[Mesa-dev] [Bug 102017] Wrong colours in Cities Skyline

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=102017

--- Comment #17 from Thomas Jollans  ---
Thanks everyone for looking into this. I can confirm that the issue was a
missing libtxc_dxtn for me too.

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[Mesa-dev] [Bug 102017] Wrong colours in Cities Skyline

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=102017

Timothy Arceri  changed:

   What|Removed |Added

 Resolution|--- |NOTABUG
 Status|NEW |RESOLVED

--- Comment #16 from Timothy Arceri  ---
Hopefully we can enable this but default soon, as far as I can tell the patent
only has just over a month til it expires \o/

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[Mesa-dev] [Bug 102017] Wrong colours in Cities Skyline

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https://bugs.freedesktop.org/show_bug.cgi?id=102017

--- Comment #15 from Marcin Gałązka  ---
@Gert - great catch! It seems that Steam provided via official Ubuntu/Canonical
repos depends on libtxc-dxtn-s2tc:i386 only so one need to install
libtxc-dxtn-s2tc:amd64 manually. See
https://bugs.launchpad.net/ubuntu/+source/steam/+bug/1684755,
https://github.com/ValveSoftware/Dota-2/issues/1213 for some more details.

After installing amd64 package the game appears to look fine. I suppose that we
can close this issue. (?)

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[Mesa-dev] [Bug 102017] Wrong colours in Cities Skyline

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https://bugs.freedesktop.org/show_bug.cgi?id=102017

--- Comment #14 from Gert Wollny  ---
Maybe you're missing libtxc_dxtn? According to the glxinfo the dxt* texture
compression extensions are not available.

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[Mesa-dev] [Bug 102017] Wrong colours in Cities Skyline

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https://bugs.freedesktop.org/show_bug.cgi?id=102017

--- Comment #13 from MWATTT  ---
I definitively can't reproduce this bug, even with Ubuntu 17.04 stock mesa. It
might be specific to some high end cards. Which game settings do you use?

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[Mesa-dev] [Bug 102017] Wrong colours in Cities Skyline

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https://bugs.freedesktop.org/show_bug.cgi?id=102017

--- Comment #12 from Timothy Arceri  ---
(In reply to Thomas Jollans from comment #9)
> I'm having the same issue, with Ubuntu 17.04 stock mesa and r600 (HD 6870)
> 
> It looks to me like an issue with textures not being drawn; Everything is
> displayed with nice reflective surfaces. In the in-game data views (where
> most surfaces are blank), the colours are largely fine, but there are some
> glitches in details (e.g. water, road bridges). 
> 
> I've just upgraded from Ubuntu 16.04 LTS. Before the upgrade, everything
> worked beautifully with the same game version.

If you can figure out which version of Mesa is used by 16.04 LTS and 17.04, I
would suggest doing a git bisect to find the change that broke things.
Bisecting the commit will greatly increase the chance of this being fixed.

Feel free to ask for help on the #dri-devel freenode channel if you need
assistance.

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[Mesa-dev] [Bug 102017] Wrong colours in Cities Skyline

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https://bugs.freedesktop.org/show_bug.cgi?id=102017

--- Comment #11 from Thomas Jollans  ---
Created attachment 133679
  --> https://bugs.freedesktop.org/attachment.cgi?id=133679=edit
in-game data view has correct colours

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[Mesa-dev] [Bug 102017] Wrong colours in Cities Skyline

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https://bugs.freedesktop.org/show_bug.cgi?id=102017

--- Comment #10 from Thomas Jollans  ---
Created attachment 133678
  --> https://bugs.freedesktop.org/attachment.cgi?id=133678=edit
in-game screenshot: blank surfaces

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[Mesa-dev] [Bug 102017] Wrong colours in Cities Skyline

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https://bugs.freedesktop.org/show_bug.cgi?id=102017

--- Comment #9 from Thomas Jollans  ---
I'm having the same issue, with Ubuntu 17.04 stock mesa and r600 (HD 6870)

It looks to me like an issue with textures not being drawn; Everything is
displayed with nice reflective surfaces. In the in-game data views (where most
surfaces are blank), the colours are largely fine, but there are some glitches
in details (e.g. water, road bridges). 

I've just upgraded from Ubuntu 16.04 LTS. Before the upgrade, everything worked
beautifully with the same game version.

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[Mesa-dev] [Bug 102017] Wrong colours in Cities Skyline

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https://bugs.freedesktop.org/show_bug.cgi?id=102017

--- Comment #8 from Marcin Gałązka  ---
@Kenneth UNITY_DISABLE_GRAPHICS_DRIVER_WORKAROUNDS=yes didn't help
unfortunately. (I tried it before IIRC).

