[Bug 104744] [r600] Total War: Warhammer black textures and flickering.

[Bug 104744] [r600] Total War: Warhammer black textures and flickering.

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=104744

            Bug ID: 104744
           Summary: [r600] Total War: Warhammer black textures and
                    flickering.
           Product: Mesa
           Version: git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/r600
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: freedesktop@lanig.email
        QA Contact: dri-devel@lists.freedesktop.org

A friend of mine installed Ubuntu to play the non-cross-platform game Total
War: Warhammer with me.
Unfortunately he had issues with black empty spaces where textures should be.
But it worked for me without any issues with RadeonSI(RX 480).
Then I recommended adding the Padoka PPA and to update the system.

That was a big fail. As a reward he also got heavy flickering additionally. He
also mentioned weird colors where the black missing textures were before with
activated graphics options.
So I would like to report mainly that the current version seems to be worse
than the one delivered with Ubuntu, at least for this particular game.

He can't really provide further help and I can't access the system in any way.
But I hope that an r600 developer who owns such GPU could hopefully have a look
in the issue.

His System:
Ubuntu 17.10
Intel Core i5 2500
AMD Radeon HD 6950 2GiB
16 GiB RAM

Thanks anyway to whoever reads this - these GPUs might be old but such
occurrences don't make a good impression at all to people who are trying out
Linux.

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[Bug 104744] [r600] Total War: Warhammer black textures and flickering.

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https://bugs.freedesktop.org/show_bug.cgi?id=104744

--- Comment #1 from Roland Scheidegger <sroland@vmware.com> ---
There is probably a reason why the game requirements state rx480 as a
minimum... Even on macs its says amd cards newer than 2014, which excludes
everything pre-gcn.
I wouldn't be surprised at all if it actually fails due to the number of
supported texture units, there are definitely games out there which require
more than what pre-gcn hw can do. (With d3d10 apps can use 16 samplers and 128
resources, but with GL since resources and samplers aren't separated they are
restricted to whatever the hw can do for samplers for resources too, which is
32 for newer hw (actually there's no hw limit but that's the limit just about
every gl driver from any vendor will support), but pre-gcn chips can only do
18.)
This would be mostly unfixable (well technically it would be fixable using some
real ugly and complex hacks trying to deduplicate samplers but I doubt anyone
will ever implement it).
Albeit this is just a wild guess, it's possible there's legitimate driver bugs
which cause it to misrender.

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[Bug 104744] [r600] Total War: Warhammer black textures and flickering.

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https://bugs.freedesktop.org/show_bug.cgi?id=104744

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

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

--- Comment #2 from GitLab Migration User <gitlab-migration@fdo.invalid> ---
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been
closed from further activity.

You can subscribe and participate further through the new bug through this link
to our GitLab instance: https://gitlab.freedesktop.org/mesa/mesa/issues/624.

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