[Bug 55500] [sna gen4 w/a] corrupt rendering (including wrong rendering of characters and flickering on redraw)
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Wed Jan 1 06:12:00 PST 2014
https://bugs.freedesktop.org/show_bug.cgi?id=55500
--- Comment #149 from Edward Sheldrake <ejsheldrake at gmail.com> ---
(In reply to comment #148)
> Worth trying just:
>
> diff --git a/src/sna/gen4_render.c b/src/sna/gen4_render.c
> index 637137e..dc80de3 100644
> --- a/src/sna/gen4_render.c
> +++ b/src/sna/gen4_render.c
> @@ -660,9 +660,11 @@ inline static int gen4_get_rectangles(struct sna *sna,
> if (rem <= 0) {
> if (sna->render.vertex_offset) {
> gen4_vertex_flush(sna);
> - if (gen4_magic_ca_pass(sna, op))
> + if (gen4_magic_ca_pass(sna, op)) {
> + OUT_BATCH(MI_FLUSH |
> MI_INHIBIT_RENDER_CACHE_FLUSH);
> gen4_emit_pipelined_pointers(sna,
> op, op->op,
>
> op->u.gen4.wm_kernel);
> + }
> }
> OUT_BATCH(MI_FLUSH | MI_INHIBIT_RENDER_CACHE_FLUSH);
> rem = MAX_FLUSH_VERTICES;
>
> if you are happy that it reproduces reliably.
This change did not fully solve the problem. One text file in gedit displayed
as blank initially for a bit, although things then seemed fine. But the freeze
with "[drm] stuck on render ring" happened during a second run of gtkperf -
while the "GtkDrawingArea - Text" test was running.
But I didn't spot any corrupted characters while running 2.99.907 with
MAX_FLUSH_VERTICES set back to 6 - although I hadn't been running that for very
long, and I only see a single garbled char occasionally, and I think they only
appear in Firefox.
--
You are receiving this mail because:
You are the QA Contact for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/intel-gfx-bugs/attachments/20140101/d2c777d4/attachment.html>
More information about the intel-gfx-bugs
mailing list