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Re: [Xen-devel] Issues with Intel HD graphics 4000

I think the suggestion of trying things without the iommu is a good one.
You can start with "iommu=off" to completely disable it.

We have seen some interactions with the IOMMU and IGD.

On Mon, Jun 17, 2013 at 11:02 AM, Joshua Tuttle <jtuttle@xxxxxxxxx> wrote:
> Konrad,
> Thanks for replying. I'm running a Debian 7.0 install with default kernel 3.2 
> and xen 4.1.4. My PC is an Asus K55A-DS71 which contains the newer Intel 4000 
> integrated graphics, 8GB of RAM, and an i7-3630QM.  Andrew recommended trying 
> and update to 3.4.44  So I will try that real quick to see if that resolves 
> the issue.
> Josh
> -----Original Message-----
> From: Konrad Rzeszutek Wilk [mailto:konrad.wilk@xxxxxxxxxx]
> Sent: Monday, June 17, 2013 10:48 AM
> To: Joshua Tuttle
> Cc: xen-devel@xxxxxxxxxxxxx
> Subject: Re: [Xen-devel] Issues with Intel HD graphics 4000
> On Mon, Jun 17, 2013 at 09:13:01AM -0400, Konrad Rzeszutek Wilk wrote:
>> On Fri, Jun 14, 2013 at 07:46:39PM +0000, Joshua Tuttle wrote:
>> > Hey,
>> >
>> > Are there any known issues with the Intel's integrated HD graphics 4000? I 
>> > just bought a new laptop and have tried everything I can think of to get 
>> > Xen to load. After choosing Xen in GRUB, it just boots to a black screen. 
>> > There is no error message , no dmesg output, nothing. I have no idea what 
>> > is causing this problem. I've gotten Xen to install with no problems on 
>> > another machine that has an nvidia geforce 210. I've tried different boot 
>> > parameters as well to try and default to the linux vga driver instead of 
>> > trying to use the intel one. My linux debian distro, has no problem 
>> > booting though.
>> >
>> What version of the kernel/distro is it? And what version of laptop?
>> (I think I have a ThinkPad with HD something something so could reproduce 
>> it).
> The X230 thinkpad has HD Graphics 4000 and with a stock Fedora 18 (3.9.5 
> someting)+ stock Xen install (yum install xen).  I can boot in it with 
> graphics.
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