Ubuntu
plasma-discover package

Slow, Unresponsive,Gui errors, segfault

Bug #1573994 reported by moacir on 2016-04-23

This bug affects 7 people

Affects		Status	Importance	Assigned to	Milestone
	plasma-discover (Ubuntu)	Fix Released	Undecided	Unassigned

Bug Description

Clean install
Kubuntu 16.04, released 04/21/2016.
muondiscover 5.6.2
Language: Brazilian Portuguese

1- Gui is really unresponsive
2- Text on gui are out of space.
Attached print screen

Execute "plasma-discover --listmodes" from console:
-What you expected to happen
Show Modes
- What happened instead
Segmentation Fault

2-Execute "plasma-discover" from console:
-What you expected to happen
Show normal output, with no sort errors, no ratings erros, no gui problems.
-What happened instead
log_attica_plugin: Loaded paths from config: (QUrl("http://download.kde.org/ocs/providers.xml"))
knewstuff: Initializing KNS3::Engine from ' "/etc/xdg/comic.knsrc" '
knewstuff: Loading KNewStuff3 config: "/etc/xdg/comic.knsrc"
knewstuff: Categories: ("Plasma Comic")
knewstuff: Using registry file: "/home/myuser/.local/share/knewstuff3/.knsregistry"
knewstuff: Loading KNS2 registry of files for the component: ""
knewstuff: Cache read... entries: 0
knewstuff: loading providers from "http://download.kde.org/ocs/providers.xml"
knewstuff: XmlLoader::load(): url: QUrl("http://download.kde.org/ocs/providers.xml")
log_attica_plugin: Loaded paths from config: (QUrl("http://download.kde.org/ocs/providers.xml"))
knewstuff: Initializing KNS3::Engine from ' "/etc/xdg/plasmoids.knsrc" '
knewstuff: Loading KNewStuff3 config: "/etc/xdg/plasmoids.knsrc"
knewstuff: Categories: ("Plasma 5 Plasmoid")
knewstuff: Loading KNS2 registry of files for the component: ""
knewstuff: Cache read... entries: 0
knewstuff: loading providers from "http://download.kde.org/ocs/providers.xml"
knewstuff: XmlLoader::load(): url: QUrl("http://download.kde.org/ocs/providers.xml")
log_attica_plugin: Loaded paths from config: (QUrl("http://download.kde.org/ocs/providers.xml"))
knewstuff: XmlLoader::slotJobData()
knewstuff: XmlLoader::slotJobData()
knewstuff: --Xml Loader-START--
knewstuff: "<providers>\n\n<provider>\n <id>opendesktop</id>\n <location>https://api.opendesktop.org/v1/</location>\n <name>openDesktop.org</name>\n <icon></icon>\n <termsofuse>https://opendesktop.org/terms/</termsofuse>\n <register>https://opendesktop.org/usermanager/new.php</register>\n <services>\n <person ocsversion=\"1.3\" />\n <friend ocsversion=\"1.3\" />\n <message ocsversion=\"1.3\" />\n <activity ocsversion=\"1.3\" />\n <content ocsversion=\"1.3\" />\n <fan ocsversion=\"1.3\" />\n <knowledgebase ocsversion=\"1.3\" />\n <event ocsversion=\"1.3\" />\n </services>\n</provider>\n\n</providers>\n"
knewstuff: --Xml Loader-END--
knewstuff: slotProvidersLoaded
knewstuff: Provider attributes: ""
log_attica_plugin: No credentials found
knewstuff: Engine addProvider called with provider with id "https://api.opendesktop.org/v1/"
knewstuff: XmlLoader::slotJobData()
knewstuff: XmlLoader::slotJobData()
log_attica_plugin: No credentials found
knewstuff: --Xml Loader-START--
knewstuff: "<providers>\n\n<provider>\n <id>opendesktop</id>\n <location>https://api.opendesktop.org/v1/</location>\n <name>openDesktop.org</name>\n <icon></icon>\n <termsofuse>https://opendesktop.org/terms/</termsofuse>\n <register>https://opendesktop.org/usermanager/new.php</register>\n <services>\n <person ocsversion=\"1.3\" />\n <friend ocsversion=\"1.3\" />\n <message ocsversion=\"1.3\" />\n <activity ocsversion=\"1.3\" />\n <content ocsversion=\"1.3\" />\n <fan ocsversion=\"1.3\" />\n <knowledgebase ocsversion=\"1.3\" />\n <event ocsversion=\"1.3\" />\n </services>\n</provider>\n\n</providers>\n"
knewstuff: --Xml Loader-END--
knewstuff: slotProvidersLoaded
knewstuff: Provider attributes: ""
log_attica_plugin: No credentials found
knewstuff: Engine addProvider called with provider with id "https://api.opendesktop.org/v1/"
knewstuff: providerInitialized "openDesktop.org"
knewstuff: providers loaded
knewstuff: providerInitialized "openDesktop.org"
knewstuff: providers loaded
knewstuff: loaded page 0 current page 0
knewstuff: "0,,,0,100" add: 37 keys: ("0,,,0,100")
knewstuff: loaded page 1 current page 1
knewstuff: "0,,,1,100" add: 0 keys: ("0,,,0,100", "0,,,1,100")
