[vfio-users] No screen while boot up VM

[globalgorrilla at fastmail.fm]

https://www.redhat.com/archives/vfio-users/2015-October/thread.html#00114

It seems to be OVMF in QEMU dealing with some new stuff since 4.2. There 
have been some fixes in both but I haven't found it to be stable. 4.1 is 
an LTS release and might serve you well until the newer stuff is more 
stable.

On 9 Nov 2015, at 19:17, Eddie Yen wrote:

> Roger that! And thanks for you info.
>
> What issue you got on 4.3?
> I have to update kernel because the orig kernel is 3.13, and it didn't
> support some VFIO features.
>
> 2015-11-10 11:13 GMT+08:00 <globalgorrilla at fastmail.fm>:
>
>> Host OS is Ubuntu 14.04.3 /w Linux Kernel 4.3
>>>
>>
>> I might try 4.1.X first. I've had issues still with 4.{2,3}
>>
>> If you end up looking for another card a K2200 works perfectly as a
>> primary with OVMF.
>>
>> I highly recommend the card. 4GB, 1-slot (this is very nice), low 
>> power,
>> low heat.
>>
>>
>> On 9 Nov 2015, at 18:45, Alex Williamson wrote:
>>>
>>
>> On Mon, Nov 9, 2015 at 7:36 PM, Eddie Yen <missile0407 at gmail.com> 
>> wrote:
>>>
>>> Hello, guys,
>>>> I got another problem when trying boot up VM on real server.
>>>>
>>>> The server is Dell PowerEdge R720 /w E5-2620v2 dual CPU (24 threads
>>>> total)
>>>> Host OS is Ubuntu 14.04.3 /w Linux Kernel 4.3
>>>> And QEMU is 2.4.1 /w Hyper-V patch.
>>>>
>>>> I tried to mount Quadro K420 into VM and install Windows 7
>>>> But when I launch VM by using QEMU command, I got nothing in my 
>>>> screen.
>>>>
>>>>
>>> IME, Quadro cards only work as secondary GPUs and only K-series, 
>>> 2000
>>> model
>>> or higher are supported by NVIDIA for GPU assignment (M-series may 
>>> work
>>> too).  Low-end Quadros are a black hole that are neither officially
>>> supported by NVIDIA nor do they typically work with the GeForce 
>>> quirks.
>>> Sorry.
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>>> vfio-users at redhat.com
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>>>
>>