Gimp hangs on trying to input upper case character with shift using text tool

[Benedykt 'Silmethule' Jaworski]

When trying to add text to image with Gimp 2.8.14 on Kubuntu 15.04, Gimp hangs if trying to input uppercase M or uppercase A, or other letters (I tried these two at the beginning, other seems to also hang the program). It is invariant to font used. It also hangs when trying to type uppercase character into choose-font field.

gimp --verbose seems to print no relevant information to console

Below output:

% gimp --verbose
INIT: gimp_load_config
Parsing '/home/silmeth/.gimp-2.8/unitrc'
Parsing '/etc/gimp/2.0/gimprc'
Parsing '/home/silmeth/.gimp-2.8/gimprc'
gimp_composite: verbose=no
Processor instruction sets: +mmx +sse +sse2 -3dnow -altivec -vis
Adding theme 'Small' (/usr/share/gimp/2.0/themes/Small)
Adding theme 'Default' (/usr/share/gimp/2.0/themes/Default)
Writing '/home/silmeth/.gimp-2.8/themerc'
Trying splash '/home/silmeth/.gimp-2.8/gimp-splash.png' ... failed
Trying splash '/usr/share/gimp/2.0/images/gimp-splash.png' ... OK
INIT: gimp_initialize
INIT: gimp_real_initialize
INIT: gui_initialize_after_callback
INIT: gimp_restore
Parsing '/home/silmeth/.gimp-2.8/parasiterc'
Loading 'brush factory' data
Loading 'dynamics factory' data
Loading 'pattern factory' data
Loading 'palette factory' data
Loading 'gradient factory' data
Loading fonts
Loading 'tool preset factory' data
Parsing '/home/silmeth/.gimp-2.8/templaterc'
Parsing '/home/silmeth/.gimp-2.8/modulerc'
Loading module '/usr/lib/gimp/2.0/modules/libcontroller-linux-input.so'
Unloading module '/usr/lib/gimp/2.0/modules/libcontroller-linux-input.so'
Loading module '/usr/lib/gimp/2.0/modules/libcontroller-midi.so'
Unloading module '/usr/lib/gimp/2.0/modules/libcontroller-midi.so'
Loading module '/usr/lib/gimp/2.0/modules/libdisplay-filter-lcms.so'
Unloading module '/usr/lib/gimp/2.0/modules/libdisplay-filter-lcms.so'
Loading module '/usr/lib/gimp/2.0/modules/libdisplay-filter-gamma.so'
Unloading module '/usr/lib/gimp/2.0/modules/libdisplay-filter-gamma.so'
Loading module '/usr/lib/gimp/2.0/modules/libcolor-selector-water.so'
Unloading module '/usr/lib/gimp/2.0/modules/libcolor-selector-water.so'
Loading module '/usr/lib/gimp/2.0/modules/libdisplay-filter-high-contrast.so'
Unloading module '/usr/lib/gimp/2.0/modules/libdisplay-filter-high-contrast.so'
Loading module '/usr/lib/gimp/2.0/modules/libdisplay-filter-proof.so'
Unloading module '/usr/lib/gimp/2.0/modules/libdisplay-filter-proof.so'
Loading module '/usr/lib/gimp/2.0/modules/libcolor-selector-cmyk.so'
Unloading module '/usr/lib/gimp/2.0/modules/libcolor-selector-cmyk.so'
Loading module '/usr/lib/gimp/2.0/modules/libcolor-selector-wheel.so'
Unloading module '/usr/lib/gimp/2.0/modules/libcolor-selector-wheel.so'
Loading module '/usr/lib/gimp/2.0/modules/libdisplay-filter-color-blind.so'
Unloading module '/usr/lib/gimp/2.0/modules/libdisplay-filter-color-blind.so'
INIT: gui_restore_callback
clipboard: writable pixbuf format: image/png
clipboard: writable pixbuf format: image/bmp
clipboard: writable pixbuf format: image/x-bmp
clipboard: writable pixbuf format: image/x-MS-bmp
clipboard: writable pixbuf format: image/tiff
clipboard: writable pixbuf format: image/x-icon
clipboard: writable pixbuf format: image/x-ico
clipboard: writable pixbuf format: image/x-win-bitmap
clipboard: writable pixbuf format: image/jpeg

