Bug#396037: libgl1-mesa-dri: i915 OpenGL severely broken

[Martin Pärtel]

Package: libgl1-mesa-dri
Version: 6.5.1-0.2
Severity: important

OpenGL apps are terribly slow or don't work at all unless
LIBGL_ALWAYS_INDIRECT is set.

e.g. glxgears renders nothing and prints:
"libGL warning: 3D driver claims to not support visual 0x5b
do_wait: drmWaitVBlank returned -1, IRQs don't seem to be working 
correctly.
Try running with LIBGL_THROTTLE_REFRESH and LIBL_SYNC_REFRESH unset."

Celestia works but has major rendering artifacts.

Many OpenGL apps crash the X server either every time (a Qt4/OpenGL 
app of mine) or occasionaly (flurry screensaver). A backtrace from one
of the crashes:

0: /usr/bin/X(xf86SigHandler+0x84) [0x80c4354]
1: [0xffffe420]
2: /usr/lib/xorg/modules/extensions/libglx.so [0xb7c919b7]
3: /usr/lib/dri/i915_dri.so(__driUtilUpdateDrawableInfo+0xeb) 
[0xa7798d5b]
4: /usr/lib/dri/i915_dri.so(intelGetLock+0xde) [0xa77b339e]
5: /usr/lib/dri/i915_dri.so(intelClearWithBlit+0x69d) [0xa77b164d]
6: /usr/lib/dri/i915_dri.so(intelClear+0x133) [0xa77b54e3]
7: /usr/lib/dri/i915_dri.so(_mesa_Clear+0x185) [0xa78f38b5]
8: /usr/lib/xorg/modules/extensions/libglx.so [0xb7c70f38]
9: /usr/lib/xorg/modules/extensions/libglx.so(__glXRender+0xf3) 
[0xb7c68fd3]
10: /usr/lib/xorg/modules/extensions/libglx.so [0xb7c6df6a]
11: /usr/bin/X(Dispatch+0x19b) [0x8086cab]
12: /usr/bin/X(main+0x489) [0x806e699]
13: /lib/tls/libc.so.6(__libc_start_main+0xc8) [0xb7da1ea8]
14: /usr/bin/X(FontFileCompleteXLFD+0xa9) [0x806d9d1]

Fatal server error:
Caught signal 11.  Server aborting


Some other interesting lines from Xorg.log:
....
(WW) AIGLX: 3D driver claims to not support visual 0x23
(WW) AIGLX: 3D driver claims to not support visual 0x24
(WW) AIGLX: 3D driver claims to not support visual 0x25
(WW) AIGLX: 3D driver claims to not support visual 0x26
(WW) AIGLX: 3D driver claims to not support visual 0x27
(WW) AIGLX: 3D driver claims to not support visual 0x28
(WW) AIGLX: 3D driver claims to not support visual 0x29
(WW) AIGLX: 3D driver claims to not support visual 0x2a
(WW) AIGLX: 3D driver claims to not support visual 0x2b
(WW) AIGLX: 3D driver claims to not support visual 0x2c
(WW) AIGLX: 3D driver claims to not support visual 0x2d
(WW) AIGLX: 3D driver claims to not support visual 0x2e
(WW) AIGLX: 3D driver claims to not support visual 0x2f
(WW) AIGLX: 3D driver claims to not support visual 0x30
(WW) AIGLX: 3D driver claims to not support visual 0x31
(WW) AIGLX: 3D driver claims to not support visual 0x32
(II) AIGLX: Loaded and initialized /usr/lib/dri/i915_dri.so
....

Turning off Composite does not help.

There is nothing interesting in dmesg.


Hardware:
Thinkpad T60
Intel Corporation Mobile 945GM/GMS/940GML Express Integrated Graphics 
Controller (rev 03)


-- System Information:
Debian Release: testing/unstable
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: i386 (i686)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.6.17-beyond4
Locale: LANG=en_US, LC_CTYPE=en_US (charmap=ISO-8859-15)

Versions of packages libgl1-mesa-dri depends on:
ii  libc6                        2.3.6.ds1-4 GNU C Library: Shared libraries
ii  libdrm2                      2.0.2-0.1   Userspace interface to kernel DRM 
ii  libexpat1                    1.95.8-3.3  XML parsing C library - runtime li
ii  libgl1-mesa-glx              6.5.1-0.2   A free implementation of the OpenG

libgl1-mesa-dri recommends no packages.

-- no debconf information