qrc:/qml/CategoryDisplay.qml:76: TypeError: Cannot read property 'rating' of null
qrc:/qml/CategoryDisplay.qml:76: TypeError: Cannot read property 'rating' of null
qrc:/qml/CategoryDisplay.qml:76: TypeError: Cannot read property 'rating' of null
qrc:/qml/CategoryDisplay.qml:76: TypeError: Cannot read property 'rating' of null
qrc:/qml/CategoryDisplay.qml:76: TypeError: Cannot read property 'rating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
knewstuff: loaded page 0 current page 0
knewstuff: "0,,,0,100" add: 100 keys: ("0,,,0,100", "0,,,1,100")
knewstuff: loaded page 1 current page 1
knewstuff: "0,,,1,100" add: 88 keys: ("0,,,0,100", "0,,,1,100")
knewstuff: loaded page 2 current page 2
knewstuff: "0,,,2,100" add: 0 keys: ("0,,,0,100", "0,,,2,100", "0,,,1,100")
qrc:/qml/CategoryDisplay.qml:76: TypeError: Cannot read property 'rating' of null
qrc:/qml/CategoryDisplay.qml:76: TypeError: Cannot read property 'rating' of null
qrc:/qml/CategoryDisplay.qml:76: TypeError: Cannot read property 'rating' of null
qrc:/qml/CategoryDisplay.qml:76: TypeError: Cannot read property 'rating' of null
qrc:/qml/CategoryDisplay.qml:76: TypeError: Cannot read property 'rating' of null
qrc:/qml/CategoryDisplay.qml:76: TypeError: Cannot read property 'rating' of null
qrc:/qml/CategoryDisplay.qml:76: TypeError: Cannot read property 'rating' of null
qrc:/qml/CategoryDisplay.qml:76: TypeError: Cannot read property 'rating' of null
qrc:/qml/CategoryDisplay.qml:76: TypeError: Cannot read property 'rating' of null
qrc:/qml/CategoryDisplay.qml:76: TypeError: Cannot read property 'rating' of null
qrc:/qml/CategoryDisplay.qml:76: TypeError: Cannot read property 'rating' of null
qrc:/qml/CategoryDisplay.qml:76: TypeError: Cannot read property 'rating' of null
qrc:/qml/CategoryDisplay.qml:76: TypeError: Cannot read property 'rating' of null
qrc:/qml/CategoryDisplay.qml:76: TypeError: Cannot read property 'rating' of null
qrc:/qml/CategoryDisplay.qml:76: TypeError: Cannot read property 'rating' of null
qrc:/qml/CategoryDisplay.qml:76: TypeError: Cannot read property 'rating' of null
qrc:/qml/CategoryDisplay.qml:76: TypeError: Cannot read property 'rating' of null
qrc:/qml/CategoryDisplay.qml:76: TypeError: Cannot read property 'rating' of null
qrc:/qml/CategoryDisplay.qml:76: TypeError: Cannot read property 'rating' of null
qrc:/qml/CategoryDisplay.qml:76: TypeError: Cannot read property 'rating' of null
qrc:/qml/CategoryDisplay.qml:76: TypeError: Cannot read property 'rating' of null
qrc:/qml/CategoryDisplay.qml:76: TypeError: Cannot read property 'rating' of null
qrc:/qml/CategoryDisplay.qml:76: TypeError: Cannot read property 'rating' of null
qrc:/qml/CategoryDisplay.qml:76: TypeError: Cannot read property 'rating' of null
qrc:/qml/CategoryDisplay.qml:76: TypeError: Cannot read property 'rating' of null
qrc:/qml/CategoryDisplay.qml:76: TypeError: Cannot read property 'rating' of null
qrc:/qml/CategoryDisplay.qml:76: TypeError: Cannot read property 'rating' of null
qrc:/qml/CategoryDisplay.qml:76: TypeError: Cannot read property 'rating' of null
qrc:/qml/CategoryDisplay.qml:76: TypeError: Cannot read property 'rating' of null
qrc:/qml/CategoryDisplay.qml:76: TypeError: Cannot read property 'rating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
qrc:/qml/CategoryDisplay.qml:60: TypeError: Cannot read property 'sortableRating' of null
knewstuff: Write registry
knewstuff: Write registry

Thanks

Revision history for this message

moacir (moacirrf) wrote on 2016-04-23:

plasma-discoverBug.png Edit (387.6 KiB, image/png)

Revision history for this message

moacir (moacirrf) wrote on 2016-04-23:

kubuntu-16.04-desktop-amd64

Revision history for this message

Launchpad Janitor (janitor) wrote on 2016-04-23:

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in plasma-discover (Ubuntu):
status:	New → Confirmed

Revision history for this message

moacir (moacirrf) wrote on 2016-04-23:

Im sorry for write here....
Can you tell me where i found source code of plasma-discover?
Thanks

Revision history for this message

Matthias Klumpp (ximion) wrote on 2016-04-25:

Ensure you have the source-package sources enabled ("deb-src" lines in /etc/apt/sources.list)
Then run
```
apt source plasma-discover
```
to obtain the sources.

