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

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Date:	Mon, 3 Mar 2008 22:48:30 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Jonathan McDowell <noodles@...th.li>
Cc:	xorg-driver-ati@...ts.x.org, linux-kernel@...r.kernel.org,
	Dave Airlie <airlied@...ux.ie>
Subject: Re: 2.6.25-rc3 + RS690 + DRM + xf86-video-ati hang

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?
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