Bug#673532: libgl1-mesa-dri: 3D acceleration not working with intel Sandy Bridge adapter
On Saturday 19 May 2012 14:55:02 Cyril Brulebois wrote:
> Alejandro Lorenzo Gallego <alejandro_aero@yahoo.es> (19/05/2012):
> > I have updated the mesa library update available in repositories and
> > applications that make intense use of accelerated hardware graphics
> > seem to fallback to software rendering with new 8.0.2 version.
> >
> > I have observed this behaviour in flightgear (both 2.4 from repository
> > and 2.6 compiled from source), iceweasel with a WebGL website (google
> > maps webgl) and glchess
> >
> > All these work fine if i revert libgl1-mesa-dri to version 7.11.2-1
>
> Hrm. It looks like you submitted info while running 8.0.2, and I don't
> think you're on swrast (software rastering), see below the underlined
> bits of glxinfo (with ^^^^).
>
Well... i know that according to glxinfo all should go well, but when running
Flightgear (this is the main requirement for my 3D) the framerate drops to 0
or 1 fps and the CPU load goes to 99% in one core (4 cores here)
exactly the same version of flightgear and in the same spot with libgl1-mesa-
dri renders at 22 fps
> The DRI2 bits in the X logs look fine too, but that might just my
> lacking coffee.
>
> 8.0.3 was announced earlier, maybe you're hitting some regressions,
> which might be fixed in 8.0.3:
> http://lists.freedesktop.org/archives/mesa-announce/2012-May/000037.html
>
> http://www.mesa3d.org/ still has 8.0.2 as top-most version as of this
> writing, so you'd have to look into git to learn about the bug fixes.
>
Ok, i'll take a look and report later.
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