Revision history for this message

Aleix Pol (aleixpol-kde) wrote on 2016-04-27:

This is fixed in the stable branch and should get on your systems soon.

Revision history for this message

moacir (moacirrf) wrote on 2016-04-27:

Matthias Klumpp and Aleix Pol.

Thanks for reply, i will wait until receive the update.

I made a clone on https://github.com/KDE/discover, master branch.
Compile and install
Run plasma-discover
I receive an error
qrc:/qml/FeaturedImage.qml:3:1: QML FeaturedImage: Binding loop detected for property "isCurrentItem"

So i open FeaturedModel.qml
And comment function
....
   function getFeatured(data) {
      return
      /*
        if(data==null)
            return

        for(var packageName in data) {
            var currentData = data[packageName]
            model.append({
                "text": alternateIfNull(currentData.text, currentData.package),
                "color": alternateIfNull(currentData.color, "red"),
                "image": currentData.image,
                "icon": alternateIfNull(currentData.icon, "kde"),
                "comment": alternateIfNull(currentData.comment, ""),
                "packageName": alternateIfNull(currentData.package, ""),
                "url": currentData.url
            })
        }
        initFeatured()
        */
    }
.....
Now i dont have carroussel banner, but im using plasma-discover very well and fast.
Thanks.

Revision history for this message

moacir (moacirrf) wrote on 2016-05-15:

Hi,maybe it will help anybody.
I think i found what is causing the unresponsive problem, DropShadow effect.
File:FeaturedBanner.qml

    DropShadow {
                anchors.fill: flick
                horizontalOffset: 3
                verticalOffset: 3
                radius: 8.0
                samples: 16
                color: "#80000000"
                source: flick
            }

If a comment samples, solved problem.
I tried "radius: 2.0,samples: 4" with no success.

I created a simple Qt helloworld application with DropShadow and same problem occurred, confirming that is a QtGraphicalEffects problem.

My computer configuration is:
Cpu
Intel(R) Core(TM)2 Duo CPU E7500 @ 2.93GHz

Graphic Card
VGA compatible controller: Intel Corporation 82G33/G31 Express Integrated Graphics Controller (rev 10)

Memory
4Gb Dual Channel

I try replicate on other machine with Core I3 and Intel H61 Express Chipset
No problem, everything runs correctly.

Obs.:
On line 122 i added "wrapMode : Text.WordWrap"
To solve exploded text.

Thanks

Revision history for this message

Marco Dalla Libera (marco-dallas95) wrote on 2016-05-22:

Hi,

I reported this bug: https://bugs.kde.org/show_bug.cgi?id=363392 to the KDE team but they say that the problem is solved and that I have to ask the kubuntu developers to release the latest stable packages, probably the 5.6.4 version.

Thanks!

Revision history for this message

Matthias Klumpp (ximion) wrote on 2016-06-12:

#10

Well, 5.6.4 is in Ubuntu Xenial...
Can you update the package and see if the problem still exists?

Changed in plasma-discover (Ubuntu):
status:	Confirmed → Incomplete

Revision history for this message

Matthias Klumpp (ximion) wrote on 2016-06-12:

#11

Urgh, wrong, Xenial has 5.6.2.

Changed in plasma-discover (Ubuntu):
status:	Incomplete → Triaged

Revision history for this message

Marco Dalla Libera (marco-dallas95) wrote on 2016-08-16:

#12

The problem is still present at this time in Kubuntu 16.04.1, as also confirmed by bug #1609501

Revision history for this message

Flamewart (mojinopocoescozio) wrote on 2016-09-01:

#13

Same problem happens to me with Kubuntu 16.04.1, which has version 5.6.2 of Discover.

The out of space text in the upper highlighted apps is really annoying.

Revision history for this message

Scarlett Gately Moore (scarlettmoore) wrote on 2024-03-29:

#14

This bug is very old, if this is still an issue please update bug with info on a supported release.

Changed in plasma-discover (Ubuntu):
status:	Triaged → Incomplete

Revision history for this message

moacir (moacirrf) wrote on 2024-03-29:

#15

You're right, thanks for remember me know.
I will try to mark as fixed.

Thanks

Revision history for this message

moacir (moacirrf) wrote on 2024-03-29:

#16

Old bug that has already been fixed.

Changed in plasma-discover (Ubuntu):
status:	Incomplete → Fix Released

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Bug #1609501

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Ubuntuplasma-discover package

Slow, Unresponsive,Gui errors, segfault

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plasma-discover package