[Bug 71773] New: [GM45]: font corruption is back after 2a59eadf8165bd70780ac16220456c6196ac3ff1

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=71773

          Priority: medium
            Bug ID: 71773
          Assignee: chris at chris-wilson.co.uk
           Summary: [GM45]: font corruption is back after
                    2a59eadf8165bd70780ac16220456c6196ac3ff1
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: arekm at maven.pl
          Hardware: Other
            Status: NEW
           Version: git
         Component: Driver/intel
           Product: xorg

Commit
commit 2a59eadf8165bd70780ac16220456c6196ac3ff1
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Sun Jul 7 09:13:49 2013 +0100

    sna/gen4: Remove the glyph mask hack and tune the flush w/a

    Remove the hack from the glyph path to force the use of an auxiliary
    channel, and reduce the maximum amount of inflight vertices until we can
    then render glyphs with no corruption (at least in my test case).

    Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>

reverts
--- a/src/sna/sna_glyphs.c
+++ b/src/sna/sna_glyphs.c
@@ -1287,7 +1287,7 @@ next_image:
                                             __FUNCTION__,
                                             (int)p->atlas->format,
                                             (int)(format->depth << 24 |
format->format)));
-                                       if (p->atlas->format == (format->depth
<< 24 | format->format)) {
+                                       if (p->atlas->format == (format->depth
<< 24 | format->format) && (sna->kgem.gen >> 3) != 4) /* XXX cache corruption? 
how? */ {
                                                ok = sna->render.composite(sna,
PictOpAdd,
                                                                          
p->atlas, NULL, mask,
                                                                           0,
0, 0, 0, 0, 0,


and fonts corruption is back on my
00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset
Integrated Graphics Controller (rev 07) (prog-if 00 [VGA controller])
(thinkpad t400)

Reverting chunk above and fonts corruption is gone.

kde4.11 + xserver1.14.4 + kernel 3.12 here.

-- 
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/20131119/7bb12a5e/attachment.html>