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<H1>[Mageia-dev] Fwd: fallback mode</H1>
<B>Olav Vitters</B>
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TITLE="[Mageia-dev] Fwd: fallback mode">olav at vitters.nl
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<I>Tue Nov 6 10:07:08 CET 2012</I>
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<PRE>On Tue, Nov 06, 2012 at 01:05:04AM +0100, JA Magallón wrote:
><i> I have connected my Atom netbook to a big monitor, and it handles
</I>><i> perfecly the FullHD resolution. Gnome full mode works fine and fast.
</I>><i> Its an Atom N450, graphics are recognised as N10 or Intel(R) Pineview GM.
</I>><i>
</I>><i> All this with the monitor as the _ONLY_ monitor active.
</I>><i>
</I>><i> If I try to use it on a multi-monitor setup, X gives a message about non-tiled
</I>><i> framebuffer and gnome-shell is slooooow as hell, unusable.
</I>><i> Probably that is a hardware limit, or a bug, because it happens even if
</I>><i> the external monitor is a projector at 1024x768.
</I>><i>
</I>><i> I was wating to do more tests to submit a bug....
</I>
This might be a known driver/xorg issue. Various hardware either don't
work, or gets slow if the framebuffer exceeds 2048 pixels
(width/height/something). I'm not sure what the plan with that was, if
that could be fixed still in xorg, or only in Wayland. I think it was
fixable in xorg, but I'll have to check.
In any case, the obvious status is that at the moment some people cannot
run GNOME 3 and they have to rely on fallback mode. Debian suggested a
method to detect this during installation time. I don't expect GNOME 3
to suddenly be good enough for everyone in 3.8. This as many of the
causes are not due to GNOME (bad drivers).
--
Regards,
Olav
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