[Mesa-dev] [Bug 84570] New: Borderlands 2: Framerate drops dramatically with dynamic lighting activated

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=84570

            Bug ID: 84570
           Summary: Borderlands 2: Framerate drops dramatically with
                    dynamic lighting activated
           Product: Mesa
           Version: git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Mesa core
          Assignee: mesa-dev at lists.freedesktop.org
          Reporter: kai at dev.carbon-project.org

Running Borderlands 2 with the option "DynamicLights" set to true, causes
constant frame rate drops (GALLIUM_HUD=fps shows ~30 as the usual lower end,
when there are many new objects, it drops to single digit numbers), when new
objects come into the visible area, ie. you see a new enemy or a team mate is
running into your LOS. After a second or so, you're back to ~40-60 FPS.

I'm seeing this on (Debian testing as a base):
GPU: Hawaii PRO [Radeon R9 290] (ChipID = 0x67b1)
Mesa: Git:master/5ccdc23a86
libdrm: Git:master/00847fa48b
LLVM: SVN:trunk/r218506 (3.6 devel)
X.Org: 2:1.16.1-1
Linux: Git:~agdf5/linux:drm-next-3.17-rebased-on-fixes:fa78380797 (calls itself
3.16-rc6)
Firmware: <http://people.freedesktop.org/~agd5f/radeon_ucode/>
> 9e05820da42549ce9c89d147cf1f8e19  /lib/firmware/updates/3.16.0-rc6-citadel/radeon/hawaii_ce.bin
> c8bab593090fc54f239c8d7596c8d846  /lib/firmware/updates/3.16.0-rc6-citadel/radeon/hawaii_mc.bin
> 3618dbb955d8a84970e262bb2e6d2a16  /lib/firmware/updates/3.16.0-rc6-citadel/radeon/hawaii_me.bin
> c000b0fc9ff6582145f66504b0ec9597  /lib/firmware/updates/3.16.0-rc6-citadel/radeon/hawaii_mec.bin
> 0643ad24b3beff2214cce533e094c1b7  /lib/firmware/updates/3.16.0-rc6-citadel/radeon/hawaii_pfp.bin
> ba6054b7d78184a74602fd81607e1386  /lib/firmware/updates/3.16.0-rc6-citadel/radeon/hawaii_rlc.bin
> 11288f635737331b69de9ee82fe04898  /lib/firmware/updates/3.16.0-rc6-citadel/radeon/hawaii_sdma.bin
> 284429675a5560e0fad42aa982965fc2  /lib/firmware/updates/3.16.0-rc6-citadel/radeon/hawaii_smc.bin
libclc: Git:master/5b48f170c8
DDX: Git:master/fbf575cb01 + Patch from
<http://lists.x.org/archives/xorg-driver-ati/2014-August/026534.html>

But according to Aspyr (the developer of the Linux port), this is also a
problem with the Intel driver (see
<http://steamcommunity.com/app/49520/discussions/0/616189106749909144/#c616189742697847998>),
therefore I selected Mesa Core as the component.

Let me know, if you need anything else to debug this.

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