Bug 2158

Summary:	Display corruption with macintosh radeon r300 2d accelerated
Product:	xorg	Reporter:	Jerome Glisse <j.glisse>
Component:	Driver/Radeon	Assignee:	Xorg Project Team <xorg-team>
Status:	RESOLVED INVALID	QA Contact:
Severity:	major
Priority:	high	CC:	ajax, erik.andren, j.glisse, michel
Version:	git
Hardware:	PowerPC
OS:	Linux (All)
Whiteboard:
i915 platform:		i915 features:

Description Jerome Glisse 2004-12-27 05:11:35 UTC

The xaa acceleration give corrupted display with r300 chipset on
macintosh. The problem may came from a difference in setup between
r1/200 & r300 chipset.

For a screenshot :
http://dj.planet-d.net/Capture.png

To reproduce it simply enable dri with r300 on a macintosh.

This options work around the bug :
Option "XaaNoScanlineImageWriteRect"
Option "XaaNoScanlineCPUToScreenColorExpandFill"

Comment 1 Adam Jackson 2004-12-28 09:06:57 UTC

r300 doesn't have a real DRI driver yet, so there's no point in trying to enable
it.  does disabling
    Load "dri"
in your xorg.conf fix the problem?

Comment 2 Jerome Glisse 2004-12-28 09:45:52 UTC

yes disabling dri fix the problem. We wanted to add a bug
thus we can keep track of this. As 2D acceleration
work well with r300 on x86, at least on all configuration i
tested i got not problem with it. Thus,  this should just be a
matter of endianness to make the 2D part working on PPC
too. 

Maybe the bug should be set to another priorities.

Even if the 3D acceleration is far away of being available,
we should have the 2D working with an a mesa software
for 3D. The 2D acceleration give a real speed boost :)

Comment 3 Erik Andren 2006-03-15 05:38:23 UTC

Whats the status of this bug as of current?

Comment 4 Erik Andren 2006-04-12 07:22:10 UTC

Closing this bug due to the lack of activity. Please reopen if the bug still
persists.

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