On Thu, Jul 05, 2012 at 08:31:13AM +0200, Henrik Rydberg wrote: > Hi Ben, Dave, Hey Henrik, > > Since 3.5-rc0, I have been experiencing occasional screen corruption > on my MacBookAir3,1, using a GeForce 320M (nv50, 0xaf). The X driver > version is xf86-video-nouvea-1.0.1-1 (arch). > > I do not know what the root problem is, but I have been able to > isolate the symptoms to the usage of nva3_copy.c. The patch below is > the least intrusive way I could find which kills the symptoms. > > Hopefully this will sched some light on the true problem, such that a > fix can be found for 3.5. Thanks for tracking down the source of this corruption. I don't have any such hardware, so until someone can figure it out, I think we should apply this patch. Cheers, Ben. > > Thanks, > Henrik > > The nva3 copy engine exhibits random memory corruption in at least one > case, the GeForce 320M (nv50, 0xaf) in the MacBookAir3,1. This patch > omits creating the engine for the specific chipset, falling back to > M2MF, which kills the symptoms. > --- Signed-off-by: Ben Skeggs <bskeggs@xxxxxxxxxx> > drivers/gpu/drm/nouveau/nouveau_state.c | 1 - > 1 file changed, 1 deletion(-) > > diff --git a/drivers/gpu/drm/nouveau/nouveau_state.c b/drivers/gpu/drm/nouveau/nouveau_state.c > index 19706f0..b466937 100644 > --- a/drivers/gpu/drm/nouveau/nouveau_state.c > +++ b/drivers/gpu/drm/nouveau/nouveau_state.c > @@ -731,7 +731,6 @@ nouveau_card_init(struct drm_device *dev) > case 0xa3: > case 0xa5: > case 0xa8: > - case 0xaf: > nva3_copy_create(dev); > break; > } > > _______________________________________________ > dri-devel mailing list > dri-devel@xxxxxxxxxxxxxxxxxxxxx > http://lists.freedesktop.org/mailman/listinfo/dri-devel _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
