[Bug 105807] [Regression, bisected]: 3D Rendering not working correctly in Warhammer 40k: Dawn of War II

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=105807

--- Comment #5 from ben at besd.de <ben at besd.de> ---
Hi Timothy, 
I think you're on the right track but radeonsi git also (still) doesnt work as
of just now.

I get

glXCreateContextAttribsARB(dpy = 0x45623f0, config = 0x46f4a70, share_context =
NULL, direct = True, attrib_list = {GLX_CONTEXT_MAJOR_VERSION_ARB, 4,
GLX_CONTEXT_MINOR_VERSION_ARB, 5, GLX_CONTEXT_PROFILE_MASK_ARB,
GLX_CONTEXT_CORE_PROFILE_BIT_ARB, GLX_CONTEXT_FLAGS_ARB,
GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB,
GLX_CONTEXT_RESET_NOTIFICATION_STRATEGY_ARB, GLX_NO_RESET_NOTIFICATION_ARB, 0})
= 0x4723d10

from the game. It shows the bug.
I dont know how to spot the GLSL version, any pointers?

If I do force the GL version to something like 3.0, 3.1 or 3.1COMPAT or
force MESA_GLSL_VERSION_OVERRIDE=130
I get this 

1187 glXCreateContextAttribsARB(dpy = 0x52213f0, config = 0x53b3a70,
share_context = NULL, direct = True, attrib_list =
{GLX_CONTEXT_MAJOR_VERSION_ARB, 4, GLX_CONTEXT_MINOR_VERSION_ARB, 5,
GLX_CONTEXT_PROFILE_MASK_ARB, GLX_CONTEXT_CORE_PROFILE_BIT_ARB,
GLX_CONTEXT_FLAGS_ARB, GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB,
GLX_CONTEXT_RESET_NOTIFICATION_STRATEGY_ARB, GLX_NO_RESET_NOTIFICATION_ARB, 0})
= NULL
1189 glXCreateContextAttribsARB(dpy = 0x52213f0, config = 0x53b3a70,
share_context = NULL, direct = True, attrib_list =
{GLX_CONTEXT_MAJOR_VERSION_ARB, 4, GLX_CONTEXT_MINOR_VERSION_ARB, 4,
GLX_CONTEXT_PROFILE_MASK_ARB, GLX_CONTEXT_CORE_PROFILE_BIT_ARB,
GLX_CONTEXT_FLAGS_ARB, GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB,
GLX_CONTEXT_RESET_NOTIFICATION_STRATEGY_ARB, GLX_NO_RESET_NOTIFICATION_ARB, 0})
= NULL
1191 glXCreateContextAttribsARB(dpy = 0x52213f0, config = 0x53b3a70,
share_context = NULL, direct = True, attrib_list =
{GLX_CONTEXT_MAJOR_VERSION_ARB, 4, GLX_CONTEXT_MINOR_VERSION_ARB, 3,
GLX_CONTEXT_PROFILE_MASK_ARB, GLX_CONTEXT_CORE_PROFILE_BIT_ARB,
GLX_CONTEXT_FLAGS_ARB, GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB,
GLX_CONTEXT_RESET_NOTIFICATION_STRATEGY_ARB, GLX_NO_RESET_NOTIFICATION_ARB, 0})
= NULL
1193 glXCreateContextAttribsARB(dpy = 0x52213f0, config = 0x53b3a70,
share_context = NULL, direct = True, attrib_list =
{GLX_CONTEXT_MAJOR_VERSION_ARB, 4, GLX_CONTEXT_MINOR_VERSION_ARB, 2,
GLX_CONTEXT_PROFILE_MASK_ARB, GLX_CONTEXT_CORE_PROFILE_BIT_ARB,
GLX_CONTEXT_FLAGS_ARB, GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB,
GLX_CONTEXT_RESET_NOTIFICATION_STRATEGY_ARB, GLX_NO_RESET_NOTIFICATION_ARB, 0})
= NULL
1195 glXCreateContextAttribsARB(dpy = 0x52213f0, config = 0x53b3a70,
share_context = NULL, direct = True, attrib_list =
{GLX_CONTEXT_MAJOR_VERSION_ARB, 4, GLX_CONTEXT_MINOR_VERSION_ARB, 1,
GLX_CONTEXT_PROFILE_MASK_ARB, GLX_CONTEXT_CORE_PROFILE_BIT_ARB,
GLX_CONTEXT_FLAGS_ARB, GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB,
GLX_CONTEXT_RESET_NOTIFICATION_STRATEGY_ARB, GLX_NO_RESET_NOTIFICATION_ARB, 0})
= NULL
1197 glXCreateContextAttribsARB(dpy = 0x52213f0, config = 0x53b3a70,
share_context = NULL, direct = True, attrib_list =
{GLX_CONTEXT_MAJOR_VERSION_ARB, 4, GLX_CONTEXT_MINOR_VERSION_ARB, 0,
GLX_CONTEXT_PROFILE_MASK_ARB, GLX_CONTEXT_CORE_PROFILE_BIT_ARB,
GLX_CONTEXT_FLAGS_ARB, GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB,
GLX_CONTEXT_RESET_NOTIFICATION_STRATEGY_ARB, GLX_NO_RESET_NOTIFICATION_ARB, 0})
= NULL
1199 glXCreateContextAttribsARB(dpy = 0x52213f0, config = 0x53b3a70,
share_context = NULL, direct = True, attrib_list =
{GLX_CONTEXT_MAJOR_VERSION_ARB, 3, GLX_CONTEXT_MINOR_VERSION_ARB, 3,
GLX_CONTEXT_PROFILE_MASK_ARB, GLX_CONTEXT_CORE_PROFILE_BIT_ARB,
GLX_CONTEXT_FLAGS_ARB, GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB,
GLX_CONTEXT_RESET_NOTIFICATION_STRATEGY_ARB, GLX_NO_RESET_NOTIFICATION_ARB, 0})
= NULL
1201 glXCreateContextAttribsARB(dpy = 0x52213f0, config = 0x53b3a70,
share_context = NULL, direct = True, attrib_list =
{GLX_CONTEXT_MAJOR_VERSION_ARB, 3, GLX_CONTEXT_MINOR_VERSION_ARB, 2,
GLX_CONTEXT_PROFILE_MASK_ARB, GLX_CONTEXT_CORE_PROFILE_BIT_ARB,
GLX_CONTEXT_FLAGS_ARB, GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB,
GLX_CONTEXT_RESET_NOTIFICATION_STRATEGY_ARB, GLX_NO_RESET_NOTIFICATION_ARB, 0})
= NULL
1203 glXCreateContextAttribsARB(dpy = 0x52213f0, config = 0x53b3a70,
share_context = NULL, direct = True, attrib_list =
{GLX_CONTEXT_MAJOR_VERSION_ARB, 3, GLX_CONTEXT_MINOR_VERSION_ARB, 1,
GLX_CONTEXT_PROFILE_MASK_ARB, GLX_CONTEXT_CORE_PROFILE_BIT_ARB,
GLX_CONTEXT_FLAGS_ARB, GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB,
GLX_CONTEXT_RESET_NOTIFICATION_STRATEGY_ARB, GLX_NO_RESET_NOTIFICATION_ARB, 0})
= 0x554b1f0

(forcing FC seems to screw up the loader). And then the game works.

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