Blinking of pop-up widgets on Raspberry OS

[IknowQT]

@jsulm

I got a hint from what you said, so I made the screen a little smaller instead of full screen.

problem2.gif

Is it because the Standard Curve widget behind is not in Modal shape?

[jsulm]

@IknowQT said in Blinking of pop-up widgets on Raspberry OS:

Is it because the Standard Curve widget behind is not in Modal shape?

What do you mean?
A dialog is either modal or not.

[IknowQT]

@jsulm

So, is there any way to solve this problem?
i want to do full screen

[jsulm]

@IknowQT Do you use a window manager?

[IknowQT]

@jsulm

no it doesn't matter
Do I need to change the settings on Raspberry OS?

[jsulm]

@IknowQT said in Blinking of pop-up widgets on Raspberry OS:

no it doesn't matter

What does this mean? Yes or no?

[IknowQT]

@jsulm

No no

[IknowQT]

@jsulm

I tried removing the taskbar of Raspbian and running it, and the same symptoms appear.
Is there any other way?

[IknowQT]

@jsulm

Is there no way in qt?
I tested the same in Ubuntu OS, but the same phenomenon as in Raspbian does not appear.
For me this is a very important issue.
You may need to change your development direction and environment.

[jsulm]

@IknowQT What graphics environment and window managher do you use?
Do you use X server?

[IknowQT]

@jsulm

How can I check?
I'm not very good with Linux commands.

[jsulm]

@IknowQT You should know what you installed.
What does

ps ax | grep X

output?

[IknowQT]

@jsulm

 539 tty7     Ssl+   0:00 /usr/lib/xorg/Xorg :0 -seat seat0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
  618 ?        Ssl    0:00 /usr/bin/lxsession -s LXDE-pi -e LXDE
  845 ?        Sl     0:02 lxpanel --profile LXDE-pi
  846 ?        Sl     0:00 pcmanfm --desktop --profile LXDE-pi
 4762 pts/0    S+     0:00 grep --color=auto X

[jsulm]

@IknowQT So, you have X server running and you're using LXDE desktop environment.
You could try with some other desktop environment to see whether it behaves in the same way (XFCE for example).

[IknowQT]

@jsulm

Are you saying you need to test on a different version of the OS?

[jsulm]

@IknowQT No. I did not say anything about a different OS version. I only suggested to test with another desktop environment (window manager). On Linux there are many different desktop environments...

[IknowQT]

@jsulm

Even after changing the window manager to openbox, the flickering phenomenon appears.

*raspberry board version
pi4 model b
*raspberry os version
buster 5.10.75-v71+

Are there any window managers you can recommend for my development environment?