Bug#532980: libgl1-mesa-dri: some games crash at the start

[Przemek Borowski <boorasek@gmail.com>]

Package: libgl1-mesa-dri
Version: 7.4.1-1
Severity: important
Tags: patch

I encountered this problem in enemy territory, but as far as I know it also appears with quake3 
(and probably all games on q3 engine). Here is log from et:

X Error of failed request: BadMatch (invalid parameter attributes)
  Major opcode of failed request: 1
  Minor opcode of failed request: 0
  Serial number of failed request: 39
X Error of failed request: BadWindow (invalid Window parameter)
  Major opcode of failed request: 18
  Minor opcode of failed request: 0
  Serial number of failed request: 40
X Error of failed request: BadWindow (invalid Window parameter)
  Major opcode of failed request: 18
  Minor opcode of failed request: 0
  Serial number of failed request: 41
X Error of failed request: BadWindow (invalid Window parameter)
  Major opcode of failed request: 8
  Minor opcode of failed request: 0
  Serial number of failed request: 42
X Error of failed request: BadWindow (invalid Window parameter)
  Major opcode of failed request: 12
  Minor opcode of failed request: 0
  Serial number of failed request: 43
X Error of failed request: BadWindow (invalid Window parameter)
  Major opcode of failed request: 18
  Minor opcode of failed request: 0
  Serial number of failed request: 46
X Error of failed request: BadDrawable (invalid Pixmap or Window parameter)
  Major opcode of failed request: 128
  Minor opcode of failed request: 7
  Serial number of failed request: 51
X Error of failed request: BadValue (integer parameter out of range for operation)
  Major opcode of failed request: 153
  Minor opcode of failed request: 26
  Serial number of failed request: 51
Segmentation fault

I found probable solution (but i didn't check it) at:

https://bugs.freedesktop.org/show_bug.cgi?id=21653

diff --git a/src/mesa/drivers/dri/radeon/radeon_screen.c b/src/mesa/drivers/dri/radeon/radeon_screen.c
index 791f598..a977bed 100644
--- a/src/mesa/drivers/dri/radeon/radeon_screen.c
+++ b/src/mesa/drivers/dri/radeon/radeon_screen.c
@@ -283,12 +283,12 @@ radeonFillInModes( __DRIscreenPrivate *psp,
      * with a stencil buffer.  It will be a sw fallback, but some apps won't
      * care about that.
      */
-    stencil_bits_array[0] = 0;
+    stencil_bits_array[0] = stencil_bits;
     stencil_bits_array[1] = (stencil_bits == 0) ? 8 : stencil_bits;
 
     msaa_samples_array[0] = 0;
 
-    depth_buffer_factor = ((depth_bits != 0) || (stencil_bits != 0)) ? 2 : 1;
+    depth_buffer_factor = (stencil_bits == 0) ? 2 : 1;
     back_buffer_factor  = (have_back_buffer) ? 2 : 1;
 
     if (pixel_bits == 16) {




-- System Information:
Debian Release: squeeze/sid
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: i386 (i686)

Kernel: Linux 2.6.29-2-686 (SMP w/1 CPU core)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages libgl1-mesa-dri depends on:
ii  libc6                         2.9-13     GNU C Library: Shared libraries
ii  libdrm-intel1                 2.4.11-1   Userspace interface to intel-speci
ii  libdrm2                       2.4.11-1   Userspace interface to kernel DRM 
ii  libexpat1                     2.0.1-4    XML parsing C library - runtime li

libgl1-mesa-dri recommends no packages.

Versions of packages libgl1-mesa-dri suggests:
pn  libglide3                     <none>     (no description available)

-- no debconf information