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List: freedesktop-xorg
Subject: modesetting and DRI2/3
From: zahlenmeer () gmx ! de
Date: 2016-07-27 16:24:58
Message-ID: b51d3ff1-fb85-58d2-315c-b55e9747cb39 () gmx ! de
[Download RAW message or body]
Hey everyone,
I am struggling to understand how the modesetting driver and DRI play
together.
This is from Xorg.0.log:
[ 2350.977] (II) Loading /usr/lib/xorg/modules/drivers/modesetting_drv.so
[ 2350.977] (II) modeset(0): using drv /dev/dri/card0
[ 2350.984] (II) glamor: OpenGL accelerated X.org driver based.
[ 2351.387] (II) modeset(0): [DRI2] DRI driver: i965
[ 2351.387] (II) modeset(0): [DRI2] VDPAU driver: i965
And this is from glxinfo:
libGL: Using DRI3 for screen 0
I read that modesetting uses DRI3 by default so I am a bit surprised to
read something like "modeset(0): [DRI2]" in my logs. I also tried and
compiled xorg with the --disable-dri2 flag. In this case I get aiglx
errors that modesetting failed to initalize the DRI2 extension.
Could anyone explain this behaviour to me?
Kind regards
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