@MWATTT R600_DEBUG=nosb didn't change anything as well.

@Gert The game requires Steam, so I cannot run it 'fully' from command line. I
run 'steam' from the terminal and then start the game inside Steam. IIRC for
other games it used to print game-related messages, but I cannot guarantee that
the output isn't redirected in some way. Anyway I cannot see any messages that
could help with the problem.

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[Mesa-dev] [Bug 102017] Wrong colours in Cities Skyline

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https://bugs.freedesktop.org/show_bug.cgi?id=102017

--- Comment #7 from Kenneth Graunke  ---
You might also want to try with UNITY_DISABLE_GRAPHICS_DRIVER_WORKAROUNDS=yes -
Cities Skylines has broken in the past due to bugs in Unity (which were fixed
in a newer version of the engine, but the game hadn't updated yet).

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[Mesa-dev] [Bug 102017] Wrong colours in Cities Skyline

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https://bugs.freedesktop.org/show_bug.cgi?id=102017

--- Comment #6 from MWATTT  ---
This game always worked fine for me with an HD 5770, and is still OK with Oibaf
PPA. It was also OK with an HD 4850.
The problem might be specific to Cayman.

Can you try running the game with the environement variable "R600_DEBUG=nosb"?

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[Mesa-dev] [Bug 102017] Wrong colours in Cities Skyline

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https://bugs.freedesktop.org/show_bug.cgi?id=102017

--- Comment #5 from Gert Wollny  ---
Can you also run the game from the command line and see whether there are any
error messages, specifically whether you get any messages saying something like 

  r600_shader_select - Failed to build shader variant (type=1) -1
  r600_shader.c:183 r600_pipe_shader_create - translation from TGSI failed !

In this case it might be a duplicate of 

  https://bugs.freedesktop.org/show_bug.cgi?id=99349

Best, 
Gert

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[Mesa-dev] [Bug 102017] Wrong colours in Cities Skyline

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https://bugs.freedesktop.org/show_bug.cgi?id=102017

--- Comment #4 from Marcin Gałązka  ---
Created attachment 133209
  --> https://bugs.freedesktop.org/attachment.cgi?id=133209=edit
Dump from lspci (gfx only)

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[Mesa-dev] [Bug 102017] Wrong colours in Cities Skyline

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https://bugs.freedesktop.org/show_bug.cgi?id=102017

--- Comment #3 from Marcin Gałązka  ---
Created attachment 133208
  --> https://bugs.freedesktop.org/attachment.cgi?id=133208=edit
Dump from glxinfo

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[Mesa-dev] [Bug 102017] Wrong colours in Cities Skyline

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https://bugs.freedesktop.org/show_bug.cgi?id=102017

--- Comment #2 from Marcin Gałązka  ---
Created attachment 133207
  --> https://bugs.freedesktop.org/attachment.cgi?id=133207=edit
Screenshot from menu

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[Mesa-dev] [Bug 102017] Wrong colours in Cities Skyline

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=102017

--- Comment #1 from Marcin Gałązka  ---
Created attachment 133206
  --> https://bugs.freedesktop.org/attachment.cgi?id=133206=edit
Screenshot from game

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[Mesa-dev] [Bug 102017] Wrong colours in Cities Skyline

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https://bugs.freedesktop.org/show_bug.cgi?id=102017

Bug ID: 102017
   Summary: Wrong colours in Cities Skyline
   Product: Mesa
   Version: git
  Hardware: x86-64 (AMD64)
OS: Linux (All)
Status: NEW
  Severity: normal
  Priority: medium
 Component: Mesa core
  Assignee: mesa-dev@lists.freedesktop.org
  Reporter: marcin.r.gala...@gmail.com
QA Contact: mesa-dev@lists.freedesktop.org

Colours in Cities Skyline are really wrong, see attached screenshots. A weird
thing is that the main menu has a black background - compare with
http://www.wsgf.org/f/u/imagecache/node-gallery-display/contrib/dr/28660/menu_21x9.jpg.
The same happens for map loading screens.

I use Ubuntu 17.04 with Obaif PPA, so I have more or less Git Mesa. See
attached output from glxinfo. The game is run from Steam. I tried to use stock
Ubuntu Mesa, but IIRC the result was the same.

My graphics card is Saphire Radeon HD 6950. A dump from lspci for the graphics
card is attached.

BTW - Since I have 2 identical graphics card and the second one sits unused -
if any Mesa developer is interested I can donate one card. Not necessarily in
the context of fixing this bug (would be nice though), but if it would help
with further development of r600 driver - just let me know.

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