Questions about the GTK+ graphical user interface toolkit. The Gnome desktop uses GTK+.

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2
votes
2answers
73 views

What is the default GTK 3 Theme Engine in Ubuntu Unity?

I was trying to install ubuntu-desktop package in Ubuntu-Gnome(gnome shell). Using unity-tweak I set theme as Ambiance. But only gtk2 applications are looking good. All gtk3 application has ugly ...
0
votes
1answer
18 views

How to receive/read raw file sent using Gtkterm thru serial?

I've downloaded Gtkterm in 2 desktop systems each with a RS-232 serial port. I'm attempting to transfer a simple .txt file between the 2 systems thru one of the available serial ports. The 2 systems ...
0
votes
0answers
17 views

CSD broken in Unity

Its awesome that Unity is slowly making strides in making CSD apps functional and less ugly in unity. but i was wondering , is there a way to fix it in 15.04 for the default theme?
0
votes
1answer
32 views

Permission denied when attempting to open ttyS# in GtkTerm

I'm trying to open a serial port in GtkTerm (downloaded from Ubuntu Software Center), however I'm getting "Cannot open /dev/ttyS0: Permission denied" error. Ubuntu Version: 14.04
0
votes
0answers
14 views

GTK3 checkbox background

I got a GTK theme (Paper), but the checkboxes and radio buttons don't look like they are supposed to - there's just no background. The theme uses background-color and background-image, but those ...
0
votes
1answer
94 views

How to fix Numix theme on Ubuntu 14.04

I'm using the Numix-bluish-3.16 theme on Ubuntu 14.04. However, the visual experience is not very consistent. Some examples: Is it an incompatibility issue with my GTK version?
1
vote
0answers
33 views

What are the advantages of using GTK3 and GTK+3 over GTK-2?

I'm creating a utility program for Ubuntu in Python using GTK-2 and have been told by several people to use GTK3. Why would I want to do so, and would are the advantages of using it instead of GTK-2? ...
1
vote
0answers
60 views

Gtkterm: Control signals read: Input/output error

I am an Ubuntu newbie and I just installed GtkTerm. I get this error message as soon as I open GtkTerm via the Terminal: Control signals read: Input/output error It would be great if someone could ...
1
vote
1answer
43 views

Python NameError: gloabal name 'resolution' is not defined

I'm working on developing a python application for Ubuntu that enables a user to have their desired resolution without requiring graphics drivers. In order to do this I've been using xrandr. However ...
0
votes
0answers
232 views

How to upgrade GTK 3.10 to GTK 3.14 on Ubuntu 14.04?

How to upgrade GTK 3.10 to 3.14 on ubuntu 14.04? Most of the discussions provide an answer in which they replace the Unity desktop with the GNOME desktop. I want to do this upgrade without adding any ...
0
votes
0answers
21 views

KDE gtk theme problem

I have just installed KDE 4.14.2. My problem is that nemo and synaptic file manager look horrible: I tried to install kde-config-gtk-style and tweak the GTK2 - GTK3 themes like this: but, after ...
0
votes
0answers
77 views

pkg-config not updating installed libs

I am trying to install GTK+-3.16 and I have installed all the dependencies but when I finally try to configure GTK, it gives the following errors: configure: error: Package requirements (glib-2.0 ...
0
votes
0answers
41 views

Create my own panel plugin - Xubuntu

I've installed Xubuntu 14.04. In my panel I can add a lot of plugins. For example that show CPU load and RAM usage... But what about the temperature of each core? I've found the files that contains ...
0
votes
0answers
30 views

.desktop-file two part exec line

I am trying to get bleachbit to run. Unfortunately I get the error, that it could not import gtk. It seems that this is due to me having python 2 & 3 installed. Starting bleachbit over the console ...
0
votes
0answers
29 views

Glade-3.18.3 crash

I have installed Glade-3.18.3 on my Ubuntu 14.04. But when I'm try to open it it shows the following message and the gladeUI window just flashed. Please help me fix the problem. I already have ...
1
vote
0answers
19 views

Icon size inside an application is too large

Whenever I uses a software that uses gtk as Its source for its viewscreen, the icons on buttoms and some are about the twice the size of icon on my unity launcher I'm using a Ununtu 15.04 with ...
0
votes
1answer
40 views

How can I disable “selection by clicking ” on GTK treeview [closed]

