Hi, I also have this bug , my system is:
Kubuntu Trusty Thar Intel(R) Pentium(R) CPU P6000 @ 1.87GHz in HP G72 notebook glxinfo | grep OpenGL OpenGL vendor string: Intel Open Source Technology Center OpenGL renderer string: Mesa DRI Intel(R) Ironlake Mobile OpenGL version string: 2.1 Mesa 10.1.0 OpenGL shading language version string: 1.20 I try the proposed patch with sudo apt-get build-dep mesa apt-get source mesa cd mesa*/ Then a change the line proposed in the patch in /src/mesa/drivers/dri/i965/brw_context.c dpkg-source --commit dpkg-buildpackage sudo dpkg -i libgl1-mesa-dri libgl1-mesa-glx Then i reboot but the bug is still there , kwin crashes if i enable desktop effects, here is the krash log: Thread 1 (Thread 0x7f6418790800 (LWP 2353)): [KCrash Handler] #5 0x00007f6417ea2f79 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56 #6 0x00007f6417ea6388 in __GI_abort () at abort.c:89 #7 0x00007f6417e9be36 in __assert_fail_base (fmt=0x7f641877e05f "%s%s%s\302\240:%u\302\240:\302\240%s%s l'assertion \302\253\302\240%s\302\240\302\273 a \303\251chou\303\251.\n%n", assertion=assertion@entry=0x7f63f3cf2a63 "brw->hw_ctx != ((void *)0)", file=file@entry=0x7f63f3cf2a28 "../../../../../../../src/mesa/drivers/dri/i965/brw_reset.c", line=line@entry=43, function=function@entry=0x7f63f3cf2a80 "brw_get_graphics_reset_status") at assert.c:92 #8 0x00007f6417e9bee2 in __GI___assert_fail (assertion=0x7f63f3cf2a63 "brw->hw_ctx != ((void *)0)", file=0x7f63f3cf2a28 "../../../../../../../src/mesa/drivers/dri/i965/brw_reset.c", line=43, function=0x7f63f3cf2a80 "brw_get_graphics_reset_status") at assert.c:101 I try also with the final 3.14 kernel from the mainline ppa and also with the latest mesa an libdrm from the oibaf ppa with the same result -- 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/1299499 Title: kwin crashes on desktop startup with wobbly windows enabled Status in Mesa: Confirmed Status in “mesa” package in Ubuntu: Confirmed Bug description: kwin reports a crash while starting up, and desktop effects are not enabled for the session. ProblemType: Crash DistroRelease: Ubuntu 14.04 Package: kde-window-manager 4:4.11.8-0ubuntu1 ProcVersionSignature: Ubuntu 3.13.0-20.42-generic 3.13.7 Uname: Linux 3.13.0-20-generic x86_64 ApportVersion: 2.13.3-0ubuntu1 Architecture: amd64 AssertionMessage: kwin: ../../../../../../../src/mesa/drivers/dri/i965/brw_reset.c:43: brw_get_graphics_reset_status: Assertion `brw->hw_ctx != ((void *)0)' failed. CrashCounter: 1 CurrentDesktop: KDE Date: Sat Mar 29 11:11:04 2014 ExecutablePath: /usr/bin/kwin InstallationDate: Installed on 2014-02-03 (53 days ago) InstallationMedia: Ubuntu-Server 13.10 "Saucy Salamander" - Release amd64 (20131016) ProcCmdline: /usr/bin/kwin --crashes 2 ProcEnviron: LANGUAGE=en_US PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash Signal: 6 SourcePackage: kde-workspace StacktraceTop: __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56 __GI_abort () at abort.c:89 __assert_fail_base (fmt=0x7f7a0d7c2718 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n", assertion=assertion@entry=0x7f79edba7a63 "brw->hw_ctx != ((void *)0)", file=file@entry=0x7f79edba7a28 "../../../../../../../src/mesa/drivers/dri/i965/brw_reset.c", line=line@entry=43, function=function@entry=0x7f79edba7a80 "brw_get_graphics_reset_status") at assert.c:92 __GI___assert_fail (assertion=0x7f79edba7a63 "brw->hw_ctx != ((void *)0)", file=0x7f79edba7a28 "../../../../../../../src/mesa/drivers/dri/i965/brw_reset.c", line=43, function=0x7f79edba7a80 "brw_get_graphics_reset_status") at assert.c:101 ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so Title: kwin assert failure: kwin: ../../../../../../../src/mesa/drivers/dri/i965/brw_reset.c:43: brw_get_graphics_reset_status: Assertion `brw->hw_ctx != ((void *)0)' failed. UpgradeStatus: Upgraded to trusty on 2014-03-03 (26 days ago) UserGroups: adm cdrom dip libvirtd lpadmin plugdev sambashare sudo To manage notifications about this bug go to: https://bugs.launchpad.net/mesa/+bug/1299499/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
