[Bug 103902] Portal 2 game hangs at startup with latest mesa dev

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=103902

            Bug ID: 103902
           Summary: Portal 2 game  hangs at startup   with latest mesa dev
           Product: DRI
           Version: XOrg git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/AMDgpu
          Assignee: dri-devel at lists.freedesktop.org
          Reporter: fin4478 at hotmail.com

When using either Padoka ppa or Oibaf ppa Mesa dev, the Portal 2 game only
opens a black screen. If you use the -windowed parameter it will open a black
window. Portal 2 game is not as well implemented as Team Fortress 2 (Valve
Source engine game too) that works fine. Last messages before hang in
~/.steam/error.log:

CSoundEmitterSystemBase::BaseInit: Manifest 'scripts/game_sounds_manifest.txt'
with bogus file type 'new_sound_scripts_must_go_below_here', expecting
'declare_file' or 'precache_file'

Convar r_flashlightscissor has conflicting FCVAR_CHEAT flags (child: no
FCVAR_CHEAT, parent: has FCVAR_CHEAT, parent wins)

I have uninstalled and installed the game several times, no help. Portal 2 does
work with the Debian testing Mesa:
xfce at ryzen5pc:~/Documents$ glxinfo| grep OpenGL
OpenGL vendor string: X.Org
OpenGL renderer string: AMD POLARIS11 (DRM 3.19.0 / 4.14.0, LLVM 5.0.0)
OpenGL core profile version string: 4.5 (Core Profile) Mesa 17.2.5


I managed to run the game with Padoka ppa one day when I purchased it. Next day
after installing the Sanctum 2 game Portal 2 did not work anymore.
OpenGL: renderer: AMD POLARIS11 (DRM 3.19.0 / 4.14.0, LLVM 6.0.0)
version: 4.5 Mesa 17.4.0-devel - padoka PPA

>From the Portal 2 game point of view, there might be some regression in Mesa.
My system:
xfce at ryzen5pc:~$ inxi -GSCM
System:    Host: ryzen5pc Kernel: 4.14.0 x86_64 bits: 64 Desktop: Xfce 4.12.4
           Distro: Debian GNU/Linux buster/sid
Machine:   Device: desktop Mobo: ASUSTeK model: PRIME B350M-K v: Rev X.0x
serial: N/A
           UEFI [Legacy]: American Megatrends v: 0902 date: 09/08/2017
CPU:       Hexa core AMD Ryzen 5 1600 Six-Core (-HT-MCP-) cache: 3072 KB
           clock speeds: max: 3193 MHz 1: 3193 MHz 2: 3193 MHz 3: 3193 MHz
           4: 3193 MHz 5: 3193 MHz 6: 3193 MHz 7: 3193 MHz 8: 3193 MHz
           9: 3193 MHz 10: 3193 MHz 11: 3193 MHz 12: 3193 MHz
Graphics:  Card: Advanced Micro Devices [AMD/ATI] Baffin [Polaris11]
           Display Server: x11 (X.Org 1.19.5 )
           drivers: ati,amdgpu (unloaded: modesetting,fbdev,vesa,radeon)
           Resolution: 1920x1080 at 60.00hz
           OpenGL: renderer: AMD POLARIS11 (DRM 3.19.0 / 4.14.0, LLVM 5.0.1)
           version: 4.5 Mesa 17.4.0-devel

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