broken DRM for ATI Radeon
From: Pierre Beyssac (pb_at_fasterix.frmug.org)
Date: 06/25/03
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Date: Wed, 25 Jun 2003 01:14:51 +0200 To: freebsd-current@freebsd.org
Since the "new" DRM has been integrated in current by the end of
April, I've been unable to use DRI with my ATI card.
The X server starts and apparently works, then suddenly (when
scrolling an xterm or doing some memory-intensive operation like
3D rendering) enters a busy loop.
After an awful lot of searching and attempting to debug the code,
I've finally been able to find out that the server loops on an
ioctl(DRM_IOCTL_DMA) returning EBUSY, which means that the DRM
driver can't get a free buffer from radeon_cp.c:radeon_freelist_get().
My XFree server is the latest version of the package
(XFree86-Server-4.3.0_8). Earlier versions exhibited the same
behaviour.
Does anyone have a clue on where to investigate some more and fix
that?
--
Pierre Beyssac pb@fasterix.frmug.org pb@fasterix.freenix.org
Free domains: http://www.eu.org/ or mail dns-manager@EU.org
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