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Date: Tue, 24 Mar 2015 15:09:59 +0100
From: Stefan Priebe <s.priebe@profihost.ag>
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Subject: Re: [Qemu-devel] Qemu 2.2.1 black screen of death in windows 2012 R2
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To: Paolo Bonzini <pbonzini@redhat.com>, qemu-devel <qemu-devel@nongnu.org>, qemu-stable@nongnu.org

Hi,

it started to work again with virtio 100 instead of 94. No idea why it 
works with qemu 2.2.0.

Stefan

Am 24.03.2015 um 12:15 schrieb Stefan Priebe - Profihost AG:
>
> Am 24.03.2015 um 11:45 schrieb Paolo Bonzini:
>>
>>
>> On 24/03/2015 11:39, Stefan Priebe - Profihost AG wrote:
>>> after upgrading Qemu from 2.2.0 to 2.2.1
>>>
>>> Windows 2012 R2 works after installing. But after applying 72 updates it
>>> breaks with a black screen of death.
>>
>> Can you bisect it?
>
> Have to try might be possible.
>
>>> Linking to this KB:
>>> https://support.microsoft.com/en-us/kb/2939259
>>
>> That KB, I think, refers to running a hypervisor (e.g. VMware
>> Workstation) _inside_ Windows.
>
> Screenshot of the windows screen attached. This is just a blank windows
> 2012 R2 with virtio 94 drivers installed.
>
> Stefan
>