linux-kernel - Re: 2.6.25-rc3 + RS690 + DRM + xf86-video-ati hang

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Message-ID: <alpine.DEB.0.82.0803040816180.24971@skynet.skynet.ie>
Date:	Tue, 4 Mar 2008 08:16:49 +0000 (GMT)
From:	Dave Airlie <airlied@...ux.ie>
To:	Andrew Morton <akpm@...ux-foundation.org>
cc:	Jonathan McDowell <noodles@...th.li>, xorg-driver-ati@...ts.x.org,
	linux-kernel@...r.kernel.org
Subject: Re: 2.6.25-rc3 + RS690 + DRM + xf86-video-ati hang

On Mon, 3 Mar 2008, Andrew Morton wrote:

> On Sat, 1 Mar 2008 19:35:11 +0000 Jonathan McDowell <noodles@...th.li> wrote:
> 
> > If I enable CONFIG_DRM_RADEON under 2.6.25-rc3 then starting up
> > X using the xf86-video-ati driver (6.8.0 or latest git) causes the
> > machine to become unresponsive; while it still pings and will accept
> > incoming connections they never actually complete and it's not possible
> > to login over a serial console (the actual video console doesn't display
> > anything and the monitor reports a loss of sync).
> > 
> > Disabling the kernel DRM option results in X running successfully.
> > Likewise 2.6.24 works fine with DRM enabled, presumably because the
> > support for the RS690 was only added in 2.6.25-rc
> > 
> > The last messages from the kernel before it becomes unresponsive are:
> > 
> > [drm] Setting GART location based on new memory map
> > [drm] Loading R300 Microcode
> > [drm] writeback test succeeded in 1 usecs
> > 
> > The motherboard in question is an ASUS M2A-VM HDMI, with the analog VGA
> > output being used. The machine is running an AMD64 with Debian unstable.
> > I have put the output of lspci, a non drm Xorg.log and a drm Xorg.log
> > at:
> > 
> > http://the.earth.li/~noodles/xorg-ati-drm/lspci
> > http://the.earth.li/~noodles/xorg-ati-drm/Xorg.0.log-nodrm
> > http://the.earth.li/~noodles/xorg-ati-drm/Xorg.0.log-drm
> > 
> > If I can provide any more useful information please let me know.
> > 
> 
> Did 2.6.24 work OK with all the same userspace software?
> 

We haven't actually released any userspace software properly yet, its all 
experimental at this point until we debug the hardware some more..

Dave.
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