[Bug 35095] New: [r300g] More screen corruption in WoW with HyperZ enabled.

[Bug 35095] New: [r300g] More screen corruption in WoW with HyperZ enabled.

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=35095

           Summary: [r300g] More screen corruption in WoW with HyperZ
                    enabled.
           Product: Mesa
           Version: git
          Platform: x86 (IA32)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/r300
        AssignedTo: dri-devel@lists.freedesktop.org
        ReportedBy: rankincj@googlemail.com


There is now a large horizontal swathe of corruption across the middle of the
entire screen. This corruption vanishes as soon as I stop exporting
RADEON_HYPERZ.

This corruption appears with my M66GL (RV530 class) (but not with my RV350),
and is very recent - probably since the most recent HyperZ patches. Basically,
the corruption looks like lots of little tiles are missing from the picture.

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[Bug 35095] [r300g] More screen corruption in WoW with HyperZ enabled.

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https://bugs.freedesktop.org/show_bug.cgi?id=35095

Marek Olšák <maraeo@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |DUPLICATE

--- Comment #1 from Marek Olšák <maraeo@gmail.com> 2011-03-07 14:14:43 PST ---
Hi Chris,

this is a known bug. Honestly I have no idea why the magic black line shows up.
Please follow bug 33648 instead.

*** This bug has been marked as a duplicate of bug 33648 ***

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[Bug 35095] [r300g] More screen corruption in WoW with HyperZ enabled.

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https://bugs.freedesktop.org/show_bug.cgi?id=35095

--- Comment #2 from Chris Rankin <rankincj@googlemail.com> 2011-03-07 14:19:24 PST ---
That tiny pencil-line of corruption in 33648 looks nothing like what I'm
seeing.

WoW is looking more like someone has wiped away most of the tiles with a large
paint brush. (Think: the width of the entire screen and one third of its
height.)

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[Bug 35095] [r300g] More screen corruption in WoW with HyperZ enabled.

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https://bugs.freedesktop.org/show_bug.cgi?id=35095

--- Comment #3 from Marek Olšák <maraeo@gmail.com> 2011-03-07 14:23:56 PST ---
Could you post a screenshot?

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[Bug 35095] [r300g] More screen corruption in WoW with HyperZ enabled.

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https://bugs.freedesktop.org/show_bug.cgi?id=35095

--- Comment #4 from Chris Rankin <rankincj@googlemail.com> 2011-03-08 13:15:50 PST ---
Created an attachment (id=44249)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=44249)
Screenshot showing HyperZ corruption.

This corruption only seems to happen when playing full-screen, which
(unfortunately) means 1920x1200.

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[Bug 35095] [r300g] More screen corruption in WoW with HyperZ enabled.

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https://bugs.freedesktop.org/show_bug.cgi?id=35095

Chris Rankin <rankincj@googlemail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #44249|Screenshot showing HyperZ   |Deleted.
        description|corruption.                 |
  Attachment #44249|0                           |1
        is obsolete|                            |

--- Comment #5 from Chris Rankin <rankincj@googlemail.com> 2011-03-08 13:21:00 PST ---
(From update of attachment 44249)
Deleted.

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[Bug 35095] [r300g] More screen corruption in WoW with HyperZ enabled.

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https://bugs.freedesktop.org/show_bug.cgi?id=35095

Chris Rankin <rankincj@googlemail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #44249|Warcraft.jpeg               |
           filename|                            |

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[Bug 35095] [r300g] More screen corruption in WoW with HyperZ enabled.

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--- Comment #6 from Marek Olšák <maraeo@gmail.com> 2011-03-08 14:25:28 PST ---
Please enable HyperZ and try either of these:

RADEON_DEBUG=nozmask
RADEON_DEBUG=nohiz

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[Bug 35095] [r300g] More screen corruption in WoW with HyperZ enabled.

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https://bugs.freedesktop.org/show_bug.cgi?id=35095

--- Comment #7 from Chris Rankin <rankincj@googlemail.com> 2011-03-08 15:13:22 PST ---
The git commit that does this to WoW is:

d99ec708afbb785ce05031661222b38c9447059f is the first bad commit
commit d99ec708afbb785ce05031661222b38c9447059f
Author: Marek Olšák <maraeo@gmail.com>
Date:   Mon Feb 28 13:38:01 2011 +0100

    r300g: fix HiZ memory size computation and deciding when to use HiZ

    I removed the HiZ memory management, because the HiZ RAM is too small
    and I also did it in hope that HiZ will be enabled more often.

    This also sets aligned strides to HIZ_PITCH and ZMASK_PITCH.

