT2) 
OpenGL version string: 4.5 (Core Profile) Mesa 17.2.8
OpenGL platform interface: EGL
OpenGL shading language version string: 4.50
Driver: Intel
GPU class: Unknown
OpenGL version: 4.5
GLSL version: 4.50
Mesa version: 17.2.8
Linux kernel version: 4.13
Direct rendering: Requires strict binding: no
GLSL shaders:  yes
Texture NPOT support:  yes
Virtual Machine: 

[kwin] [Bug 392693] [wayland] - Blur effect isnt applied under wayland

[Martin Flöser]

https://bugs.kde.org/show_bug.cgi?id=392693

--- Comment #8 from Martin Flöser  ---
Please provide the output of qdbus org.kde.KWin /KWin supportInformation

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[kwin] [Bug 392693] [wayland] - Blur effect isnt applied under wayland

[Michail Vourlakos]

https://bugs.kde.org/show_bug.cgi?id=392693

--- Comment #7 from Michail Vourlakos  ---
(In reply to Martin Flöser from comment #6)
> Afaik the blur is only enabled by plasma if background contrast is also
> enabled. Please check whether enabling background contrast fixes the issue.

it didnt helped both for (master) and (5.12.4) versions in wayland.
Under XCB blur is applied correctly with or without Background contrast both
for (master) and (5.12.4)

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[kwin] [Bug 392693] [wayland] - Blur effect isnt applied under wayland

[Martin Flöser]

https://bugs.kde.org/show_bug.cgi?id=392693

--- Comment #6 from Martin Flöser  ---
Afaik the blur is only enabled by plasma if background contrast is also
enabled. Please check whether enabling background contrast fixes the issue.

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[kwin] [Bug 392693] [wayland] - Blur effect isnt applied under wayland

[Michail Vourlakos]

https://bugs.kde.org/show_bug.cgi?id=392693

--- Comment #5 from Michail Vourlakos  ---
just to add here that if under wayland I start plasmashell with xcb:
"plasmashell -platform xcb" then in that case blur is applied correctly

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[kwin] [Bug 392693] [wayland] - Blur effect isnt applied under wayland

[Michail Vourlakos]

https://bugs.kde.org/show_bug.cgi?id=392693

--- Comment #4 from Michail Vourlakos  ---

(In reply to Martin Flöser from comment #3)
> Is this a problem with a specific app which isn't blurred or a general
> problem?

a general one. This is how plasma is looking under wayland in my system. Blur
is enabled and I disabled the background contrast effects. This is happening
also with wayland-master version. Under X11 blur is going just fine both for
5.12 and master version.

https://drive.google.com/file/d/1aef4qyJVaB8X_NkgVQgTfBT42IJaWP7R/view?usp=sharing

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[kwin] [Bug 392693] [wayland] - Blur effect isnt applied under wayland

[Martin Flöser]

https://bugs.kde.org/show_bug.cgi?id=392693

--- Comment #3 from Martin Flöser  ---
Is this a problem with a specific app which isn't blurred or a general problem?

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[kwin] [Bug 392693] [wayland] - Blur effect isnt applied under wayland

[Michail Vourlakos]

https://bugs.kde.org/show_bug.cgi?id=392693

--- Comment #2 from Michail Vourlakos  ---
(In reply to Martin Flöser from comment #1)
> Blur works just fine for me.

Martin any idea where to look for this?

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[kwin] [Bug 392693] [wayland] - Blur effect isnt applied under wayland

[Martin Flöser]

https://bugs.kde.org/show_bug.cgi?id=392693

--- Comment #1 from Martin Flöser  ---
Blur works just fine for me.

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