Re: [agl-dev-community] Tips for debugging GPU acceleration.

[Marius Vlad]

On Fri, Oct 23, 2020 at 12:52:17PM +0100, Alex Bennée wrote:
> 
> Gerd Hoffmann <kraxel@redhat.com> writes:
> 
> >   Hi,
> >
> >>   [    2.930300] [drm] virgl 3d acceleration not supported by host
> >
> > Nope, not active.
> >
> >>     -display gtk,show-cursor=on \
> >
> > Needs -display gtk,gl=on for opengl support.
> 
> Awesome - even on TCG the display is now nice and snappy.
> 
> For bonus points:
> 
> The AGL panel display is rotated 90 degrees which is putting a bit of a
> crink in my neck. Is their anyway to rotate the view port. I tried
> inverting xres and yres but that didn't do anything.
Hi,

The output is rotated, edit /etc/xdg/weston/weston.ini and comment out
transform ini entry from the Virtual-1 output section. Reboot, or
restart weston@display service. Note that the apps are optimized for
landscape. 

Enabling 3D with qemu might be something worth adding in the docs.
> 
> >>     -device virtio-gpu-pci,virgl=true
> >
> > virgl is silently turned off in case opengl support is not available.
> > Ideally virgl should be OnOffAuto not bool, but I fear changing that
> > now (and start throwing errors on virgl=on if opengl is not available)
> > will break stuff ...
> 
> At least a warn_report maybe?
> 
> >
> > take care,
> >   Gerd
> 
> 
> -- 
> Alex Bennée
> 
> 
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>  [marius.vlad@collabora.com]
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