I don't think this is a duplicate of https://bugs.launchpad.net/bugs/1543192. Although it triggers a crash at the same point, the underlying cause of this bug is an incompatibility between the modesetting driver and kernel 3.8-rc3. (Unless the underlying bug is in the kernel and it triggers the other bug.)
** This bug is no longer a duplicate of bug 1543192 Xorg crashed with SIGABRT in OsAbort() -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1615540 Title: Xorg crashes with modeset driver on kernel 4.8-rc3 with SIGABRT in OsAbort() Status in xorg-server package in Ubuntu: New Bug description: With kernel 4.8-rc3, lightdm no longer starts if the modesetting driver is in use, because X crashes (I get the 'X is running in low- graphics mode' message). The modesetting driver works ok though with kernels 4.4, 4.6, and 4.7. Using the intel driver it boots up fine (well, almost - the laptop screen turns off during login, so I have to type in my password blind, but then the laptop screen turns on and the desktop fires up). ProblemType: Crash DistroRelease: Ubuntu 16.10 Package: xserver-xorg-core 2:1.18.4-1ubuntu4 Uname: Linux 4.8.0-040800rc3-generic x86_64 .tmp.unity_support_test.0: ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 BootLog: CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: compiz CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0' CompositorUnredirectFSW: true CrashCounter: 1 Date: Mon Aug 22 16:41:32 2016 DistUpgraded: 2016-07-25 02:38:44,004 DEBUG Running PostInstallScript: './xorg_fix_proprietary.py' DistroCodename: yakkety DistroVariant: ubuntu EcryptfsInUse: Yes ExecutablePath: /usr/lib/xorg/Xorg ExtraDebuggingInterest: Yes GraphicsCard: Intel Corporation HD Graphics 530 [8086:191b] (rev 06) (prog-if 00 [VGA controller]) Subsystem: Dell HD Graphics 530 [1028:06e4] InstallationDate: Installed on 2016-07-04 (48 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1) MachineType: Dell Inc. XPS 15 9550 ProcCmdline: /usr/lib/xorg/Xorg -core :0 -seat seat0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch ProcEnviron: ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.6.4-040604-generic root=UUID=8de7ebec-48db-48b6-9eb9-fafdee4eb7d6 ro rootflags=subvol=@ quiet splash nogpumanager vt.handoff=7 Signal: 6 SourcePackage: xorg-server StacktraceTop: OsAbort () ?? () FatalError () ?? () __libc_start_main (main=0x55af52986210, argc=11, argv=0x7ffd2722f988, init=<optimised out>, fini=<optimised out>, rtld_fini=<optimised out>, stack_end=0x7ffd2722f978) at ../csu/libc-start.c:291 Title: Xorg crashed with SIGABRT in OsAbort() UpgradeStatus: Upgraded to yakkety on 2016-07-24 (28 days ago) UserGroups: dmi.bios.date: 04/07/2016 dmi.bios.vendor: Dell Inc. dmi.bios.version: 01.02.00 dmi.board.name: 0N7TVV dmi.board.vendor: Dell Inc. dmi.board.version: A01 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr01.02.00:bd04/07/2016:svnDellInc.:pnXPS159550:pvr:rvnDellInc.:rn0N7TVV:rvrA01:cvnDellInc.:ct9:cvr: dmi.product.name: XPS 15 9550 dmi.sys.vendor: Dell Inc. version.compiz: compiz 1:0.9.13.0+16.10.20160818.2-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.70-1 version.libgl1-mesa-dri: libgl1-mesa-dri 12.0.1-3ubuntu2 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 12.0.1-3ubuntu2 version.xserver-xorg-core: xserver-xorg-core 2:1.18.4-1ubuntu4 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.2-1ubuntu1 version.xserver-xorg-video-ati: xserver-xorg-video-ati N/A version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20160706-1ubuntu1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau N/A To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1615540/+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
