[Bug 72895] New: Missing trees in flightgear 2.12.1 with r600 driver and mesa 10.0.1

[Bug 72895] New: Missing trees in flightgear 2.12.1 with r600 driver and mesa 10.0.1

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=72895

          Priority: medium
            Bug ID: 72895
          Assignee: dri-devel@lists.freedesktop.org
           Summary: Missing trees in flightgear 2.12.1 with r600 driver
                    and mesa 10.0.1
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: mister.freeman@laposte.net
          Hardware: All
            Status: NEW
           Version: unspecified
         Component: Drivers/Gallium/r600
           Product: Mesa

Created attachment 91014
  --> https://bugs.freedesktop.org/attachment.cgi?id=91014&action=edit
glxinfo output

I have a radeon HD4650 PCIe running in archlinux 64 bits OS,

I use the r600 driver,

OpenGL vendor string: X.Org
OpenGL renderer string: Gallium 0.4 on AMD RV730
OpenGL core profile version string: 3.1 (Core Profile) Mesa 10.0.1 ( you can
fin full gxinfo output in the attachement with this message )

Since I upgrade to Mesa 10.0.1 I notice missing trees in flightgear 2.12.1,

on startup I can see trees, vegetations, but if I maximize the windows or if I
start the engine or move the plane the trees disappear,

it's a weird bug because sometimes the trees appear again when moving the plane
or using a different point of view ( tower, outside the plane ), but instantly
these trees disappear again when I return in the cockpit of the plane,

see the attachements with this mail ( 2 screenshots, one with the trees
displayed, and one when the bug occurs, no trees ),

I think it's a bug from mesa 10.0.1 because with mesa 9.2.5 I don't have this
bug

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[Bug 72895] Missing trees in flightgear 2.12.1 with r600 driver and mesa 10.0.1

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=72895

--- Comment #1 from Barto <mister.freeman@laposte.net> ---
Created attachment 91015
  --> https://bugs.freedesktop.org/attachment.cgi?id=91015&action=edit
trees are displayed normally in flightgear 2.12.1

trees are displayed normally in flightgear 2.12.1 at startup

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[Bug 72895] Missing trees in flightgear 2.12.1 with r600 driver and mesa 10.0.1

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=72895

--- Comment #2 from Barto <mister.freeman@laposte.net> ---
Created attachment 91016
  --> https://bugs.freedesktop.org/attachment.cgi?id=91016&action=edit
trees disappear in flightgear 2.12.1 after starting the engine

trees disappear in flightgear 2.12.1 after starting the engine or moving the
plane or changing the point of view

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[Bug 72895] Missing trees in flightgear 2.12.1 with r600 driver and mesa 10.0.1

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https://bugs.freedesktop.org/show_bug.cgi?id=72895

--- Comment #3 from Michel Dänzer <michel@daenzer.net> ---
Can you bisect?

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[Bug 72895] Missing trees in flightgear 2.12.1 with r600 driver and mesa 10.0.1

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https://bugs.freedesktop.org/show_bug.cgi?id=72895

--- Comment #4 from Barto <mister.freeman@laposte.net> ---
I don't know how to do a bissect, but I will try

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[Bug 72895] Missing trees in flightgear 2.12.1 with r600 driver and mesa 10.0.1

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https://bugs.freedesktop.org/show_bug.cgi?id=72895

--- Comment #5 from Barto <mister.freeman@laposte.net> ---
I did a bisect with git,

and the culprit seems to be :

59b01ca252bd6706f08cd80a864819d71dfe741c is the first bad commit
commit 59b01ca252bd6706f08cd80a864819d71dfe741c
Author: Fredrik Höglund <fredrik@kde.org>
Date:   Tue Apr 9 20:54:25 2013 +0200

    mesa: Add ARB_vertex_attrib_binding

    update_array() and update_array_format() are changed to update the new
    attrib and binding states, and the client arrays become derived state.

    Reviewed-by: Eric Anholt <eric@anholt.net>

:040000 040000 e1270491ec1e0f8a98f930a0cf959038a56c4449
d2f6ee337ecbf36f764921474f2c69a67308eafa M      src

you can fin the git log for the bisect in attachment with this message,

the bisect wad doing by setting the first good bissect with the revision 9.2.5
of mesa and the bad bissect with the HEAD revision of mesa mastering ( last
revision on git ),

I hope we have enough clues to fix this bug

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[Bug 72895] Missing trees in flightgear 2.12.1 with r600 driver and mesa 10.0.1

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=72895

--- Comment #6 from Barto <mister.freeman@laposte.net> ---
Created attachment 91114
  --> https://bugs.freedesktop.org/attachment.cgi?id=91114&action=edit
git bisect log

the git bisect log,

# first bad commit: [59b01ca252bd6706f08cd80a864819d71dfe741c] mesa: Add
ARB_vertex_attrib_binding

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[Bug 72895] Missing trees in flightgear 2.12.1 with r600 driver and mesa 10.0.1

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https://bugs.freedesktop.org/show_bug.cgi?id=72895

Michel Dänzer <michel@daenzer.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Assignee|dri-devel@lists.freedesktop |mesa-dev@lists.freedesktop.
                   |.org                        |org
                 CC|                            |fredrik@kde.org
          Component|Drivers/Gallium/r600        |Mesa core

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