[Oyranos-devel] Failure to run color kwin's correction on leap 42.2: "No such object path '/modules/kolorserver'"

[Tobias Schula]

Trying to enable kwin's color correction in leap 42.2, but it's not
working. When I enable it and hit apply in the systemsettings module, it
gives me the following dbus error. I've installed the packages from the
stable and later
git repo on open build service. Compicc is working.


~> dbus-monitor | grep kolor
string
"type='signal',sender='org.kde.kded5',path='/modules/kolorserver',interface='org.kde.KolorServer',member='outputClutsChanged'"
string
"type='signal',sender='org.kde.kded5',path='/modules/kolorserver',interface='org.kde.KolorServer',member='regionClutsChanged'"
string
"type='signal',sender='org.kde.kded5',path='/modules/kolorserver',interface='org.kde.KolorServer',member='updateSucceeded'"
string
"type='signal',sender='org.kde.kded5',path='/modules/kolorserver',interface='org.kde.KolorServer',member='updateFailed'"
method call sender=:1.184 -> dest=org.kde.kded5 serial=1226
path=/modules/kolorserver; interface=org.kde.KolorServer;
member=getVersionInfo
method call sender=:1.184 -> dest=org.kde.kded5 serial=1227
path=/modules/kolorserver; interface=org.kde.KolorServer;
member=getOutputCluts
method call sender=:1.184 -> dest=org.kde.kded5 serial=1228
path=/modules/kolorserver; interface=org.kde.KolorServer;
member=getRegionCluts
string "No such object path '/modules/kolorserver'"
string "No such object path '/modules/kolorserver'"
string "No such object path '/modules/kolorserver'"
string
"type='signal',sender='org.kde.kded5',path='/modules/kolorserver',interface='org.kde.KolorServer',member='updateSucceeded'"
string
"type='signal',sender='org.kde.kded5',path='/modules/kolorserver',interface='org.kde.KolorServer',member='updateFailed'"
string
"type='signal',sender='org.kde.kded5',path='/modules/kolorserver',interface='org.kde.KolorServer',member='outputClutsChanged'"
string
"type='signal',sender='org.kde.kded5',path='/modules/kolorserver',interface='org.kde.KolorServer',member='regionClutsChanged'"

[Casian Andrei]

Hello,

Haven't tried it in years, but it is possible that you haven't installed
"kolorserver". There should be a kded module named "kolorserver" for
this to work.

Regards,
Casian

Post by Tobias Schula
Trying to enable kwin's color correction in leap 42.2, but it's not
working. When I enable it and hit apply in the systemsettings module, it
gives me the following dbus error. I've installed the packages from the
stable and later
git repo on open build service. Compicc is working.
~> dbus-monitor | grep kolor
string
"type='signal',sender='org.kde.kded5',path='/modules/kolorserver',interface='org.kde.KolorServer',member='outputClutsChanged'"
string
"type='signal',sender='org.kde.kded5',path='/modules/kolorserver',interface='org.kde.KolorServer',member='regionClutsChanged'"
string
"type='signal',sender='org.kde.kded5',path='/modules/kolorserver',interface='org.kde.KolorServer',member='updateSucceeded'"
string
"type='signal',sender='org.kde.kded5',path='/modules/kolorserver',interface='org.kde.KolorServer',member='updateFailed'"
method call sender=:1.184 -> dest=org.kde.kded5 serial=1226
path=/modules/kolorserver; interface=org.kde.KolorServer;
member=getVersionInfo
method call sender=:1.184 -> dest=org.kde.kded5 serial=1227
path=/modules/kolorserver; interface=org.kde.KolorServer;
member=getOutputCluts
method call sender=:1.184 -> dest=org.kde.kded5 serial=1228
path=/modules/kolorserver; interface=org.kde.KolorServer;
member=getRegionCluts
string "No such object path '/modules/kolorserver'"
string "No such object path '/modules/kolorserver'"
string "No such object path '/modules/kolorserver'"
string
"type='signal',sender='org.kde.kded5',path='/modules/kolorserver',interface='org.kde.KolorServer',member='updateSucceeded'"
string
"type='signal',sender='org.kde.kded5',path='/modules/kolorserver',interface='org.kde.KolorServer',member='updateFailed'"
string
"type='signal',sender='org.kde.kded5',path='/modules/kolorserver',interface='org.kde.KolorServer',member='outputClutsChanged'"
string
"type='signal',sender='org.kde.kded5',path='/modules/kolorserver',interface='org.kde.KolorServer',member='regionClutsChanged'"
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[Tobias Schula]

Hello!

There is no .desktop for kolorserver in the package "kolor-manager" like it
was for 13.2:

/usr/share/kservices5/kcm_kmdevices.desktop
/usr/share/kservices5/kcm_kminfo.desktop
/usr/share/kservices5/kcm_kmsettings.desktop
/usr/share/kservices5/settings-kolor-management.desktop

It is still in the package from 42.2, but obliviously in the version for kde4:

/usr/share/kde4/services/kded/kolorserver.desktop
/usr/share/kde4/services/kmdevices.desktop
/usr/share/kde4/services/kminfo.desktop
/usr/share/kde4/services/kmsettings.desktop
/usr/share/kde4/services/settings-kolor-management.desktop


But I don't know if it will ever work for plasma 5, I just read in the release
notes for 5,9 that they dropped the OpenGL color correction. It's sad, because
it was working for me without any problems for years in kde4. Will there be an
update for KWin, especially now that Wayland is coming or will there only
Compicc be left for full screen color correction?

