After install mesa from proposed, the problem solved for me (no more crashes.
Verification done. ** Tags removed: verification-needed ** Tags added: verification-done -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to mesa in Ubuntu. https://bugs.launchpad.net/bugs/952896 Title: compiz crashed with SIGSEGV in intel_miptree_release() (Fixed in 8.0.3) Status in Mesa: Unknown Status in “mesa” package in Ubuntu: Fix Released Status in “mesa” source package in Precise: Fix Committed Status in “mesa” source package in Quantal: Fix Released Bug description: Just connected a second screen. It maybe related. Then compiz crashed and popup to report the crash. ProblemType: Crash DistroRelease: Ubuntu 12.04 Package: unity 5.4.0-0ubuntu2 Uname: Linux 3.3.0-030300rc5-generic x86_64 ApportVersion: 1.94.1-0ubuntu2 Architecture: amd64 Date: Mon Mar 12 07:00:44 2012 ExecutablePath: /usr/bin/compiz InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111011) ProcCmdline: compiz ProcEnviron: LANGUAGE=fr_CA:fr LANG=fr_CA.UTF-8 SHELL=/bin/bash SegvAnalysis: Segfault happened at: 0x7fd728d805a9 <intel_miptree_release+9>: mov (%rdi),%rcx PC (0x7fd728d805a9) ok source "(%rdi)" (0x00000220) not located in a known VMA region (needed readable region)! destination "%rcx" ok SegvReason: reading NULL VMA Signal: 11 SourcePackage: unity StacktraceTop: intel_miptree_release () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so intel_update_renderbuffers () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so intelSetTexBuffer2 () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so TfpTexture::bindPixmapToTexture(unsigned long, int, int, int) () from /usr/lib/compiz/libopengl.so boost::detail::function::function_invoker4<GLTexture::List (*)(unsigned long, int, int, int), GLTexture::List, unsigned long, int, int, int>::invoke(boost::detail::function::function_buffer&, unsigned long, int, int, int) () from /usr/lib/compiz/libopengl.so Title: compiz crashed with SIGSEGV in intel_miptree_release() UpgradeStatus: Upgraded to precise on 2012-03-11 (1 days ago) UserGroups: adm admin cdrom dialout lpadmin netdev plugdev sambashare To manage notifications about this bug go to: https://bugs.launchpad.net/mesa/+bug/952896/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

