[Bug 48455] New: Enabling R600_STREAMOUT causes graphical corruption

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=48455

             Bug #: 48455
           Summary: Enabling R600_STREAMOUT causes graphical corruption
    Classification: Unclassified
           Product: Mesa
           Version: git
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: Drivers/DRI/R600
        AssignedTo: dri-devel at lists.freedesktop.org
        ReportedBy: me at BaloneyGeek.com


I use Mesa from Git (on an Arch Linux box), and build a new copy weekly. Since
the last two weeks, keeping R600_STREAMOUT enabled in my /etc/environment file
leads to severe graphical corruption (the screen is completely garbled), making
it unusable on my Gnome 3 based system. Both GDM and GNOME-Shell exhibit this
corruption, making it impossible to conduct tests on the system.

Here are some relevant outputs:

/etc/environment:
LIBGL_DRIVERS_PATH=/opt/mesa-master/lib/xorg/modules/dri
VDPAU_DRIVER=r600
R600_GLSL130=1
#R600_STREAMOUT=1

Keeping the last line enabled causes issues. Also, uname -a:

Linux bg14ina-laptop 3.3.1-2-ck #1 SMP PREEMPT Thu Apr 5 18:01:36 EDT 2012
x86_64 Intel(R) Core(TM)2 Duo CPU T6670 @ 2.20GHz GenuineIntel GNU/Linux

glxinfo | grep -i opengl:

OpenGL vendor string: X.Org
OpenGL renderer string: Gallium 0.4 on AMD RV710
OpenGL version string: 2.1 Mesa 8.1-devel (git-c653287)
OpenGL shading language version string: 1.30

Relevant line from lspci:01:00.0 VGA compatible controller: Advanced Micro
Devices [AMD] nee ATI RV710 [Mobility Radeon HD 4300 Series]

The card is a 512 MB ATI Mobility Radeon HD4330, (VID:PID = 1002:9552)

Other software versions are:
xorg-server 1.12.0.901-1
xf86-video-ati 6.14.4-2
libdrm 2.4.33-1
libtxc_dxtn 1.0.1-2

The flags to configure when building Mesa from git:

./configure --prefix=/opt/mesa-master
--with-dri-driverdir=/opt/mesa-master/lib/xorg/modules/dri
--with-gallium-drivers=r300,r600,swrast --with-dri-drivers=swrast
--enable-texture-float --enable-glx-tls --enable-xcb --enable-shared-dricore
--enable-gbm --enable-gallium-gbm --enable-xvmc --enable-vdpau
--enable-gallium-g3dvl --enable-osmesa --enable-xorg --enable-shared-glapi
--enable-gles1 --enable-gles2 --enable-openvg --enable-gallium-egl

If there's anything else I can post, please let me know.

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