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NovHak
Asked: 2019-11-12 19:48:34 +0800 CST

Is it just me or has Mutter stopped unredirecting full screen program displays?

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In 19.04, in X sessions, fullscreen displays such as Youtube videos were unredirected from Mutter compositing. That was obvious while using the intel modesetting driver, from the tearing.

However, now that I switched to 19.10, I notice no more tearing on fs Youtube videos. In an older window manager such as Metacity however, tearing is still atrocious so I know the change isn't coming from the driver.

So is it just me or did Mutter stop systematically unredirecting full screen program displays ? And then, did they go back to unconditional compositing or are special criteria used to avoid compositing games' displays ?

mutter compositing 19.10

1 Answers

  1. Best Answer

    I have problems with windows not being unredirected with 19.10 as well. Probably due to this bug: https://gitlab.gnome.org/GNOME/gnome-shell/issues/1788

    Updated:

    I looks like this problem is fixed in Ubuntu Proposed (you can enable this extra repository in Software Sources under "Developer Options"). I upgraded mutter / libmutter-5-0 as well as gnome-shell (though only the mutter upgrades was probably necessary).

    mutter/libmutter-5-0: 3.34.1+git20191107-1ubuntu1~19.10.1 gnome-shell: 3.34.1+git20191024-1ubuntu1~19.10.1

    Fixed unredirecting for me!

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