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Qt/Discussion/Qt General/QQnxScreen:failed to query screen mode. Using default value of 60Hz/List of Posts
Forum Topic - QQnxScreen:failed to query screen mode. Using default value of 60Hz: (7 Items)
   
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Li Chunmei(deleted)
04/06/2017 11:19 PM
post117612
QQnxScreen:failed to query screen mode. Using default value of 60Hz   
Hi, all:
Due to the demand of the 3D,I compiling Qt5.6.2 under QNX6.6;
when i use Qt3D.Core or Qt3D.Render, run application in VM return error log:
QQnxScreen:failed to query screen mode. Using default value of 60Hz
and SceneLoader Component used in my application Status=Error;
What reason is this?
QNX6.6 does not support  Such as the Qt3D.Core module development?
Who can give me some help.
Thanks.
James McDonnell
04/07/2017 9:04 AM
post117615
Re: QQnxScreen:failed to query screen mode. Using default value of 60Hz   
The message isn't reporting a problem that would affect Qt3D functionality.

What are you running this on?
Li Chunmei(deleted)
04/08/2017 11:24 AM
post117620
Re: QQnxScreen:failed to query screen mode. Using default value of 60Hz   
Hi：
I am running a QML demo with Qt5.6.2, and have 3D.Core component in demo, I know the basic problem is that 3D run failed
, but i do not know the reason.
can i use QT5.6.2 under QNX6.6 correctly? if not, what are the limits(3D part is the key point)?
James McDonnell
04/11/2017 9:29 AM
post117632
Re: QQnxScreen:failed to query screen mode. Using default value of 60Hz   
I've run Qt3D applications (the planets example) on 6.6.0 but it's been a while since I did this.

I've used Qt 5.6.2 on 6.6.0 but I haven't used Qt3D 5.6.2 on 6.6.0.

Are you trying this in the virtual machine or an actual device?  What kind of device?
Li Chunmei(deleted)
04/12/2017 3:30 AM
post117634
Re: QQnxScreen:failed to query screen mode. Using default value of 60Hz   
My QNX6.6 currently run in Win 7 VM, but this is for debugging, my real work device is embedded ARMV7, and  run Qt3D 
failed,
Maybe I should stick with QT5.3, but change the thinking development of 3D.
I am trying to now, do you have any good Suggestions can give me
James McDonnell
04/12/2017 8:20 AM
post117637
Re: QQnxScreen:failed to query screen mode. Using default value of 60Hz   
The Qt planets example works with Qt Enterprise 5.6.2 on an OMAP5 board (TI-5432) with the Apps and Media 1.1 image.  
Any other example that I try produces "QOpenGLShader::link: "Link Error: Vertex shader is missing.\nLink Error: Fragment
 shader is missing.\n""  I'm guessing Qt does something that the QNX OpenGL implementation doesn't like :-(.
Li Chunmei(deleted)
04/12/2017 9:01 PM
post117642
Re: QQnxScreen:failed to query screen mode. Using default value of 60Hz   
Hi：
You're right, so now I return to QT5.3, use native opengles2 development 3D, but I don't know how to combinate it and 
QML window together

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