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QWebEngineView has no display in ubuntu-desktop-lxde-vnc docker container

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dockerdisplayblack screenpyqt5qtwebengineview
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    deeperblue
    wrote on 24 Jan 2019, 13:58 last edited by deeperblue
    #1

    I'm developing a simplest webapp using PyQt5. However, the QWebEngineView has no display in ubuntu-desktop-lxde-vnc docker container(index.docker.io/dorowu/ubuntu-desktop-lxde-vnc), while which in Chromium is OK.

    0_1548338096732_78ab2da5-6093-43d7-81d4-b87ad46f7cdc-image.png

    The webpage had been loaded, for the contents can be shown while selecting and dragging them (Notice the console's output: "Falling back to using screens root_visual"),
    0_1548338268796_a188ed77-c8c3-496c-8c06-4a9be8adb56a-image.png

    but disappear right after the dragging was off.

    Is there anyone has met the same problem?

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