Nouveau - Nov 2012 - [Bug 56757] New: [regression][bisected][screenshots] nvfx -> nv30 driver rework causes regression in UrbanTerror4.2 (beta5)

https://bugs.freedesktop.org/show_bug.cgi?id=56757

          Priority: medium
            Bug ID: 56757
          Assignee: nouveau at lists.freedesktop.org
           Summary: [regression][bisected][screenshots] nvfx -> nv30
                    driver rework causes regression in UrbanTerror4.2
                    (beta5)
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: ronald645 at gmail.com
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: unspecified
         Component: Drivers/DRI/nouveau
           Product: Mesa

The fairly recent nvfx -> nv30 driver rework causes a regression in
UrbanTerror
4.2 (beta 5). I have not been able to test other beta's or games.

The card identifies itself as:

01:00.0 VGA compatible controller: NVIDIA Corporation G73 [GeForce 7300 GT]
(rev a1) (prog-if 00 [VGA controller])
    Subsystem: ASUSTeK Computer Inc. Device 820e
01:00.0 0300: 10de:0393 (rev a1) (prog-if 00 [VGA controller])
    Subsystem: 1043:820e

[    0.312762] nouveau  [  DEVICE][0000:01:00.0] Chipset: G73 (NV4B)
[    0.312764] nouveau  [  DEVICE][0000:01:00.0] Family : NV40

The problem, is that exactly after the 'big change' the gamescreen loads
partially. I have screenshosts attached.

The game itself seems to work fine, but almost 75% to 90% of the loading screen
is still on top of it. The first glitches appear during loading. After the game
has loaded the map, then it seems that the screen 'rips'. Again check
the
screenshots for this. This behaviour only occurs on some maps, not all. Some of
them:

- Kingdom
- Cascade
- Bohemia
- Oildepot
- Maybe more...

The way the screen 'distorts' differs per map or per game setting.
Sometimes
it's a only a triangular shape on the top left upper corner of the game that
is
visible. So it doesn't have to be across the entire screen.

The tested git versions are:

bad
mesa: f2509df95cd1d055e91b1558c5d9c5a935067d78
libdrm: 292da616fe1f936ca78a3fa8e1b1b19883e343b6

good
mesa: 1f2b53945115f9b54933af1412d3cc0eb16a877f (5 commits difference)
libdrm: 0d6350002d74848dd3d1e4d28d514a7ac9d580c9 (1 commit difference)

Testing latest git of mesa and libdrm did not fix the problem.

I could not test a single commit since the rework seems to take up several
patches. I.e. removing and adding the new 3D driver is done in two seperate
patches as is porting to libdrm2.0 which depends on this. So in order to test
this without building errors I had to skip 5 patches instead of 1
unfortunately.

I have attached several logs and screenshots that will hopefully help you
further.

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--- Comment #1 from Ronald <ronald645 at gmail.com> ---
Created attachment 69534
  --> https://bugs.freedesktop.org/attachment.cgi?id=69534&action=edit
UrbanTerror log with corrupted screen

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--- Comment #2 from Ronald <ronald645 at gmail.com> ---
Created attachment 69535
  --> https://bugs.freedesktop.org/attachment.cgi?id=69535&action=edit
UrbanTerror log with correct screen

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--- Comment #3 from Ronald <ronald645 at gmail.com> ---
Created attachment 69536
  --> https://bugs.freedesktop.org/attachment.cgi?id=69536&action=edit
Difference between UrbanTerror logs for your viewing convenience

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--- Comment #4 from Ronald <ronald645 at gmail.com> ---
P.S. Please note the Mesa errors in the 'bad' log.