(gimp:2233): Gimp-Widgets-CRITICAL **: gimp_device_info_set_device: assertion '(info->device == NULL && GDK_IS_DEVICE (device)) || (GDK_IS_DEVICE (info->device) && device == NULL)' failed
Parsing '/home/silmeth/.gimp-2.8/sessionrc'
Parsing '/home/silmeth/.gimp-2.8/dockrc'
Parsing '/home/silmeth/.gimp-2.8/toolrc'
Parsing '/home/silmeth/.gimp-2.8/contextrc'
Parsing '/home/silmeth/.gimp-2.8/tool-options/gimp-rect-select-tool'
Parsing '/home/silmeth/.gimp-2.8/tool-options/gimp-ellipse-select-tool'
Parsing '/home/silmeth/.gimp-2.8/tool-options/gimp-free-select-tool'
Parsing '/home/silmeth/.gimp-2.8/tool-options/gimp-fuzzy-select-tool'
Parsing '/home/silmeth/.gimp-2.8/tool-options/gimp-by-color-select-tool'
Parsing '/home/silmeth/.gimp-2.8/tool-options/gimp-iscissors-tool'
Parsing '/home/silmeth/.gimp-2.8/tool-options/gimp-foreground-select-tool'
Parsing '/home/silmeth/.gimp-2.8/tool-options/gimp-vector-tool'
Parsing '/home/silmeth/.gimp-2.8/tool-options/gimp-color-picker-tool'
Parsing '/home/silmeth/.gimp-2.8/tool-options/gimp-zoom-tool'
Parsing '/home/silmeth/.gimp-2.8/tool-options/gimp-measure-tool'
Parsing '/home/silmeth/.gimp-2.8/tool-options/gimp-move-tool'
Parsing '/home/silmeth/.gimp-2.8/tool-options/gimp-align-tool'
Parsing '/home/silmeth/.gimp-2.8/tool-options/gimp-crop-tool'
Parsing '/home/silmeth/.gimp-2.8/tool-options/gimp-rotate-tool'
Parsing '/home/silmeth/.gimp-2.8/tool-options/gimp-scale-tool'
Parsing '/home/silmeth/.gimp-2.8/tool-options/gimp-shear-tool'
Parsing '/home/silmeth/.gimp-2.8/tool-options/gimp-perspective-tool'
Parsing '/home/silmeth/.gimp-2.8/tool-options/gimp-flip-tool'
Parsing '/home/silmeth/.gimp-2.8/tool-options/gimp-cage-tool'
Parsing '/home/silmeth/.gimp-2.8/tool-options/gimp-text-tool'
Parsing '/home/silmeth/.gimp-2.8/tool-options/gimp-bucket-fill-tool'
Parsing '/home/silmeth/.gimp-2.8/tool-options/gimp-blend-tool'
Parsing '/home/silmeth/.gimp-2.8/tool-options/gimp-pencil-tool'
Parsing '/home/silmeth/.gimp-2.8/tool-options/gimp-paintbrush-tool'
Parsing '/home/silmeth/.gimp-2.8/tool-options/gimp-eraser-tool'
Parsing '/home/silmeth/.gimp-2.8/tool-options/gimp-airbrush-tool'
Parsing '/home/silmeth/.gimp-2.8/tool-options/gimp-ink-tool'
Parsing '/home/silmeth/.gimp-2.8/tool-options/gimp-clone-tool'
Parsing '/home/silmeth/.gimp-2.8/tool-options/gimp-heal-tool'
Parsing '/home/silmeth/.gimp-2.8/tool-options/gimp-perspective-clone-tool'
Parsing '/home/silmeth/.gimp-2.8/tool-options/gimp-convolve-tool'
Parsing '/home/silmeth/.gimp-2.8/tool-options/gimp-smudge-tool'
Parsing '/home/silmeth/.gimp-2.8/tool-options/gimp-dodge-burn-tool'
Parsing '/home/silmeth/.gimp-2.8/tool-options/gimp-desaturate-tool'
Parsing '/home/silmeth/.gimp-2.8/tool-options/gimp-color-balance-tool'
Parsing '/home/silmeth/.gimp-2.8/tool-options/gimp-hue-saturation-tool'
Parsing '/home/silmeth/.gimp-2.8/tool-options/gimp-colorize-tool'
Parsing '/home/silmeth/.gimp-2.8/tool-options/gimp-brightness-contrast-tool'
Parsing '/home/silmeth/.gimp-2.8/tool-options/gimp-threshold-tool'
Parsing '/home/silmeth/.gimp-2.8/tool-options/gimp-levels-tool'
Parsing '/home/silmeth/.gimp-2.8/tool-options/gimp-curves-tool'
Parsing '/home/silmeth/.gimp-2.8/tool-options/gimp-posterize-tool'
Parsing '/home/silmeth/.gimp-2.8/tool-options/gimp-gegl-tool'
INIT: gimp_real_restore
Parsing '/home/silmeth/.gimp-2.8/pluginrc'
Starting extension: 'extension-script-fu'
INIT: gui_restore_after_callback
Parsing '/home/silmeth/.gimp-2.8/menurc'
Parsing '/home/silmeth/.gimp-2.8/devicerc'
Parsing '/home/silmeth/.gimp-2.8/controllerrc'
Parsing '/home/silmeth/.gimp-2.8/colorrc'
loading menu '/usr/share/gimp/2.0/menus/image-menu.xml' for /image-menubar
Loading module '/usr/lib/gimp/2.0/modules/libdisplay-filter-lcms.so'

(gimp:2233): Gdk-WARNING **: /build/buildd/gtk+2.0-2.24.27/gdk/x11/gdkdrawable-x11.c:942 drawable is not a native X11 window

(gimp:2233): Gdk-WARNING **: /build/buildd/gtk+2.0-2.24.27/gdk/x11/gdkdrawable-x11.c:942 drawable is not a native X11 window

(gimp:2233): Gdk-WARNING **: /build/buildd/gtk+2.0-2.24.27/gdk/x11/gdkdrawable-x11.c:942 drawable is not a native X11 window

(gimp:2233): Gdk-WARNING **: /build/buildd/gtk+2.0-2.24.27/gdk/x11/gdkdrawable-x11.c:942 drawable is not a native X11 window
^C/usr/lib/gimp/2.0/plug-ins/script-fu terminated: Przerwanie
gimp: terminated: Przerwanie

ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: gimp 2.8.14-1ubuntu1
ProcVersionSignature: Ubuntu 3.19.0-23.24-generic 3.19.8-ckt2
Uname: Linux 3.19.0-23-generic x86_64
ApportVersion: 2.17.2-0ubuntu1.2
Architecture: amd64
CurrentDesktop: KDE
Date: Wed Aug 5 13:29:47 2015
SourcePackage: gimp
UpgradeStatus: No upgrade log present (probably fresh install)