Re: [Qemu-devel] egl: EGL_MESA_image_dma_buf_export not supported / Failed to initialize EGL render node for SPICE GL

[Marc-André Lureau]

Hi

On Fri, Mar 8, 2019 at 7:45 AM manish jaggi <address@hidden> wrote:
>
> On Thu, Mar 7, 2019 at 9:55 PM Marc-André Lureau
> <address@hidden> wrote:
> >
> > Hi
> >
> > On Thu, Mar 7, 2019 at 3:00 PM manish jaggi <address@hidden> wrote:
> > >
> > > Hi List,
> > > I am trying to run qemu with spice gl=on with the below command line
> > > and getting errors.
> > >
> > > qemu-system-x86_64 -cdrom ubuntu-18.04.2-desktop-amd64.iso -hda
> > > u1.qcow2 -enable-kvm -m 1G -cpu host -smp 8 -machine vmport=off -boot
> > > order=dc -device virtio-vga,virgl=on -spice
> > > gl=on,unix,addr=/home/mjaggi/spice.sock,password=1,disable-ticketing
> > > -soundhw hda -device virtio-serial -chardev
> > > spicevmc,id=vdagent,debug=0,name=vdagent -device
> > > virtserialport,chardev=vdagent,name=com.redhat.spice.0
> > >
> > > qemu-system-x86_64: egl: EGL_MESA_image_dma_buf_export not supported
> > > qemu-system-x86_64: Failed to initialize EGL render node for SPICE GL
> >
> > It's a limitation of your graphics driver, it doesn't support the
> > required extensions.
> >
> > Which GPU and driver do you have?
> >
> AMD RX560, using mainline 5.0 kernel.
> is  EGL_MESA_image_dma_buf_export  must for spice gl=on?

Yes, you may try with spice gl=off and with -display egl-headless.
That should give accelerated host rendering, but with spice 2d
drawings copy.

>
> > thanks
> >
> > >
> > > Qemu configuration
> > > ./configure --enable-sdl --with-sdlabi=2.0 --enable-opengl
> > > --enable-virglrenderer --enable-system --enable-modules
> > > --target-list=x86_64-softmmu --enable-kvm  --disable-werror
> > >
> > > ...
> > > OpenGL support    yes
> > > OpenGL dmabufs    yes
> > >
> > > As per configure script
> > >
> > > #include <epoxy/egl.h>
> > > #ifndef EGL_MESA_image_dma_buf_export
> > > # error mesa/epoxy lacks support for dmabufs (mesa 10.6+)
> > > #endif
> > > int main(void) { return 0; }
> > > EOF
> > >   if compile_prog "" "" ; then
> > >     opengl_dmabuf=yes
> > >   fi
> > > fi
> > >
> > > So if OpenGL dmabufs   is yes, should I be getting
> > > EGL_MESA_image_dma_buf_export not supported error ?
> > > What I could be missing here
> > > Need help/guidance.
> > >
> > > -Thanks
> > > Manish
> > >
> >
> >
> > --
> > Marc-André Lureau



-- 
Marc-André Lureau