qtcreator crashes on startup

[Javier]

Starting qtcreator from a terminal result in qtcreator's GUI not showing and the output in the console is:

javi@carbono:~$ qtcreator
Fontconfig warning: "/etc/fonts/conf.d/50-user.conf", line 14: reading configurations from ~/.fonts.conf is deprecated.
Segmentation fault (core dumped)
javi@carbono:~$

Since the output while doing the bug report using apport-bug was:

javi@carbono:~$ apport-bug qtcreator
Fontconfig warning: "/etc/fonts/conf.d/50-user.conf", line 14: reading configurations from ~/.fonts.conf is deprecated.

(process:30848): GLib-CRITICAL **: g_slice_set_config: assertion 'sys_page_size == 0' failed

It's likely that the information in the auto-loaded refer only to the deprecated use of the fonts, rather than to the crash. The GLib critical from the apport-bug command is likely to be a bug already reported in firefox.

The problem migth have to do something with dependencies, since code::blocks also crashes on startup.

ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: qtcreator 2.7.0-0ubuntu3
ProcVersionSignature: Ubuntu 3.9.0-4.9-generic 3.9.4
Uname: Linux 3.9.0-4-generic x86_64
ApportVersion: 2.10.2-0ubuntu1
Architecture: amd64
Date: Fri Jun 7 23:47:54 2013
EcryptfsInUse: Yes
InstallationDate: Installed on 2012-09-22 (258 days ago)
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
MarkForUpload: True
SourcePackage: qtcreator
UpgradeStatus: Upgraded to saucy on 2013-05-09 (29 days ago)

[Javier (javiersmail)]

Well after an update today it starts correctly again. I really have no idea what the problem was but if i had to guess i would point out to Amd graphics drivers (or the lack of them for the current kernel) because there were updated and problems have solved. Other software with a had problems were VLC (coun't play videos but audios were ok), codeblocks and the firefox OS simulator.

[Răzvan-Cosmin Rădulescu (razvancosmin-radulescu)]

Except my QtCreator is 2.8, on Ubuntu 13.10. I was reading about that this is got to do with some video drivers, but mine is on a laptop with nvidia optimus. I'm not sure it's about this though...