[kwin] [Bug 368814] Compositor fails to load desktop effects with OpenGL

[Andrew Crouthamel]

https://bugs.kde.org/show_bug.cgi?id=368814

Andrew Crouthamel  changed:

   What|Removed |Added

 Status|NEEDSINFO   |RESOLVED
 Resolution|WAITINGFORINFO  |WORKSFORME

--- Comment #12 from Andrew Crouthamel  ---
Dear Bug Submitter,

This bug has been in NEEDSINFO status with no change for at least 30 days. The
bug is now closed as RESOLVED > WORKSFORME due to lack of needed information.

For more information about our bug triaging procedures please read the wiki
located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

Thank you for helping us make KDE software even better for everyone!

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[kwin] [Bug 368814] Compositor fails to load desktop effects with OpenGL

[Andrew Crouthamel]

https://bugs.kde.org/show_bug.cgi?id=368814

Andrew Crouthamel  changed:

   What|Removed |Added

   Keywords||triaged

--- Comment #11 from Andrew Crouthamel  ---
Dear Bug Submitter,

This bug has been in NEEDSINFO status with no change for at least 15 days.
Please provide the requested information as soon as possible and set the bug
status as REPORTED. Due to regular bug tracker maintenance, if the bug is still
in NEEDSINFO status with no change in 30 days, the bug will be closed as
RESOLVED > WORKSFORME due to lack of needed information.

For more information about our bug triaging procedures please read the wiki
located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

If you have already provided the requested information, please set the bug
status as REPORTED so that the KDE team knows that the bug is ready to be
confirmed.

Thank you for helping us make KDE software even better for everyone!

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[kwin] [Bug 368814] Compositor fails to load desktop effects with OpenGL

[Martin Gräßlin via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=368814

--- Comment #10 from Martin Gräßlin  ---
and how do you know that Alex is using an NVIDIA driver? We don't have that
information and thus we must assume that it's not the same issue and that you
are hijacking this bug report. Sorry, but that's experience here: just because
it might be related doesn't mean it's related. Especially not if drivers are
involved.

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[kwin] [Bug 368814] Compositor fails to load desktop effects with OpenGL

[Stuart Citrin via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=368814

--- Comment #9 from Stuart Citrin  ---
I am hijacking nothing!.  I am reporting the same issue and experiencing and
confirming the same behavior that Alex has reported.  What I am adding to the
discusson is that the bug only occurs when using the proprietary Nvidia driver
and does not occur when using the open source Nouveau driver.

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[kwin] [Bug 368814] Compositor fails to load desktop effects with OpenGL

[Martin Gräßlin via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=368814

--- Comment #8 from Martin Gräßlin  ---
@Stuart: you are hijacking a bug report. Alex's issue has nothing to do with
your issue. I'm not going to respond except this pointing of bug report
hijacking.

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[kwin] [Bug 368814] Compositor fails to load desktop effects with OpenGL

[Stuart Citrin via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=368814

--- Comment #7 from Stuart Citrin  ---
Clarification of paragraph 1:

When I say the bug is reproducible, what I mean is:

1. Use proprietary Nvidia drive.
2 Boot machine into plasma desktop, with plasma/kwin version 5.8.2.
3. If backend of compositor is set to opengl, desktop effects do not work.
4. If change backend to XRender, desktop effects do  work.
5.  If change backend  back to open gl, effects stop working.

This behavior does not occur when using the open source Nouveau driver.   
Behavior did not occur with 5.8.1 when using the proprietary Nvidia driver.
Switching back to an earlier proprietary driver which did work with 5.8.1  does
not fix the problem when using 5.8.2.

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[kwin] [Bug 368814] Compositor fails to load desktop effects with OpenGL

[Stuart Citrin via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=368814

--- Comment #6 from Stuart Citrin  ---
@Martin

Please read the post (comment 4) again carefully.  The second paragraph in the
post is probably irrelevant to the issue.  The popups are probably due to 
current incompatibility of the  370xx and 304xx drivers with the specific card.

(See first paragraph.) Different 340xx drivers (which is the version
recommended by Nvidia as compatible with the card) were tried including one
that has worked fine in the past with 5.8.1.   I suppose I could rewind to
version 5.8.1 and use the current 340.98 driver to definitively confirm that
the problem is in the transition from 5.8.1 go 5.8.2, but this is a huge amount
of work and time.too many packages. 

Please try to boot 5.8.2 with an appropriate proprietary nvidia driver on a
machine with nvidia graphics and see what happens when you set the back end to
opengl.

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[kwin] [Bug 368814] Compositor fails to load desktop effects with OpenGL

[Martin Gräßlin via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=368814

Martin Gräßlin  changed:

   What|Removed |Added

 Status|UNCONFIRMED |NEEDSINFO
 Resolution|--- |WAITINGFORINFO

--- Comment #5 from Martin Gräßlin  ---
@Stuart: you have a broken driver installation.  The popup comes from Plasma
and not KWin. Overall that looks like a broken driver. Please contact a support
forum on how to fix the driver.

@Alex: still waiting for your glxinfo.

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[kwin] [Bug 368814] Compositor fails to load desktop effects with OpenGL

[Stuart Citrin via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=368814

--- Comment #4 from Stuart Citrin  ---
This bug is consistently reproducible but only when using the proprietary
nvidia driver.  It does not occur when using the nouveau driver. I have a
geforce 210(NV50) card and the recommended proprietary driver for that card is
nvidia340xx series.  The bug did not occur during plasma/kde 5.8.1 and only
appeared after the update to 5.8.2.  To rule out the possibility that it might
have been an nvidia issue, I rewound the nvidia340xx driver to the version I
was using last August (340.96) and it still occurred. (The current nvidia
version is 340.98).  Note the 340.96 worked fine with 5.7 and 5.8.1.

I also tried the current nvdia 370xx version and 304xx.  In the past these have
worked with that card.  But plasma will not instantiate with these versions. (X
does start).  The message one gets is a popup stating that plasma is unable to
start as it could not correctly use OpenGl2(even though the compositor is set
to use XRender.)  This is probably all just noise, but the information is
provided to be complete.

Work around is to use the nouveau driver or set the compositer to use XRender
which seems to work fine (unless I guess someone is really into 3-D games or
something.)

glxinfo attached.  Generated with it in hosed state, that is with the OpenGl2
backend enabled, proprietary driver, desktop effects not working.

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[kwin] [Bug 368814] Compositor fails to load desktop effects with OpenGL

[Stuart Citrin via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=368814

Stuart Citrin  changed:

   What|Removed |Added

 CC||ctrn...@gmail.com

--- Comment #3 from Stuart Citrin  ---
Created attachment 101754
  --> https://bugs.kde.org/attachment.cgi?id=101754=edit
glxinfo, opengl2 backend, compositor dead

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[kwin] [Bug 368814] Compositor fails to load desktop effects with OpenGL

[Martin Gräßlin via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=368814

--- Comment #2 from Martin Gräßlin  ---
Please provide output of glxinfo

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[kwin] [Bug 368814] Compositor fails to load desktop effects with OpenGL

[Jonathan Riddell via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=368814

Jonathan Riddell  changed:

   What|Removed |Added

  Component|Packages User Edition   |general
Product|neon|kwin
   Assignee|neon-b...@kde.org   |kwin-bugs-n...@kde.org
   Target Milestone|--- |5

--- Comment #1 from Jonathan Riddell  ---
Moving to KWIn.  This works for me and we make no changes to KWin codebase.

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