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Re: [Xen-devel] Xen 4.1 + PVOPS and Sandy Bridge integrated gr

To: AP Xen <apxeng@xxxxxxxxx>
Subject: Re: [Xen-devel] Xen 4.1 + PVOPS and Sandy Bridge integrated graphics
From: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
Date: Tue, 31 May 2011 09:59:57 -0400
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On Fri, May 27, 2011 at 03:32:37PM -0700, AP Xen wrote:
> I am trying to get Xen 4.1 + Dom0 working on my Thinkpad
> x220 which has the Sandybridge integrated graphic device. Everything
> works except X does not come up. I am attaching the dom0 and xen boot,
> Xorg log, lspci output and dom0 configuration that I used to build it.

> The only errors I am seeing are in the xorg logs:

I would have expected some more details from the drm.. 

> [    14.557] (EE) open /dev/fb0: No such file or directory
> [    14.778] (EE) intel(0): No kernel modesetting driver detected.
> [    14.778] (II) UnloadModule: "intel"
> [    14.778] (EE) Screen(s) found, but none have a usable configuration.
> [    14.778]
> Fatal server error:
> [    14.778] no screens found
> [    14.778]
> I checked out the XenPVOPSDRM wiki page and I have tried the various
> suggestions mentioned there including "nomodeset". Have there been new
> developments in this area? Are there new branches that I could try?
> Thanks,
> AP

I was under the impression that SandyBridge support required
kernel 2.6.37 or later..? The other issue is, do you have
this in your git tree:

commit 96587057018b3ac0b11bf34b791aaadfc403fc80
Author: Zhang, Fengzhe <fengzhe.zhang@xxxxxxxxx>
Date:   Wed Feb 16 22:26:20 2011 +0800

Does Xorg work when you boot this kernel under baremetal?

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