[Bug 53637] Interference between KMS/RV515 and external firewire hardware (ffado device).

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=53637

--- Comment #13 from Alex Deucher <agd5f at yahoo.com> 2012-08-17 14:25:13 UTC ---
(In reply to comment #12)
> > You can also try setting:
> > Option "NoAccel" "True"
> 
> This works and without any noticeable tearing or clipping. No hardware
> acceleration but this is working better than disabling KMS.

It might be bandwidth contention.  The GPU pushes a lot of data around.

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