Hi,
On 03-09-15 19:33, Ilia Mirkin wrote:
On Thu, Sep 3, 2015 at 7:25 AM, Hans de Goede <hdego...@redhat.com> wrote:
On nv4x with a msaa visual after a while the gpu locks up, attach gdb to
impress shows it is hanging waiting for a fence which never comes.
Killing ooimpress at this point works exactly once, trying to do any
3d operations after killing impress will lockup the entire system.
This needs further investigation, but for now disable msaa because no
msaa is better then crashing the system.
That's an argument I'm willing to live with -- can you generate such a
patch without your previous patch?
However if we do this, this is basically saying that MSAA will never
work on nv3x/nv4x, since it's unlikely that anyone will look further
into it. It'd be nice to put a little effort in first to make sure
there isn't something simple we can fix.
My plan was for me to commit to at least taking a serious attempt
at fixing this, see my mail in the "nv3x libreoffice impress opengl
animations not working" thread.
In the mean time I think it would be good to have a patch such as this
one upstream, so that things will just work for nv30 family users and
we can also Cc such a patch to
"10.6 11.0" <mesa-sta...@lists.freedesktop.org>
Where as the fix may not be suitable for stable.
Regards,
Hans
Signed-off-by: Hans de Goede <hdego...@redhat.com>
---
src/gallium/drivers/nouveau/nv30/nv30_screen.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/src/gallium/drivers/nouveau/nv30/nv30_screen.c
b/src/gallium/drivers/nouveau/nv30/nv30_screen.c
index 69acc38..57262b8 100644
--- a/src/gallium/drivers/nouveau/nv30/nv30_screen.c
+++ b/src/gallium/drivers/nouveau/nv30/nv30_screen.c
@@ -321,7 +321,8 @@ nv30_screen_is_format_supported(struct pipe_screen *pscreen,
{
struct nv30_screen *screen = nv30_screen(pscreen);
- if (screen->eng3d->oclass >= NV40_3D_CLASS) {
+ /* MSAA visuals work somwhat on nv4x, but cause gpu lockups */
+ if (0 && screen->eng3d->oclass >= NV40_3D_CLASS) {
if (sample_count > 4)
return false;
} else {
--
2.4.3
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