Qt Creator freezes during document change

  • Hi all,

    I have a problem with Qt Creator.

    I have opened multiple documents and when I change the view to another document, then after 2 seconds the Creator freezes with 100% cpu load for a couple of seconds (at most 10 secs). Thereafter the Creator goes back to normal load.
    Is anybody here with the same problem or experiences?
    I think there might be any tools from the Creator which scan my document for syntax update or whatever.

    I am using Qt 5.2.1 and Creator 3.0.1 with Windows 7 32 Bit. I also have an SSD, and I think that that could be also the reason for the problem.


  • I have experienced of Qt creator freezing many times.
    I guess,This is due to your main thread is busy or you are handling any GUI inside a thread directly.

  • What do you mean? Main thread of creator?
    This is not during runtime or compile time. This effect occurs when I program. The program's not running.

  • Hi Oliver,
    I have the same pb with Creator 3.0.1 / 5.2.1, was working like a charm with older versions... Sudden freeze when typing something, no on-going compilation, not happening with other applications.

    I'm running Win7 64 bits, Corei7 and SSD, don't know what could be wrong.


  • I am having the same problem - Qt Creator freezes during editing, with no apparent processing happening in the background. The freeze generally occurs when changing to a new document, or when issuing a keyboard shortcut to move to a new document. Qt Creator 3.0.1, Qt 5.2.1, MSVC 2010. I have no problems with the same version on my Linux partition. I also am running Win7 x64, Core i7, SSD; I wouldn't know why that would cause trouble. Has anyone else had any luck resolving this very irritating issue?

  • After updating to the standalone 3.1.0 Qt Creator (open source) installer, the freezing problem appears to be resolved.

  • For me the same. No freezing at all after trying Qt Creator 3.1.0 for a couple of days. Thanks for help.

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