:040000 040000 06b80f252cf7a052ef8be4dd098fd90de5d4a4e7
9dea1e6fda15ca3704c9324157a6e43c15140396 M    src

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[Bug 35095] [r300g] HiZ broken in WoW

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https://bugs.freedesktop.org/show_bug.cgi?id=35095

Marek Olšák <maraeo@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[r300g] More screen         |[r300g] HiZ broken in WoW
                   |corruption in WoW with      |
                   |HyperZ enabled.             |
             Status|RESOLVED                    |REOPENED
         Resolution|DUPLICATE                   |

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[Bug 35095] [r300g] HiZ broken in WoW

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https://bugs.freedesktop.org/show_bug.cgi?id=35095

--- Comment #8 from Chris Rankin <rankincj@googlemail.com> 2011-03-08 15:24:28 PST ---
(In reply to comment #6)
> Please enable HyperZ and try either of these:
> 
> RADEON_DEBUG=nozmask

This makes no difference.

> RADEON_DEBUG=nohiz

And this removes the corruption.

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[Bug 35095] [r300g] HiZ broken in WoW

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https://bugs.freedesktop.org/show_bug.cgi?id=35095

--- Comment #9 from Marek Olšák <maraeo@gmail.com> 2011-05-14 18:40:57 PDT ---
Could you test the latest Mesa master branch? There are some new HiZ fixes.

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[Bug 35095] [r300g] HiZ broken in WoW

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https://bugs.freedesktop.org/show_bug.cgi?id=35095

--- Comment #10 from Chris Rankin <rankincj@googlemail.com> 2011-05-15 05:06:36 PDT ---
(In reply to comment #9)
> Could you test the latest Mesa master branch? There are some new HiZ fixes.

At best, those HiZ fixes didn't help. But I suspect the corrupt area on the
login screen may actually be larger now.

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[Bug 35095] [r300g] HiZ broken in WoW

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--- Comment #11 from Chris Rankin <rankincj@googlemail.com> 2011-06-23 00:55:35 PDT ---
I've just retested WoW with HiZ enabled on my M66GL and the 2.6.39.1 kernel,
and my dmesg log now fills up with these messages:

[drm:r100_cs_track_check] *ERROR* [drm] No buffer for z buffer !
[drm:radeon_cs_ioctl] *ERROR* Invalid command stream !

RADEON_DEBUG=nohiz "fixes" it still.

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[Bug 35095] [r300g] HiZ broken in WoW

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--- Comment #12 from Chris Rankin <rankincj@googlemail.com> 2011-06-25 07:18:01 PDT ---
(In reply to comment #11)
> I've just retested WoW with HiZ enabled on my M66GL and the 2.6.39.1 kernel,
> and my dmesg log now fills up with these messages:
> 
> [drm:r100_cs_track_check] *ERROR* [drm] No buffer for z buffer !
> [drm:radeon_cs_ioctl] *ERROR* Invalid command stream !

This is no longer happening with 2.6.39.2 kernel and latest Mesa from git.
Original corruption has been restored.

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[Bug 35095] [r300g] HiZ broken in WoW

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https://bugs.freedesktop.org/show_bug.cgi?id=35095

--- Comment #13 from Marek Olšák <maraeo@gmail.com> ---
Is this still an issue with current Mesa git?

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[Bug 35095] [r300g] HiZ broken in WoW

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https://bugs.freedesktop.org/show_bug.cgi?id=35095

--- Comment #14 from Chris Rankin <rankincj@googlemail.com> ---
(In reply to comment #13)
> Is this still an issue with current Mesa git?

That's tricky: WoW has changed its login screen since I first reported this
bug. And I'm going to need to upgrade to libdrm-2.4.40 in order to compile the
latest Mesa anyway. (Fedora 17 only has 2.4.39).

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[Bug 35095] [r300g] HiZ broken in WoW

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https://bugs.freedesktop.org/show_bug.cgi?id=35095

--- Comment #15 from Chris Rankin <rankincj@googlemail.com> ---
(In reply to comment #13)
> Is this still an issue with current Mesa git?

I've just tested WoW on my M66GL (RV535?) with the latest Mesa which has head:

commit 54ff536823bf5a431efe1f2becdb21174c146948
Author: Marek Olšák <maraeo@gmail.com>
Date:   Sun Dec 2 22:22:39 2012 +0100

    r300g: increment num_z_clears only if we have Hyper-Z

And it seems to work OK; no artifacts seen. Unfortunately, the new WoW login
screen didn't have the problem that the previous one had anyway.

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[Bug 35095] [r300g] HiZ broken in WoW

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https://bugs.freedesktop.org/show_bug.cgi?id=35095

Marek Olšák <maraeo@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|REOPENED                    |RESOLVED
         Resolution|---                         |WORKSFORME

--- Comment #16 from Marek Olšák <maraeo@gmail.com> ---
Ok. I guess you can't try the old login screen anymore, so I'll just close this
bug. You can re-opened it if you encounter the same issue.

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