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Thread: FireFox stained dot screen issue

  1. #1
    Join Date
    Nov 2019
    Beans
    10

    FireFox stained dot screen issue

    Hello All,

    Since some weeks (1st of march 2021), there's curious screen issue with FireFox on one of the PC I'm following.

    Practically there's dots, or stains, that are messing all over the screen (or the FirFox windows).
    These dots moves or disperses like flies when one move the mouse or turns the mouse's scrolling wheel.

    There's examples:
    Ub18FF01.png
    Ub18FF05.png
    This screen issue appears when browsing the web with FireFox, or opening a document inside FireFox.
    For instance, when opening a *.pdf file from FireFox these dots are messing all over the document.
    But when opening the same *.pdf file outside of FireFox, everything's perfect.

    There's FireFox and Ubuntu versions:
    Ub18FF05.png
    Ub18FF06.png

    Any idea how to fix it ?


    Thanks for any help.
    Kind regards,
    joseph

    Note: Last year I've installed 6 PC (different brand and models) with same Linux Ubuntu 18.04 & FireFox settings, and this screen issue appears only on one of them.
    Attached Images Attached Images

  2. #2
    Join Date
    Jun 2018
    Beans
    161

    Re: FireFox stained dot screen issue

    Have you tried to disable hardware acceleration in FF settings?
    Have a ubuntastic day!

  3. #3
    Join Date
    Nov 2019
    Beans
    10

    Re: FireFox stained dot screen issue

    Quote Originally Posted by dinkidonk View Post
    Have you tried to disable hardware acceleration in FF settings?
    Hello Dinkidonk,
    That's it !
    You're perfectly right, one just need to uncheck the hardware acceleration settings in FireFox, restart FireFox, and everything is fine again.

    Thank you very much for your quick and efficient help !
    Have a nice day too,
    Kind regards,
    joseph

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