On Thu, Jul 25, 2019 at 08:40:34PM +1000, Jonathan Gray wrote:
> On Tue, Jul 23, 2019 at 04:32:50PM +1000, Jonathan Gray wrote:
> > On Sun, Jul 21, 2019 at 11:23:12PM +1000, Ross L Richardson wrote:
> > > On Sun, Jul 21, 2019 at 07:41:58PM +1000, Jonathan Gray wrote:
> > > > On Sat, Jul 20, 2019 at 10:32:46PM +1000, [email protected] wrote:
> > > > > >Synopsis: X11 graphics not working in snapshots on Braswell system
> > > > > >Category: amd64
> > > >[...]
> > > > Does this backport from linux help?
> > > >[...]
> > >
> > > No. The box still locks up (unfortunately).
> >
> > Thanks for reporting and trying that. Nothing else comes to mind.
> >
> > I've placed an order for a Braswell NUC and can hopefully reproduce and
> > debug this when that shows up.
> >
>
> I see the same thing.
cherryview/braswell still had trouble even after recent port of drm from
linux 5.7.
I can run X on -current with < gen8 style rings.
Index: dev/pci/drm/i915/i915_pci.c
===================================================================
RCS file: /cvs/src/sys/dev/pci/drm/i915/i915_pci.c,v
retrieving revision 1.3
diff -u -p -r1.3 i915_pci.c
--- dev/pci/drm/i915/i915_pci.c 8 Jun 2020 04:48:11 -0000 1.3
+++ dev/pci/drm/i915/i915_pci.c 30 Jun 2020 15:37:20 -0000
@@ -588,7 +588,7 @@ static const struct intel_device_info ch
.has_runtime_pm = 1,
.has_rc6 = 1,
.has_rps = true,
- .has_logical_ring_contexts = 1,
+ .has_logical_ring_contexts = 0,
.display.has_gmch = 1,
.ppgtt_type = INTEL_PPGTT_ALIASING,
.ppgtt_size = 32,
