Qt is an application framework originally created by Trolltech and currently managed by Digia. The KDE desktop uses the Qt framework for its applications.

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8
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149 views

How to change index in OptionSelector immediately (without animation)?

In my app, I use an OptionSelector to choose from a list of bike stations. I also have a map component with placemarkers for each station. When I tap a placemarker, it also changes the OptionSelector ...
3
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144 views

How to make Qt apps use GTK+ style in Xubuntu 15.04?

I'm using Ubuntu 15.04 right now, and Qt apps like qBittorrent and Clementine looks like they were GTK+ apps, they use the systems icons and style. But I installed Xubuntu in another PC and doesn't ...
3
votes
0answers
121 views

How can I get menu items in a Qt Quick application?

I'm using Qt Creator 3.1.1 on Ubuntu 14.10 (the version installed when you install Ubuntu SDK - the two seem to be the same application). I'm running the default Unity 7 desktop. When I create a new ...
2
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0answers
35 views

Can't start ubuntu-sdk

On Ubuntu 14.04.1 LTS 64 bit, I did: sudo add-apt-repository ppa:ubuntu-sdk-team/ppa sudo apt-get update && sudo apt-get install ubuntu-sdk sudo apt-get update && sudo apt-get ...
2
votes
0answers
169 views

Installing android studio

When I tried to install android studio on my 14.04LTS ubuntu system on opt directory as according to mentioned on by clayton(ubuntu user) but I could not install it as accordingly. 1.unpack android ...
2
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0answers
48 views

How to force use of “overflow menu” for actions on header bar?

I am using header actions in my Ubuntu SDK app, but I would like to avoid clutter on the header bar. I have noticed that the Android-style "overflow menu" autocreates itself after a certain number of ...
2
votes
0answers
164 views

Font hinting problems in Dropbox, other Qt applications

I'm using Ubuntu 14.04 and font hinting works perfectly as usual, except for a couple of applications: Dropbox's preferences and Dwarf Therapist. Since they are both Qt apps, I figure that's where the ...
2
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0answers
614 views

How build against qt 5.3.1?

Trying to build qt-creator v3.2.2 from source on Ubuntu 14.10. Fails. Qmake can't find qt5.3.1 $ qmake -r ... Project WARNING: QmlDesigner plugin has been disabled. Project WARNING: This plugin ...
2
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418 views

run qt designer/qt assistant with commands designer/assitant respectively

I'm used to an environment where I run the qt designer/qt assistant simply typing designer/assitant in the terminal. I am talking about qt 4. I've been installing packages such as qtcreator and ...
2
votes
0answers
133 views

Unity launcher, dash and menu fonts are not anti-aliased

I am running Ubuntu 14.04. After installing Qt4 settings manager and tinkering with it (changing the font face for Qt apps) I notice that unity launcher, dash and menu and date indicator fonts are not ...
2
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0answers
338 views

Multitouch in Qt

I've got a fresh install of Kubuntu 14.04 and Qt Creator/5.2.1, and I'm trying to get multi-touch working for the example applications like photosurface. My input device is an Acer T272HL 10 point ...
2
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260 views

Puzzle Game QML GridView Animation Problems

I've been working on a puzzle game for Ubuntu Touch and I'm facing some issues with animations. The problem seems to occurs when GridView animations (add, move, remove...) play too fast. Something ...
2
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0answers
355 views

After compiling QT 5 how do I to update my system? With update-alternatives?

I'm on Ubuntu 12.04. I followed the instructions in this guide in order to compile QT5. Everything compiled fine. My problem now is that my QT related programs are still pointing to an older ...
2
votes
0answers
515 views

Qt 5.1.1 installation problem

I am new to ubuntu and using 12.04 LTS. I tried to install Qt5.1.1 without software manager. I downloaded the qt-linux-opensource-5.1.1-x86-offline.run file and ran it. It ran smoothly and got a ...
2
votes
0answers
566 views

Amarok doesn't start after qt4-related ubuntu updates (from raring-updates)

Last Monday I updated my Ubuntu 13.04 and there were a bunch of qt4 related updates. (I don't know how to have a list of the updated packages which isn't taking a screenshot of Ubuntu Software Center ...
2
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0answers
201 views

Compose Key combinations are wrong in KDE/QT apps

On Kubuntu 12.04 LTS. For some reason, Qt applications (Kate, Konsole, etc.) were loading the ISO8859-1 Compose key file, instead of UTF-8. Other applications (Chrome and Java apps, for example) were ...
2
votes
0answers
216 views

PySide application lost icons when upgraded to Ubuntu 13.04

I'm developing an application in Python 3 using PySide. I upgraded my system form 12.10 to 13.04 today, and now I no longer have icons in my toolbar. The icons are loaded using QIcon.fromTheme(). Does ...
2
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0answers
1k views

When I install Xubuntu 12.04, the Qt-applications font is horrible

What is the proper way to set up fonts in Skype, VLC, and so on?
1
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0answers
10 views

How can I specify a Qmake file during packaging?

