[RFC PATCH 0/4] Allow to use DRM fbdev emulation layer with CONFIG_FB disabled

[Sam Ravnborg]

Hi Noralf,

On Thu, Sep 09, 2021 at 06:27:02PM +0200, Noralf Trønnes wrote:
> 
> > > Hi Daniel,
> > >
> > > >
> > > > I think for a substantial improvement here in robustness what you
> really
> > > > want is
> > > > - kmscon in userspace
> > > > - disable FB layer
> > > > - ideally also disable console/vt layer in the kernel
> > > > - have a minimal emergency/boot-up log thing in drm, patches for that
> > > >   floated around a few times
> > >
> > > I assume you refer to this work by David Herrmann:
> > > "[RFC] drm: add kernel-log renderer"
> > > https://lists.freedesktop.org/archives/dri-devel/2014-March/055136.html
> > >
> >
> > There's also this:
> >
> > [PATCH v2 0/3] drm: Add panic handling
> >
> https://lore.kernel.org/dri-devel/20190311174218.51899-1-noralf@tronnes.org/
> 
> And here's a DRM console example that was part of the early drm_client work:
> 
> [RFC v4 25/25] drm/client: Hack: Add DRM VT console client
> https://lore.kernel.org/dri-devel/20180414115318.14500-26-noralf@tronnes.org/

Thanks for providing these pointers. Looks forwards to find time to play
with all this. Having an embedded board without any fbdev stuff seems
like a nice goal.

	Sam