Run example qt but nothing display on screen

longhoangdev

Hello everyone,

I have installed new window 10 and afterthat I have installed qt creator.
Firstly, I try to run qmlvideofx but nothing to display although no error, no warning.Image is below
.
Secondly, I continously try to run other example and run success ( example heartrate-game image below)

And finally, I have write simple new project but nothing is also displayed on screen image below

So I don't understand what is this problem ?.Could everybody help me fix this problem?

Thank you

longhoangdev

@mrjj
Thank you very much ,
I have just installed new driver gpu and try to my project. Exactly, the problem releates to openGL, my project is worked normally

mrjj

Hi
Could be the openGl.
QML needs working accelerated graphics.

Did you install openGl / newest drivers for your gfx card ?

longhoangdev

@mrjj thank you
maybe i need to install driver for gpu. Currently, I am using nvidia quandro 2000m

mrjj

Hi
well it should have openGL 4.6
so yes, try go to nvidia site and find the driver.
(or from laptop vendor)

I used
https://www.nvidia.com/Download/driverResults.aspx/160350/en-us
for a Dell laptop and it worked but i cant promise it will on your system :)

longhoangdev

@mrjj
Thank you very much ,
I have just installed new driver gpu and try to my project. Exactly, the problem releates to openGL, my project is worked normally

KH-219Design

Kudos! Clearly this was resolved and with the ideal method.

I just want to give a "shout out" to the excellent VirtualGL project. It has allowed me to run QML programs in instances where they otherwise would not. (On Linux, often in conjunction with Xephyr.)

vglrun /path/to/your_binary_name

The screenshots on this thread indicate Microsoft Windows. Apparently VirtualGL has a Cygwin exe release now. Just pointing this out in case others are struggling with OpenGL. (I have not tried VirtuaGL on Windows. But I love it on Linux.)