I have this code where I get a treeview and a sign when I click or move the up / down over the lines. For my application I need to disable the selection when the user clicks on a row, further I wonder ...
3
votes
0answers
89 views

Corrupted Fonts

I just installed 14.04.2 and certain glyphs are corrupted in Firefox. It only happens at certain zoom levels. If I use Ctrl-mouse-wheel to zoom the page I can make the corruption appear and ...
1
vote
2answers
644 views

Google Chrome won't Start - Unable to locate theme engine in module_path: “adwaita”

Google Chrome won't start after a recent apt-get upgrade. I can't figure out what I'm missing, and google doesn't turn up many results for these errors: $ google-chrome ...
0
votes
1answer
51 views

Ubuntu & XFCE - Guake transparency

I have Guake installed on Ubuntu with XFCE, problem with transparency. Instead windows below I see desktop wallpaper, what I can do with this problem?
4
votes
1answer
171 views

Remove black line from (15.04 - Vivid) Files/Nautilus sidebar

Is there a way to remove the black line from the sidebar of the latest Ubuntu? It sticks out and always causes me to lose focus when I'm working, because it stands out way too much compared to the ...
1
vote
1answer
56 views

Link button to application in Glade

I'm new to Glade and I just love the possibilities this program has for (beginner) GUI developers. I started making an application with some text and buttons and I would like to assign a button to ...
0
votes
0answers
42 views

Inkscape keeps crashing when typing text

I'm using Lubuntu 15.04 and I tried using Inkscape and it seems to be crashing when I try to edit text. After typing about ten characters, the program crashes. I found a way around the issue here in ...
2
votes
1answer
48 views

Get rid of white highlight in Dolphin with mouse over

Hello I'm trying to get rid of the white highlight in Dolphin that happens when you go over something with your mouse. I tried editing sudo gedit /usr/share/themes/Ambiance/gtk-2.0/gtkrc, but can't ...
0
votes
1answer
26 views

How can I use --gdk-debug with GTK2 programs?

I want to view the GDK events received by a GTK 2 program (Xournal) for debugging purposes, which should be possible by passing the option --gdk-debug=events). However, the option apparently is passed ...
1
vote
1answer
2k views

gksu: Gtk-WARNING **: cannot open display: :0

All of the sudden gksu stopped working for me: ~$ gksu gparted (gpartedbin:24252): Gtk-WARNING **: cannot open display: :0 The same happens with gparted-pkexec: ~$ gparted-pkexec No protocol ...
0
votes
0answers
48 views

Error while running synaptic

I installed synaptic package but I am not able to run "synaptic" command. While running the command, I am getting the following error:- (process:1231): Gtk-WARNING **: Locale not supported by C ...
10
votes
1answer
831 views

After 15.04 update: Aliased/choppy icons

Just updated to 15.04, and my icons are all aliased/choppy looking now. I tried purging and reinstalling my icon themes, and I keep seeing this warning: gtk-update-icon-cache: The generated cache ...
0
votes
2answers
130 views

Gtk-Message: Failed to load module “gtk-vector-screenshot” - Xubuntu 14.04

Above message appears when starting any GTK app from terminal after (supposedly) uninstalling gtk-vector-screenshot 0.3.2.1-1ubuntu1 via Software Center. (didn't support as many apps as I'd hoped, or ...
2
votes
1answer
62 views

How to use GTK/GNOME notifications services in Java?

I've started learning Java and to have some project to actually put knowledge to the practice, I decided to make a custom notifications service. I know that Java is not the best option, but that's ...
0
votes
1answer
256 views

Missing characters after update ubuntu 14.04

today i have installed on my new Lenovo L450 ubunut 14.04, everything was fine.. after update i rebooted the PC and characters are missing in GTK apps (netbeans, unity is ok, anything else is wrong) ...
1
vote
0answers
90 views

How to get true, correct font rendering on Ubuntu 14.04+

Font rendering has always been a huge problem on Ubuntu. I am hoping someone has a real solution to this problem. I have a laptop with a 17" (382x215 mm) display running at 1920x1080, approximately ...
0
votes
1answer
31 views

Does 'g_thread_join' delete 'gpointer data'?