I'm trying to package a piece of software that I wrote for Debian/Ubuntu. I've read that dh supports Qmake natively. However, my .pro file is not in the root directory of the source tree, but rather ...
1
vote
0answers
12 views

What is the correct way of using Qt 5.4 in my .deb package?

I want to create a .deb package for an application that I am working on, which depends on Qt >= 5.4 For some supported versions of Ubuntu this version is not available except via packages from a ppa. ...
1
vote
0answers
54 views

Static QT libraries for Ubuntu 14.04

Is there a package which contains all static QT 5 libraries? There are only some static libraries in the qtbase5-dev package (and its dependencies). To be more precise, the static versions of Qt5Test, ...
1
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0answers
76 views

Problem with installing Qt5.3

I am trying to install Qt5.3 into my Ubuntu 14.04(64 bit). While installation process was running suddenly it was showing some prompts and showed several error messages as following: Error during ...
1
vote
0answers
420 views

Could not find or load the Qt platform plugin “xcb”

I am getting this error when I tried to run APK Studio in my Ubuntu 14.10 This application failed to start because it could not find or load the Qt platform plugin "xcb". Available platform plugins ...
1
vote
0answers
189 views

Unable to re-install ubuntu-desktop, or fix the broken packages required to do so

I don't know how, but somewhere along the way the package ubuntu-desktop got uninstalled from my machine. I'm starting to notice little breakages all over my system now- I can't upload photos from ...
1
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0answers
38 views

KDE 4 Strange Problem

A problem with KDE is really driving me crazy, any help would be greatly appreciated. I have a xunbuntu 14.04 on which I installed kde-plasma-desktop. There are very few styles (System settings -> ...
1
vote
0answers
86 views

How to run Qt app compiled&linked with Qt 4.8.4 on a system with integrated Qt 4.8.6

I wrote an application using Qt 4.8.4. Now I purchased a new PC and installed Kubuntu 14.10 based on Qt 4.8.6. To develop my application, I built Qt 4.8.4 from source using make install and that went ...
1
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0answers
406 views

qmake could not exec error while building Qt from source

I'm having an issue building QT from it's sources. I have to build from sources due to a strange requirement (that's how we are going to do it at work, once we start using QT). Building from sources I ...
1
vote
0answers
58 views

Qt-creator publish tab missing click part

I am trying step by step to write some simple tutorial Ubuntu apps using qt-creator. First I've chosen HTML5 App then after writing some hello code or even after doing nothing I've tried to create a ...
1
vote
0answers
129 views

How to configure Qt to access standard icon resources/themes?

I am developing an app using Qt designer and struggling with mechanizing the icon resource themes. Essentially, I'd like to access all of the standard icons when I click choose resource. Where on ...
1
vote
0answers
59 views

Qml HUD integration without MainView?

I'm working on an app with Qt Quick Components, I don't want to use any Ubuntu specific components because I want the desktop version of my app to be more portable than that (Qt 5.2 is enough of a ...
1
vote
0answers
30 views

Use SystemSettings 1.0?

I'm developing a new app that I need to use the SystemSettings module for (I need to get the device serial, IMEI and stuff). When looking for a way to get these numbers I came across Ubuntu System ...
1
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0answers
126 views

Cannot import directory path to qmlscene

I am trying to import directory in QML as explained, here: http://qt-project.org/doc/qt-5.0/qtqml/qtqml-syntax-directoryimports.html. I have the following ubuntu-app | - extras1 | - extras2 | - ...
1
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0answers
42 views

QT 4 update, removing lots of libs

I get a message from Muon update module aksing to update QT 4. Thats fine, but it also want to remove LOTS of libs and programs (incl spotify, ksystemlog, krdc, krfb, kdepim-runtim, userconfig and ...
1
vote
0answers
3k views

