Xorg "intel" driver uses DRI2 by default instead of DRI3 ?

bubbleguuum <bubbleguuum@xxxxxxx> · Sat, 16 Mar 2019 19:51:41 +0100



    Hi list,

        
        driver version used: 2.99.917+git8674.25c9a2fcc-2.1

        Xorg: 1.20.4

        
        Is there a reason why the "intel" Xorg driver uses DRI2

        by default instead of DRI3 ? If you want DRI3 you need to use

        Option "DRI" "3".

        
        Using DRI2 cause problems with compositors such as compton, in
        partocular

        is causes scrolling in Firefox to stutter badly. Switching to
        DRI3 fixes the problem.

        
        See the end of this compton issue for the discussion that led to
        finding this:

        
        https://github.com/yshui/compton/issues/132 

        
        So shouldn't DRI3 be the default (it's the default when using
        the modesetting driver).

        
        ///

        
        That's unrelated, but "man intel" mentions that the TearFree
        option is disabled by default while

        I observed it was enabled by default on my system.

        
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