From the reference manual: "g_thread_join() consumes the reference to the passed-in thread . This will usually cause the GThread struct and associated resources to be freed." Does 'g_thread_join' ...
0
votes
0answers
60 views

How to find GTK+ version used by a given application

This answer http://askubuntu.com/a/192138/112794 to the post How to change color AND width of non overlay scrollbars in Ubuntu 12.04 says that on a single machine we can install two versions of gkt+. ...
0
votes
0answers
57 views

Dropbox GTK issue

Experiencing GTK issue with latest dropbox on ubuntu 12.04 : in terminal it says : `Gtk-CRITICAL **: IA__gtk_widget_get_direction: assertion `GTK_IS_WIDGET (widget)' failed ` And then exits. ...
-1
votes
1answer
93 views

boot repair in terminal

(glade2script:7962): Gtk-CRITICAL **: _gtk_style_cascade_get_for_screen: assertion 'GDK_IS_SCREEN (screen)' failed (glade2script:7962): Gtk-CRITICAL **: _gtk_style_provider_private_lookup: assertion ...
0
votes
0answers
16 views

my gtk seem not working on some software

I have got a problem recently after i install a new version of glib from GTK site on my ubuntu 14.04. After the installation, my gtk doesn't seem work on some softwares like firefox, chrome, libre ...
-1
votes
1answer
98 views

network icon disappeared in gnome-panel

Today I dragged a photo to the gnome-panel.Then the panel background changed,but after a reboot i got an error saying "reload gnome-panel". I reloaded, but it asked 10 times. After that my network ...
0
votes
0answers
145 views

GTK+ theming issue during forwarded X11 session over SSH

I'm having a very odd theming issue during forwarded X11 session over SSH. My remote host is an ARM router with some GTK+ packages ported using Optware. While X11 forwarding works in general, I get a ...
0
votes
0answers
108 views

Ubuntu 14.04 Context Menus Missing Icons

I am running Ubuntu 14.04 LTS, and I've noticied that context menus, as well as menus from the top bar, do not have any icons. I use Eclipse frequently and I know there icons associated with some of ...
0
votes
0answers
103 views

ubuntu 14.04.02 LTS Gtk warning

after screen freeze at sign on yesterday, I attempted fix thru Terminal commands (apparently I am way too much of a noob) currently in terminal I am unable to use gedit (confirmed newest version is ...
0
votes
0answers
18 views

Why are prelight areas in menus of Gtk theme coloring incorrectly?

I'm using a custom theme and since upgrading from Saucy to Utopic the prelight areas in the Menubar Menuitems and Menu items of dropdown menus are coloring incorrectly. The selected_bg_color is only ...
0
votes
1answer
151 views

can i uninstall ubuntu 14.04 unity desktop environment and replace it with paper-gtk

I'm a Linux newbie... the first Linux OS I started using is Ubuntu 14.04.02 LTS and to be honest, I really don't like the Unity desktop environment that ships with Ubuntu so I was wondering if I could ...
1
vote
0answers
35 views

rhythmbox button icon names?

The shuffle and loop/repeat button icons in rhythmbox don't match my gtk icon theme. I would assume that's because my theme is missing files named appropriately in order to theme those icons. Is ...
0
votes
1answer
38 views

Does Spyder work with Python GTK in Ubuntu?

Does Spyder work with Python GTK in Ubuntu? Or is Spyder Qt only?
0
votes
0answers
93 views

How to generate config files from gnome-settings-daemon?

I'm trying to convert from Gnome to just using i3-wm, but am having a problem with converting most of my settings which include, but are not limited to: Theming - fixing Ugly "default"-looking ...
0
votes
0answers
84 views

Weird Gnome 3.14 look on Ubuntu 14.10

So I've just updated to Ubuntu 14.10 and Gnome 3.14, but I get theese looks everywhere, black backgrounds where they should be gray. This happens on white theme too. You see this blue where it was ...
2
votes
0answers
69 views

How to write a policykit/polkit permission file to programmatically have access to a file in /usr/share

I'm writing an application that needs to read and write an existing file in /usr/share... If I understood well I need to use Polkit/PolicyKit to ask the system for a permission and ask the user to do ...
0
votes
0answers
25 views

Thunderbird dialogs painted strangely in (some) 14.04?

One image is worth a thousand words: It happens on some dialog and not others, mainly in Thunderbird and Firefox. I do vaguely remember something like that, and was a gtk-theme problem or ...
1
vote
2answers
1k views

Python 2.7 ImportError: No module named repository

I'm completely clueless. I uninstalled, and re installed gi and python2.7. Do you guys have any ideas? ~ > /usr/bin/python Python 2.7.6 (default, Mar 22 2014, 22:59:56) [GCC 4.8.2] on linux2 Type ...