Xinerama and DBE

Alex Deucher alexdeucher at
Sat Nov 12 08:06:43 PST 2011

On Sat, Nov 12, 2011 at 8:33 AM, naquad <naquad at> wrote:
> Hi.
> Recently I've became happy owner of 2 videocards and 4 monitors.
> To configure them I've used Xinerama (config attached).
> I've lost XRandR support, but I can live with that, what's really
> disappointing is that double buffering is not working anymore.
> Everything is flickering: conky, terminals, basically almost every app that
> uses drawing.
> So the question is: how do I make double buffering (DBE module) to work
> again?
> Without it I'll go crazy or will become blind in a nearest couple of weeks
> :(

Most likely you weren't using DBE, with a single video card you were
probably using vsynced 3D which prevented tearing on your desktop.  3D
doesn't work xinerama at the moment.


> Thank you.
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