<![CDATA[Multiple QT apps in virtual Terminals]]>Hi All,

I have 2 QT apps. The first apps is Sway which runs on XCB platform plugin. The 2nd app is another QT app which either uses eglfs or linuxfb as platform plugin.

First I run sway, then I run the 2nd app which first switches the virtual terminal to tty2 and then displays. Now I want to switch to tty1 which has sway running. With LinuxFb plugin in 2nd QT app I cannot do chvt 1 because it just hangs. If I use eglfs plugin to run second app it never switches virtual terminals and displays.

Please let me know how can I run 2 QT apps in different virtual terminals.

Thank you for your support.

]]>https://forum.qt.io/topic/127024/multiple-qt-apps-in-virtual-terminalsRSS for NodeMon, 24 Aug 2026 07:23:23 GMTWed, 26 May 2021 16:20:23 GMT60<![CDATA[Reply to Multiple QT apps in virtual Terminals on Thu, 27 May 2021 18:38:12 GMT]]>

  • I highly doubt that because each application will take ownership of input devices.

  • Same as above.

    • If you want active multi-head support why are you dumping Wayland ?

    ]]>    https://forum.qt.io/post/661932https://forum.qt.io/post/661932Thu, 27 May 2021 18:38:12 GMT    <![CDATA[Reply to Multiple QT apps in virtual Terminals on Thu, 27 May 2021 06:21:01 GMT]]>Hi @SGaist

    We want to slowly move away to EGLFS but for now we have one QT app(Sway compositor https://swaywm.org/ ) with XCB plugin and the other with EGLFS.
    Two questions

    1. Would 2 qt apps run in parallel in virtual terminal if they both use EGLFS plugin and switch between them using chvt? If NO, why?
    2. Would 2 qt apps run in parallel in virtual terminal if they both use Linuxfb plugin and switch between them using chvt? If NO, why?

    Sorry, I am very new to QT. I couldnt find any questions related to my use case where 2 QT apps/processes use the same display.

    Thanks a lot.

    ]]>    https://forum.qt.io/post/661844https://forum.qt.io/post/661844Thu, 27 May 2021 06:21:01 GMT    <![CDATA[Reply to Multiple QT apps in virtual Terminals on Wed, 26 May 2021 18:30:35 GMT]]>Hi and welcome to devnet,

    I am not sure that this possible like that.

    Why not use xcb for both ?

    ]]>    https://forum.qt.io/post/661766https://forum.qt.io/post/661766Wed, 26 May 2021 18:30:35 GMT