qt4.8.7 Embedded application development,When the mouse quickly scrolls, there is an abnormal mouse click event

-Nn-

My development environment is qt4.8.7 + imx6ull.

When the mouse quickly scrolls over the qtablewidget, an abnormal mouse click event occurs. And the mouse pointer will deviate to the lower left corner of the screen at the moment of abnormality.

This may be a bug in qt4.8d embedded system. Is there any way to solve this problem? Thank you!

SGaist

Hi and welcome to devnet,

You do not give enough details about your setup.

Which Linux distribution are you using ?
What input device are you using ?
What input backend are you using ?

-Nn-

@SGaist said in qt4.8.7 Embedded application development,When the mouse quickly scrolls, there is an abnormal mouse click event:

input backend

thank you
I'm using the embedded version of Ubuntu 12.04,
The input device is a USB mouse
And,I'm not sure what input backend is.

SGaist

@Nn said in qt4.8.7 Embedded application development,When the mouse quickly scrolls, there is an abnormal mouse click event:

And,I'm not sure what input backend is.

Then you should check.
Also are you using X.org ?

-Nn-

@SGaist said in qt4.8.7 Embedded application development,When the mouse quickly scrolls, there is an abnormal mouse click event:

input backend

Not using X.org,
Can you give me some examples of "input backend"
thank you!

SGaist

It's explained here.

-Nn-

My question is a little like the one below，But I still don't know how to fix it.
https://bugreports.qt.io/browse/QTBUG-20831?jql=text ~ "qmousepc_qws"

thank you!

SGaist

Did you try to use the patch provided in the report ?