Re: Is my Intel HD Graphics 4600 Xen VGA Passthrough to Windows 8 Enterprise HVM domU Considered Successful?

["Singapore Citizen Mr. Teo En Ming (Zhang Enming)" <singapore.mr.teo.en.ming@gmail.com>]

On 19/07/2013 21:16, Singapore Citizen Mr. Teo En Ming (Zhang Enming) wrote:
> On 19/07/2013 20:31, Andrew Bobulsky wrote:
>> On Fri, Jul 19, 2013 at 7:37 AM, Singapore Citizen Mr. Teo En Ming
>> (Zhang Enming) <singapore.mr.teo.en.ming@gmail.com> wrote:
>>> On 19/07/2013 19:31, Gordan Bobic wrote:
>>>> On Fri, 19 Jul 2013 19:15:39 +0800, "Singapore Citizen Mr. Teo En Ming
>>>> (Zhang Enming)" <singapore.mr.teo.en.ming@gmail.com> wrote:
>>>>> On 19/07/2013 19:02, Gordan Bobic wrote:
>>>>>> On Fri, 19 Jul 2013 18:56:24 +0800, "Singapore Citizen Mr. Teo En 
>>>>>> Ming
>>>>>> (Zhang Enming)" <singapore.mr.teo.en.ming@gmail.com> wrote:
>>>>>>> On 19/07/2013 18:42, Gordan Bobic wrote:
>>>>>>>> On Fri, 19 Jul 2013 18:27:07 +0800, "Singapore Citizen Mr. Teo 
>>>>>>>> En Ming
>>>>>>>> (Zhang Enming)" <singapore.mr.teo.en.ming@gmail.com> wrote:
>>>>>>>>> Hi,
>>>>>>>>>
>>>>>>>>> My Windows 8 Enterprise HVM domU configuration is as follows. 
>>>>>>>>> I have
>>>>>>>>> to *disable* gfx_passthru, that is, gfx_passthru=0. Please 
>>>>>>>>> take note.
>>>>>>>>
>>>>>>>> [...]
>>>>>>>>
>>>>>>>>> So is my Intel HD Graphics 4600 Xen VGA passthrough to Windows 8
>>>>>>>>> Enterprise HVM domU considered successful?
>>>>>>>>
>>>>>>>> If it works, it's successful.
>>>>>>>>
>>>>>>>>> I cannot enable gfx_passthru, that is, gfx_passthru=1. If I 
>>>>>>>>> enable
>>>>>>>>> gfx_passthru, Windows 8 Enterprise HVM domU would start for a few
>>>>>>>>> seconds, then the LCD monitor would go into power save mode 
>>>>>>>>> (blank
>>>>>>>>> screen) *forever*.
>>>>>>>>>
>>>>>>>>> Please advise me on how I can get VGA passthrough to work with
>>>>>>>>> gfx_passthru=1.
>>>>>>>>
>>>>>>>> Can you elaborate why exactly do you need to have that GPU passed
>>>>>>>> through as primary? Primary GPU passthrough has always been
>>>>>>>> problematic because domU has to re-post the card's BIOS which
>>>>>>>> has always been problematic.
>>>>>>>>
>>>>>>>> The only difference in the general case is that with 
>>>>>>>> gfx_passthru=1
>>>>>>>> you get to see the POST and boot information on the monitor
>>>>>>>> connected to the GPU. With gfx_passthry=0 you can only see this
>>>>>>>> in the VNC session connected to the virtual primary VGA card. In
>>>>>>>> the vast majority of cases seeing the POST and boot animation
>>>>>>>> isn't useful enough to be worth bothering with.
>>>>>>>>
>>>>>>>> I have a working setup with 2x Quadro cards, each passed through
>>>>>>>> as secondary (gfx_passthru=0) to different domUs, with separate
>>>>>>>> mice/keyboards passed through to each domU (multi-seat gaming
>>>>>>>> rig), and that works lovely (only limitation being 2GB of RAM
>>>>>>>> for each domU until I get around to upgrading to 4.3).
>>>>>>>>
>>>>>>>> Unless you have a very compelling reason to use gfx_passthru=1
>>>>>>>> I suggest you don't bother even trying.
>>>>>>>>
>>>>>>>> Gordan
>>>>>>>>
>>>>>>> Dear Gordan,
>>>>>>>
>>>>>>> I want to use the monitor connected to Intel HD Graphics 4600
>>>>>>> directly. I don't want to use a VNC session to connect to the 
>>>>>>> Windows
>>>>>>> 8 Enterprise HVM domU.
>>>>>>>
>>>>>>> Thank you very much.
>>>>>>
>>>>>> You only need VNC for the POST. Once Windows boots up you should be
>>>>>> be able to get all your display output on the physical screen.
>>>>>> Disable the virtual VGA interface in device manager if you have
>>>>>> to - I've found that is sometimes necessary to get the physical
>>>>>> GPU working properly.
>>>>>>
>>>>>> Gordan
>>>>>>
>>>>> Dear Gordan,
>>>>>
>>>>> How do I disable the virtual display adapter in Windows 8 Enterprise
>>>>> HVM domU? I see nothing on the physical screen at all.
>>>>
>>>> Have you tried going into your desktop/resolution settings and
>>>> extending your desktop to the physical monitor?
>>>>
>>>> Gordan
>>>>
>>>> _______________________________________________
>>>> Xen-devel mailing list
>>>> Xen-devel@lists.xen.org
>>>> http://lists.xen.org/xen-devel
>>>>
>>> Dear Gordan,
>>>
>>> How do I do that? What are the steps? Please elaborate. Please show 
>>> me any
>>> screenshots, if any.
>>>
>>>
>>> Thank you very much.
>>>
>>> -- 
>>> Yours sincerely,
>>>
>>> Singapore Citizen Mr. Teo En Ming (Zhang Enming)
>>
>> Hello Teo,
>>
>> I presume that Gordan means this: http://i.imgur.com/8OjstX4.png
>>
>> While there's probably a dozen ways to access it, most folks generally
>> right click the desktop and click "Screen Resolution."  I'm sure
>> you're aware of how to get there though :)
>>
>> Cheers,
>> Andrew
>>
>
> Hi,
>
> When I tried to change the settings in "Screen Resolution", I always 
> get this error:
>
> http://i.imgur.com/idb6Cf4.png
>
> It seems that the Intel HD Graphics 4600 display driver may be unstable.
>
> Although I can access the settings as shown below, I can't change 
> them. And I don't know how to change them as well.
>
> http://i.imgur.com/YGw9MdQ.png
>
> http://i.imgur.com/5zH2edv.png
>
> If I try to change any of the settings, I will get an error similar to 
> this below.
>
> http://i.imgur.com/idb6Cf4.png
>
> Any advise?
>

Hi,

How can I achieve Xen VGA Passthrough with gfx_passthru=1 instead of 
gfx_passthru=0?


-- 
Yours sincerely,

Singapore Citizen Mr. Teo En Ming (Zhang Enming)