[vfio-users] No video output from dedicated GPU when doing PCI passthrough

[Elias Kosunen]

I got it to work! Fiddling with the drivers seems to have fixed it. I 
still need to figure out a way to get audio, keyboard and mouse working 
properly, but still a huge thank you for your help!

On 04/16/2017 09:15 PM, Marius Steffen wrote:
> For HID button over interrupt, see: 
> https://bugzilla.redhat.com/show_bug.cgi?id=1377155#c12
> 
> Also for installation of drivers, reattach the virtio driver ISO to the 
> VM. Then let Device Manager look recursively in the CD drive the ISO is 
> loaded into, and install all drivers.
> 
> Marius Steffen
> 
> Am 16.04.2017 um 15:28 schrieb Elias Kosunen:
>> XML dump: https://pastebin.com/MFdqSV1F
>> I haven't touched it by hand at all, it's all generated by virt-manager.
>>
>> I installed Windows and booted into it. Here's a screengrab of the 
>> Windows Device Manager: http://imgur.com/crC1lsd I was able to install 
>> the drivers for the first one ("Microsoft Basic Display Adapter") and 
>> after the installation its name changed to "MSI AMD R9 380" and its 
>> errors went away. For the others, it couldn't automatically find the 
>> drivers.
>>
>> For the "HID Button over Interrupt Driver", the status message was:
>>    This device is not working properly because Windows cannot load the 
>> drivers required for this device (Code 31)
>>    Object Name not found.
>>
>> And for the others it was the same:
>>    The drivers for this device are not installed. (Code 28)
>>
>> According to Windows, the "PCI Device" is attached to PCI slot 10, 
>> "PCI Simple Communications Controller" to slot 7 and "Video 
>> Controller" to slot 12. Unfortunately, I was unable to figure out 
>> which devices these refer to.
>>
>>
>> On 04/16/2017 02:49 PM, Marius Steffen wrote:
>>> Could you please attach your virtual machine's config XML (output of 
>>> 'sudo virsh dumpxml <your_machine_name>')?
>>> Also, Graphical Console is not available because you removed the QXL 
>>> controller and SPICE server. Please try reattaching them (SPICE, 
>>> Tablet, set video controller type to QXL) and keep your GPU attached.
>>> Start into Windows 10 (you should be able to use the Graphical 
>>> Console in virt-manager now) and tell us/take a screenshot of 
>>> Windows' device manager, and possible errors it's showing regarding 
>>> your GPU.
>>
>> _______________________________________________
>> vfio-users mailing list
>> vfio-users at redhat.com
>> https://www.redhat.com/mailman/listinfo/vfio-users
> 
> _______________________________________________
> vfio-users mailing list
> vfio-users at redhat.com
> https://www.redhat.com/mailman/listinfo/vfio-users