[Spice-devel] Spice-streaming-agent: is it possible to replace main display channel with agent's video stream?

[Uri Lublin]

On 4/27/20 3:24 PM, ole-krutov at yandex.ru wrote:
> Hi,
> I can set display=off of course. But in that case Nvidia FBC 
> (FrameBuffer Capturing) is unusable. But we try to make and use a plugin 
> that uses that feature. I use GRID vGPUs. xorg.conf is set to use nvidia 
> card -- it's the same config that works with gst-plugin.

Hi,

Maybe try to modify some settings in FBC, such that it works with 
display=off.

Uri.


> 27.04.2020, 15:20, "Uri Lublin" <uril at redhat.com>:
> 
>     On 4/27/20 11:31 AM, Oleg Krutov wrote:
> 
>           We are trying to make plugin which uses nvidia FBC + NVENC
>         instead of
>           gst-plugin. When using FBC, I must set "display" to "on", else
>         FBC is
>           reporting as not supported. I can't do the trick with
>         qxl+nvidia with
>           display off as with gst-plugin. Thus, two spice windows
>         appear, one with
>           main display channel with choppy video, and second -- with h264
>           compressed captured video. There is no mouse controls in
>         second window,
>           and first window consumes much cpu and network bandwidth when
>         video or
>           dynamic graphics is displayed. So it would be great to stop output
>           primary display and redirect agent's video stream into it. Is
>         it somehow
>           possible? Thank you.
> 
>           --
>           Отправлено из мобильного приложения Яндекс.Почты
> 
> 
>     Hi,
> 
>     Why can you not set display=off ?
> 
>     Did you configure your X server to use the NVIDIA GPU or the QXL ?
> 
>     What NVIDIA card and driver are you using ?
> 
>     Uri.
>