And there will also be more wide gamut screens on the desktop in the future

http://appleinsider.com/articles/16/07/08/iphone-7-and-apples-next-retina-display-frontier-wide-color-

Greetings

Tobias

commit 17e0bad922c7b9b17164987d2a4d64bff936edae (patch)
tree e35166d5933aa782ad6994a8a3625ac52e24de37
parent 2619ddf02e4efa2e670650b4f2e79fff7545d96b (diff)
Drop OpenGL based color correction from KWin
The feature has always been considered experimental. Unfortunately it is
completely unmaintained and hasn't seen any commits in years. It
requires kolor-manager to function, but that has not seen a release
based on frameworks yet. This makes it difficult to maintain. In fact I
have never been able from the introduction till now to setup a color
corrected system. One needs kolor-manager and oyranos and especially the
latter is hardly available on any linux distribution (e.g. not on the
Debian/Ubuntu systems).
Due to being unmaintained color correction in KWin did not keep up with
recent changes. Neither did it see any updates during the xlib->xcb
port, nor during the Wayland port. Especially the Wayland port with the
rendering changes make it unlikely to function correctly. E.g. Wayland
introduced a proper per-screen rendering, while color correction did a
"fake" per screen rendering. How that is going to work in combination is
something nobody ever tried. Now after the introduction of proper
per-screen rendering the solution would be to port color correction to
the new api, but that never happened.
Color correction also modified the shaders, but a newer shader API got
introduced some time ago. Whether the color correction shader support
that or not, is unknown to me. Also which shader language versions are
supported. I know it was based on 3d texture support, which back on
introduction was partially lacking in OpenGL ES. Nowadays that changed,
but color correction didn't update.
Last but not least it is completely X11 based and there is no work on
how to make it work with Wayland.
Given all the problems, especially the fact that it is unmaintained and
cannot be setup on my system, means to me that the only solution is to
remove it.
I'm open to having it reintroduced in future, but only if the
availability on Linux distributions gets addressed before. As long as
major linux distributions do not ship this feature, it should not be in
KWin. Given that I must say that it was a mistake to add it in the first
place and I need to point out that I was against the merge back then.
Reviewers: #kwin, #plasma
Subscribers: plasma-devel, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D3402
https://cgit.kde.org/kwin.git/commit/?

id=17e0bad922c7b9b17164987d2a4d64bff936edae

Hello,
Haven't tried it in years, but it is possible that you haven't installed
"kolorserver". There should be a kded module named "kolorserver" for
this to work.
Regards,
Casian

Post by Tobias Schula
Trying to enable kwin's color correction in leap 42.2, but it's not
working. When I enable it and hit apply in the systemsettings module, it
gives me the following dbus error. I've installed the packages from the
stable and later
git repo on open build service. Compicc is working.
~> dbus-monitor | grep kolor
string
"type='signal',sender='org.kde.kded5',path='/modules/kolorserver',interfac
e='org.kde.KolorServer',member='outputClutsChanged'">
string
"type='signal',sender='org.kde.kded5',path='/modules/kolorserver',interfac
e='org.kde.KolorServer',member='regionClutsChanged'">
string
"type='signal',sender='org.kde.kded5',path='/modules/kolorserver',interfac
e='org.kde.KolorServer',member='updateSucceeded'">
string
"type='signal',sender='org.kde.kded5',path='/modules/kolorserver',interfac
e='org.kde.KolorServer',member='updateFailed'" method call sender=:1.184
-> dest=org.kde.kded5 serial=1226
path=/modules/kolorserver; interface=org.kde.KolorServer;
member=getVersionInfo
method call sender=:1.184 -> dest=org.kde.kded5 serial=1227
path=/modules/kolorserver; interface=org.kde.KolorServer;
member=getOutputCluts
method call sender=:1.184 -> dest=org.kde.kded5 serial=1228
path=/modules/kolorserver; interface=org.kde.KolorServer;
member=getRegionCluts
string "No such object path '/modules/kolorserver'"
string "No such object path '/modules/kolorserver'"
string "No such object path '/modules/kolorserver'"
string
"type='signal',sender='org.kde.kded5',path='/modules/kolorserver',interfac
e='org.kde.KolorServer',member='updateSucceeded'">
string
"type='signal',sender='org.kde.kded5',path='/modules/kolorserver',interfac
e='org.kde.KolorServer',member='updateFailed'">
string
"type='signal',sender='org.kde.kded5',path='/modules/kolorserver',interfac
e='org.kde.KolorServer',member='outputClutsChanged'">
string
"type='signal',sender='org.kde.kded5',path='/modules/kolorserver',interfac
e='org.kde.KolorServer',member='regionClutsChanged'"
--------------------------------------------------------------------------
---- Announcing the Oxford Dictionaries API! The API offers world-renowned
dictionary content that is easy and intuitive to access. Sign up for an
account today to start using our lexical data to power your apps and
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http://sdm.link/oxford
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----------------------------------------------------------------------------
-- Announcing the Oxford Dictionaries API! The API offers world-renowned
dictionary content that is easy and intuitive to access. Sign up for an
account today to start using our lexical data to power your apps and
projects. Get started today and enter our developer competition.
http://sdm.link/oxford
_______________________________________________
Oyranos-devel mailing list
https://lists.sourceforge.net/lists/listinfo/oyranos-devel