[Interest] Run Qt Widget program with minimal Xorg installation on Linux

[ruslan]

In my case I installed VNC server just for control purposes. In
standalone mode the Qt program should work on remote server without VNC,
just with Xorg server.

I have same OS (Debian 7) om my works machine with same Xorg server and
same Qt version. And there everything works well of course. So I can't
understand what I miss on my VPS in comparisson with my works machine.
Ok, I use there KDE as WM and on VPS it's Blackbox.


09.01.2015 19:40, René J.V. Bertin ???????:
> On Friday January 09 2015 16:36:54 ruslan wrote:
>> It was addressbook from Qt Examples.
>> Now I've tried default template "Qt Widget application" from QtCreator
>> without any changes.
>> The error only 2 lines:
>>
>> QWidget::paintEngine: Should no longer be called
>> QPainter::begin: Paint device returned engine == 0, type: 1
> I've seen this kind of error with Qt 5.3.2 displaying on a remote X11 server that apparently didn't support all the required modes. But that should be irrelevant to you because you use VNC and not X11's remote displaying protocol.
>
>> In BlackBox I see a window or rather window frame without content. It
>> looks like window content is transparent and copies desktop image when I
>> move the window.
>> The window size and title are right.
> That's something I'm used to seeing when I launch a Qt5 application locally, during the time it takes for everything to be started (slow machine ... claims that Qt5 allows so much snappier and less resource-heavy rendering are apparently not true across the board).
> It probably just means your window manager and server are doing their job: they show the window decorations and cache the contents behind the window to avoid having to ask the owner to redraw when re-exposed. It also means your application isn't doing any displaying at all.
>
> Could this be due to x11vnc and/or the VNC client you are using?
>
> R.
>


-- 
-------------------------------
/Best regards,
Ruslan/
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.qt-project.org/pipermail/interest/attachments/20150109/1f334e7b/attachment.html>