Re: drm-gem libdrm automake fix

[Steven J N. <st...@sn...>]

On Wed, 2008-06-25 at 20:03 +0100, Steven J Newbury wrote:
> On Wed, 2008-06-25 at 11:30 -0700, Jesse Barnes wrote:
> > On Wednesday, June 25, 2008 10:28 am Steven J Newbury wrote:
> > > On Wed, 2008-06-25 at 16:29 +0100, Johannes Engel wrote:
> > > > Steven J Newbury wrote:
> > > > > When building with a separate objdir -I$(top_srcdir)/libdrm needs to be
> > > > > added to the intel Makefile.am otherwise only $(top_builddir)/libdrm is
> > > > > included which doesn't contain the source headers.
> > > > >
> > > > > I've also been unable to build the drm-gem DRM module against the
> > > > > current git linux tree, what changes are needed (to the linux headers;
> > > > > and symbol exports?) and is there a patch?
> > > >
> > > > Have a look at bug #16474. Also you need to export symbols shmem_getpage
> > > > and shmem_file_setup via EXPORT_SYMBOL in <kernel-source>/mm/shmem.c.
> > > > For me it compiles using this changes but does not work stable since it
> > > > crashes once you start for example glxgears.
> > > >
> > > > Cheers, Johannes
> > >
> > > Thanks Johannes,  I spotted that soon after posting (I filter the
> > > bugzilla messages separately) and have just tried it.  Unfortunately, I
> > > don't even get that far, drm reports that it "fails to map the ring
> > > buffer" and X fails to start. :(
> > 
> > Are you running the drm-gem branch of the 2D driver as well?
> It certainly should have been! :)
> 
> I'll give it another try tomorrow.
> > 
> > > The "master" version has stopped working for me now with sync to
> > > vertical refresh turned on.  Is it working for you?  I'm running with
> > > the current master versions of everything...
> > 
> > Might be #16118?
> I'll give that patch a try and let you know.
> 
That changed the behaviour. After testing with glxgears, rather than not
starting rendering, it now draws an image but only appears to get
refreshed about twice a second.  It does report the rate at the display
FPS though.  Very strange.