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Blinking of pop-up widgets on Raspberry OS

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  • jsulmJ jsulm

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

    The problem is that when I click on another control, the popup widget flickers

    Do you mean on other widget (other window than the dialog)?
    If so then this is normal behaviour of the window manager used. You have same on Windows for example.

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    IknowQT
    wrote on last edited by
    #3

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

    Do you mean on other widget (other window than the dialog)?
    If so then this is normal behaviour of the window manager used. You have same on Windows for example.

    It is a widget popped up on the qt widget and it is clicked outside the popup widget area.
    On Windows, this doesn't happen.

    problem gif

    Can you check the gif attached to the link?

    jsulmJ 1 Reply Last reply
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    • I IknowQT

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

      Do you mean on other widget (other window than the dialog)?
      If so then this is normal behaviour of the window manager used. You have same on Windows for example.

      It is a widget popped up on the qt widget and it is clicked outside the popup widget area.
      On Windows, this doesn't happen.

      problem gif

      Can you check the gif attached to the link?

      jsulmJ Offline
      jsulmJ Offline
      jsulm
      Lifetime Qt Champion
      wrote on last edited by
      #4

      @IknowQT I think this is the behaviour of your window manager, not Qt.
      Can you test with other, non-Qt application, with a modal dialog?

      https://forum.qt.io/topic/113070/qt-code-of-conduct

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      • jsulmJ jsulm

        @IknowQT I think this is the behaviour of your window manager, not Qt.
        Can you test with other, non-Qt application, with a modal dialog?

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        IknowQT
        wrote on last edited by
        #5

        @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?

        jsulmJ 1 Reply Last reply
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        • I 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?

          jsulmJ Offline
          jsulmJ Offline
          jsulm
          Lifetime Qt Champion
          wrote on last edited by
          #6

          @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.

          https://forum.qt.io/topic/113070/qt-code-of-conduct

          I 1 Reply Last reply
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          • jsulmJ 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.

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            IknowQT
            wrote on last edited by
            #7

            @jsulm

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

            jsulmJ 1 Reply Last reply
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            • I IknowQT

              @jsulm

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

              jsulmJ Offline
              jsulmJ Offline
              jsulm
              Lifetime Qt Champion
              wrote on last edited by
              #8

              @IknowQT Do you use a window manager?

              https://forum.qt.io/topic/113070/qt-code-of-conduct

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              • jsulmJ jsulm

                @IknowQT Do you use a window manager?

                I Offline
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                IknowQT
                wrote on last edited by
                #9

                @jsulm

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

                jsulmJ 1 Reply Last reply
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                • I IknowQT

                  @jsulm

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

                  jsulmJ Offline
                  jsulmJ Offline
                  jsulm
                  Lifetime Qt Champion
                  wrote on last edited by
                  #10

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

                  no it doesn't matter

                  What does this mean? Yes or no?

                  https://forum.qt.io/topic/113070/qt-code-of-conduct

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                  • jsulmJ jsulm

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

                    no it doesn't matter

                    What does this mean? Yes or no?

                    I Offline
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                    IknowQT
                    wrote on last edited by
                    #11

                    @jsulm

                    No no

                    1 Reply Last reply
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                    • jsulmJ jsulm

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

                      no it doesn't matter

                      What does this mean? Yes or no?

                      I Offline
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                      IknowQT
                      wrote on last edited by
                      #12

                      @jsulm

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

                      1 Reply Last reply
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                      • jsulmJ jsulm

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

                        no it doesn't matter

                        What does this mean? Yes or no?

                        I Offline
                        I Offline
                        IknowQT
                        wrote on last edited by
                        #13

                        @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.

                        jsulmJ 1 Reply Last reply
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                        • I 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.

                          jsulmJ Offline
                          jsulmJ Offline
                          jsulm
                          Lifetime Qt Champion
                          wrote on last edited by
                          #14

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

                          https://forum.qt.io/topic/113070/qt-code-of-conduct

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                          • jsulmJ jsulm

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

                            I Offline
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                            IknowQT
                            wrote on last edited by
                            #15

                            @jsulm

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

                            jsulmJ 1 Reply Last reply
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                            • I IknowQT

                              @jsulm

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

                              jsulmJ Offline
                              jsulmJ Offline
                              jsulm
                              Lifetime Qt Champion
                              wrote on last edited by
                              #16

                              @IknowQT You should know what you installed.
                              What does

                              ps ax | grep X
                              

                              output?

                              https://forum.qt.io/topic/113070/qt-code-of-conduct

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                              • jsulmJ jsulm

                                @IknowQT You should know what you installed.
                                What does

                                ps ax | grep X
                                

                                output?

                                I Offline
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                                IknowQT
                                wrote on last edited by
                                #17

                                @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
                                
                                
                                jsulmJ 1 Reply Last reply
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                                • I 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
                                  
                                  
                                  jsulmJ Offline
                                  jsulmJ Offline
                                  jsulm
                                  Lifetime Qt Champion
                                  wrote on last edited by
                                  #18

                                  @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).

                                  https://forum.qt.io/topic/113070/qt-code-of-conduct

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                                  • jsulmJ 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).

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                                    IknowQT
                                    wrote on last edited by IknowQT
                                    #19

                                    @jsulm

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

                                    jsulmJ 1 Reply Last reply
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                                    • I IknowQT

                                      @jsulm

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

                                      jsulmJ Offline
                                      jsulmJ Offline
                                      jsulm
                                      Lifetime Qt Champion
                                      wrote on last edited by
                                      #20

                                      @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...

                                      https://forum.qt.io/topic/113070/qt-code-of-conduct

                                      I 1 Reply Last reply
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                                      • jsulmJ 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...

                                        I Offline
                                        I Offline
                                        IknowQT
                                        wrote on last edited by
                                        #21

                                        @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?

                                        1 Reply Last reply
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