Not finding QT4 QWidget after update

Updated from buntu 11.0 to 12.04. I use to have QT4 ver 4.7.4, now I have 4.8.1. My project is failing to build because it can't find #include <QWidget>. A search of the disk tells me there is ...
0
votes
0answers
31 views

“error: cannot find -lGL” in Qt creator 5.5.0 on Ubuntu 14.04 LTS

I am trying to build and run a sample program on Qt creator 5.5.0 and Ubuntu version is 14.04 LTS. Every time its giving an error cannot find -lGL and id returns exit 0. I tried to resolve this ...
0
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0answers
8 views

ddc card with Qt

Does anybody knows about ddc device working in Qt5, which is used in avionics with 1553 communication. I tried to access the DDC(data device corporation)device for 1553 mil-std communication in Qt to ...
0
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0answers
34 views

Could NOT find Qt4: Found unsuitable version “4.8.1” BUT i have version 5 installed?

I'm new to Ubuntu, and trying to run cmake. When I run the command: cmake ../src I get: CMake Error at /usr/local/share/cmake-2.8/Modules/FindPackageHandleStandardArgs.cmake:108 (message): ...
0
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0answers
21 views

How to build Qt from source with not default version of gcc compiler?

P.S. The problem is solved. It has nothing to do with Ubuntu particularly, of course. One needs to manipulate with paths to gcc versions using "update-alternatives" command ...
0
votes
0answers
31 views

Serial port blocked. How can I detect what it is?

I am using Qt (QSerialPort) to handle the port. At startup, I am attempting to open the port every second. It takes in average 12 cycles not to get back an error, which is: ...
0
votes
0answers
14 views

Running QLandkarte GT on 1024x600 resolution

When I start QLandkarte I found that it has no maximize/minimize/close buttons on right window corner and it fits uncomfortable in 1024x600 resolution screen. QLandkarte window don't fill screan width ...
0
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0answers
24 views

How to get and install qt header and libraries in specific folder?

Where do I get qt header and libraries from? And then how do I install qt header and libraries in specific folder?
0
votes
0answers
9 views

Problem compiling with QT4 libraries in pbuilder

I am having trouble getting pbuilder or launchpad to build a package that uses the QT4 libraries. The build script that I am using is below ( I didn't write it ). It compiles fine on a vanilla ...
0
votes
0answers
40 views

Adding qt4 and qt5 to global path

I have downloaded a source code from github. It is using qt and in many files it has the following headers included: #include <QApplication> #include <QApplication> #include ...
0
votes
0answers
11 views

Focus Writer 1.4.4 has an error when I type in Korean

$ focuswriter QGtkStyle was unable to detect the current GTK+ theme. QString::arg: Argument missing: "문단: % L1" , 0 QString::arg: Argument missing: "문단: % L1" , 0 QString::arg: Argument missing: "문단: ...
0
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0answers
184 views

Unity desktop on Raspberry Pi 2

The first thing needed to make it work is a driver. There was a Mesa and DRM driver for Broadcom VC4 developed recently by Eric Anholt. It's an OpenGL driver. http://dri.freedesktop.org/wiki/VC4/ ...
0
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0answers
25 views

Virtual box crashes with undefined symbol

When executing Virtual Box through GUI doesn't pop up anything using terminal it crashed with error: root@mayur-laptop:/home/mayur/Documents/MyOs# virtualbox VirtualBox: ...
0
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0answers
96 views

KDE/QT applications on Xubuntu 15.04 are horrible

All installed KDE/QT applications on Xubuntu 15.04 are horrible (clementine, digikam, etc...). I think the layout miss all kde/qt library. See there http://postimg.org/image/ng087lkkb/ Why? How can ...
0
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0answers
14 views

ubuntu licence for commercial apps

I want to submit a commercial application in ubuntu software center... in publish process there is a part that ask licence file (list of numbers) First, what is the syntax of this file? Second, how ...
0
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0answers
170 views

Installing libgl1-mesa-dev gives unmet dependencies

I am using Ubuntu 14.04 sudo apt-get install libgl1-mesa-dev When I try to run this command I get: The following packages have unmet dependencies: unity-control-center : Depends: libcheese-gtk23 ...
0
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0answers
59 views

How to cross compile the qtmultimedia-opensource-src for armhf?

Repost from https://answers.launchpad.net/ubuntu/+source/qtmultimedia-opensource-src/+question/264619 Cross I can't figure out how to build it with cross compiler (on trusty-amd64 for ...