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[Mirco Müller <mirco.mueller@xxxxxxxxxxxxx>]

Public bug reported:

Binary package hint: libgl1-mesa-dri

When trying to start any OpenGL-based program it immediately crashes
with the output on stdout:

"brw_misc_state.c:290: emit_depthbuffer: Assertion 'region->tiling != 1'
failed."

This is on a Lenovo X61 tablet/notebook with a i965 chipset (GPU: intel
GMA X3100). The affected file comes from
mesa/drivers/dri/i965/brw_misc_state.c

The package in question is libgl1-mesa-dri 7.8.1-3ubuntu2

Tried it with these programs, which all fail with the same error stated above:
* glxgears
* compiz
* mutter
* unity (as mutter-plugin)
--- 
Architecture: i386
DRM.card0.LVDS.1:
 status: connected
 enabled: enabled
 dpms: On
 modes: 1400x1050
 edid-base64: AP///////wAwrgVAAAAAAAAQAQOAGRJ46q9AlVZKjyUgUFQhCACBgAEBAQEBAQEBAQEBAQEBICF4yFAaCkAUdCUA9bgAAAAZAAAAEAAAAAAAAAAAAAAAAAAAAAAADwCQQzIAAAATAgAJ5QAAAAAA/gBIVjEyMVAwMS0xMDEKAHU=
DRM.card0.VGA.1:
 status: disconnected
 enabled: disabled
 dpms: On
 modes: 
 edid-base64:
DistroRelease: Ubuntu 10.10
DkmsStatus: Error: [Errno 2] No such file or directory
MachineType: LENOVO 776294G
Package: mesa (not installed)
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   3.3V 32-bit PC Card
ProcCmdLine: root=UUID=952f1c9d-c055-4f91-9758-f9271a584377 ro quiet splash
ProcEnviron:
 PATH=(custom, user)
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.35-8.13-generic 2.6.35-rc5
Tags: maverick maverick
Uname: Linux 2.6.35-8-generic i686
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
dmi.bios.date: 07/03/2007
dmi.bios.vendor: LENOVO
dmi.bios.version: 7SET18WW (1.04 )
dmi.board.name: 776294G
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr7SET18WW(1.04):bd07/03/2007:svnLENOVO:pn776294G:pvrThinkPadX61Tablet:rvnLENOVO:rn776294G:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 776294G
dmi.product.version: ThinkPad X61 Tablet
dmi.sys.vendor: LENOVO
system:
 distro:             Ubuntu
 codename:           maverick
 architecture:       i686
 kernel:             2.6.35-8-generic

** Affects: mesa (Ubuntu)
     Importance: High
         Status: New


** Tags: apport-collected

** Changed in: mesa (Ubuntu)
   Importance: Undecided => High

** Changed in: mesa (Ubuntu)
    Milestone: None => maverick-alpha-3

-- 
every OpenGL-program crashes on intel GMA X3100 (failed assertion "region->tiling != 1")
https://bugs.launchpad.net/bugs/605825
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