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--- Comment #5 from Ronald <ronald645 at gmail.com> ---
Created attachment 69537
  --> https://bugs.freedesktop.org/attachment.cgi?id=69537&action=edit
Loading screen, correct up to this point

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--- Comment #6 from Ronald <ronald645 at gmail.com> ---
Created attachment 69538
  --> https://bugs.freedesktop.org/attachment.cgi?id=69538&action=edit
Loading screen, text shows first sign of corruption

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--- Comment #7 from Ronald <ronald645 at gmail.com> ---
Created attachment 69539
  --> https://bugs.freedesktop.org/attachment.cgi?id=69539&action=edit
Loading screen, text corrupted progress never goes past this point

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--- Comment #8 from Ronald <ronald645 at gmail.com> ---
Created attachment 69540
  --> https://bugs.freedesktop.org/attachment.cgi?id=69540&action=edit
In game, 80% of screen unusable, game itself seems fine though

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Ronald <ronald645 at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #69539|0                           |1
        is obsolete|                            |

--- Comment #9 from Ronald <ronald645 at gmail.com> ---
Created attachment 69541
  --> https://bugs.freedesktop.org/attachment.cgi?id=69541&action=edit
Loading screen, text corrupted progress never goes past this point

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Ronald <ronald645 at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #69540|0                           |1
        is obsolete|                            |

--- Comment #10 from Ronald <ronald645 at gmail.com> ---
Created attachment 69542
  --> https://bugs.freedesktop.org/attachment.cgi?id=69542&action=edit
In game, 80% of screen unusable, game itself seems fine though

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--- Comment #11 from Ronald <ronald645 at gmail.com> ---
Created attachment 69543
  --> https://bugs.freedesktop.org/attachment.cgi?id=69543&action=edit
In game, 80% of screen unusable, game itself seems fine though note that
loading screen still changes during gameplay

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--- Comment #12 from Ronald <ronald645 at gmail.com> ---
I have a seperate Mesa + libdrm git tree ready to quickly test patches. This is
all I can do for now.

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--- Comment #13 from Emil Velikov <emil.l.velikov at gmail.com> ---
Can you attach your dmesg in both cases - nvfx & nv30

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--- Comment #14 from Ronald <ronald645 at gmail.com> ---
No additional output in dmesg. Care to eleborate on the 'nvfx &
nv30' part? I'm
booting the same kernel just different mesa/libdrm versions.

Will it help to increase the kernels verbosity? Is that useful?

I'm attaching a dmesg though...

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--- Comment #15 from Ronald <ronald645 at gmail.com> ---
Created attachment 69559
  --> https://bugs.freedesktop.org/attachment.cgi?id=69559&action=edit
Dmesg of used kernel (3.7-rc4 + nouveau (which enables zcomp))

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--- Comment #16 from Emil Velikov <emil.l.velikov at gmail.com> ---
In some cases different versions of mesa can use different output - errors in
dmesg

Here it's not the case

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--- Comment #17 from Ronald <ronald645 at gmail.com> ---
Ow I see, I used environment variables to redirect output in the logfiles.

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Ilia Mirkin <imirkin at alum.mit.edu> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[regression][bisected][scre |[NV42/NV30 gallium]
                   |enshots] nvfx -> nv30       |UrbanTerror4.2 gets parts
                   |driver rework causes        |of images cut off
                   |regression in               |
                   |UrbanTerror4.2 (beta5)      |

--- Comment #18 from Ilia Mirkin <imirkin at alum.mit.edu> ---
Just tested this out on NV42 with mesa ~9.2, and just clicking on "start
server" which brings up a settings screen shows half the settings cut off
at
the bottom.

This ends up triggering the "swizzled and linear textures at the same
time"
problem I've seen before, but I don't know if it's directly related
-- that
tends to just not show textures at all/show stale data rather than cutting
stuff off.

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--- Comment #19 from Ronald <ronald645 at gmail.com> ---
This card did die on me btw, will have to reproduce with another one. Would you
like me to test another card? (fairly recent, forgot it's codename)

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--- Comment #20 from Ilia Mirkin <imirkin at alum.mit.edu> ---
I have a few nv3x/nv4x cards, so I'll keep this open. I suspect that if
it's a
recent card, UrbanTerror will work just fine for you.

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Papamatti <matti_lx at yahoo.de> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           See Also|                            |https://bugs.freedesktop.or
                   |                            |g/show_bug.cgi?id=54155

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Papamatti <matti_lx at yahoo.de> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           See Also|https://bugs.freedesktop.or |
                   |g/show_bug.cgi?id=54155     |

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GitLab Migration User <gitlab-migration at fdo.invalid> changed:

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

--- Comment #21 from GitLab Migration User <gitlab-migration at
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-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been
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You can subscribe and participate further through the new bug through this link
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