Qt creator window closes whenever screen is switched off and on [Solved]
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Hi All,
I am using QtCreator 3.0.1 and whenever I switch the monitor off and turn it back on the QtCreator window just hides itself, I can see that process is running in the background but I can't bring back the window. I tried to launch it from command line and I see errors similar to this one:
QXcbConnection: XCB error: 3 (BadWindow)My setup:
OpenSuse 13.1 KDE 4.11.25
QtCreator 3.0.1
Qt versions: 4.8 and 5.2
GCC: 4.8.1
Monitor: LG 27EA63 over HDMI.List of all the errors is something like this:
"Qt Warning - invalid keysym: dead_actute"
QXcbConnection: XCB error: 3 (BadWindow), sequence: 677, resource id: 0, major code: 15 (QueryTree), minor code: 0
QXcbConnection: XCB error: 3 (BadWindow), sequence: 3285, resource id: 0, major code: 15 (QueryTree), minor code: 0
QXcbConnection: XCB error: 3 (BadWindow), sequence: 680, resource id: -1, major code: 1 (CreateWindow), minor code: 0
QXcbConnection: XCB error: 3 (BadWindow), sequence: 681, resource id: 41943077, major code: 2 (ChangeWindowAttributes), minor code: 0
QXcbConnection: XCB error: 3 (BadWindow), sequence: 682, resource id: 41943077, major code: 19 (DeleteProperty), minor code: 0
QXcbConnection: XCB error: 3 (BadWindow), sequence: 683, resource id: 41943077, major code: 24 (ConvertSelection), minor code: 0
QXcbConnection: XCB error: 3 (BadWindow), sequence: 786, resource id: 41943077, major code: 19 (DeleteProperty), minor code: 0
QXcbConnection: XCB error: 3 (BadWindow), sequence: 787, resource id: 41943077, major code: 24 (ConvertSelection), minor code: 0
QXcbConnection: XCB error: 3 (BadWindow), sequence: 891, resource id: 41943077, major code: 19 (DeleteProperty), minor code: 0
QXcbConnection: XCB error: 3 (BadWindow), sequence: 892, resource id: 41943077, major code: 24 (ConvertSelection), minor code: 0
QXcbConnection: XCB error: 3 (BadWindow), sequence: 995, resource id: 41943077, major code: 19 (DeleteProperty), minor code: 0
QXcbConnection: XCB error: 3 (BadWindow), sequence: 996, resource id: 41943077, major code: 24 (ConvertSelection), minor code: 0Appreciate any help in this regard.
Thank you
[Edit] OpenSuse version is corrected 13.1.
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Hi varunamachi,
First of all, welcome to te DevNet forums.
I'm not on OpenSuse myself, but after a search i found "this thread":http://qt-project.org/forums/viewthread/20951
There is no solution there but it says it could be a problem with the X window system.
Do you get this behaviour also when you use other programs?
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Hi Eddy,
Thank you very much for the fast reply.
You might be right I was using same version of QtCreator on same setup some days back and seemed work properly. May be some update broke some functionality.
But I think there could be a issue with Qt's X11 back-end also because there is a "bug":https://bugreports.qt-project.org/browse/QTBUG-31410?page=com.atlassian.streams.streams-jira-plugin:activity-stream-issue-tab reported on Qt Linguist related to similar issue.
In any case I will post same question on OpenSuse forums and if get any solution there I will post it here and mark this thread as solved.
Thank you
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Did you get Qt from the OpenSuse repositories? A workaround might be to use one from "the Qt download page":http://qt-project.org/downloads
Could you test if that works? then you know it has something to do with the OpenSuse packages.
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Actually I am using the .bin files downloaded from the Qt-Project. OpenSuse repositories doesn't seem to have the latest versions.
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There is bug for this issue on Qt 5: "https://bugreports.qt-project.org/browse/QTBUG-40168":https://bugreports.qt-project.org/browse/QTBUG-40168 . As I have commented on the issue, I solved it by using a DVI connection instead of using HDMI connection.
Thanks for the support.
Regards,
Varun
