*** This bug is a duplicate of bug 477134 *** https://bugs.launchpad.net/bugs/477134
In case the apport-collected data does not contain the kernel oops from the previous boot without nomodeset, here it is: Nov 30 10:50:58 thorsten-nb kernel: [ 1025.824244] divide error: 0000 [#1] SMP Nov 30 10:50:58 thorsten-nb kernel: [ 1025.824251] last sysfs file: /sys/devices/pci0000:00/0000:00:1d.7/usb2/2-1/2-1:1.0/bInterfaceSubClass Nov 30 10:50:58 thorsten-nb kernel: [ 1025.824255] Modules linked in: binfmt_misc ppdev bridge stp bnep nfsd lockd nfs_acl auth_rpcgss sunrpc exportfs dm_crypt snd_hda_codec_analog btusb snd_hda_intel snd_hda_codec arc4 ecb snd_hwdep snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_dummy snd_seq_oss iwlagn pcmcia snd_seq_midi snd_rawmidi sdhci_pci snd_seq_midi_event sdhci iptable_filter iwlcore mac80211 thinkpad_acpi psmouse snd_seq yenta_socket rsrc_nonstatic snd_timer snd_seq_device snd lp parport soundcore sierra nvram ip_tables serio_raw pcmcia_core snd_page_alloc led_class usbserial x_tables cfg80211 usbhid fbcon tileblit font bitblit softcursor ohci1394 ieee1394 e1000e i915 drm i2c_algo_bit intel_agp agpgart video output usb_storage Nov 30 10:50:58 thorsten-nb kernel: [ 1025.824328] Nov 30 10:50:58 thorsten-nb kernel: [ 1025.824332] Pid: 1372, comm: Xorg Not tainted (2.6.31-15-generic-pae #50-Ubuntu) 7767A5U Nov 30 10:50:58 thorsten-nb kernel: [ 1025.824336] EIP: 0060:[<f84dd3dd>] EFLAGS: 00213246 CPU: 1 Nov 30 10:50:58 thorsten-nb kernel: [ 1025.824354] EIP is at intel_crtc_mode_set+0x149d/0x1760 [i915] Nov 30 10:50:58 thorsten-nb kernel: [ 1025.824357] EAX: 00014b40 EBX: f6044400 ECX: f6044f00 EDX: 00000000 Nov 30 10:50:58 thorsten-nb kernel: [ 1025.824360] ESI: 00000000 EDI: 00000000 EBP: f5d6dc5c ESP: f5d6db70 Nov 30 10:50:58 thorsten-nb kernel: [ 1025.824363] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 Nov 30 10:50:58 thorsten-nb kernel: [ 1025.824367] Process Xorg (pid: 1372, ti=f5d6c000 task=f5d63ed0 task.ti=f5d6c000) Nov 30 10:50:58 thorsten-nb kernel: [ 1025.824369] Stack: Nov 30 10:50:58 thorsten-nb kernel: [ 1025.824371] 00000001 f84f19a9 f84ebcbc f84f1b6d 00000042 00000001 00000000 00000001 Nov 30 10:50:58 thorsten-nb kernel: [ 1025.824380] <0> 01010001 00006020 000f100c 00071190 0007118c 00061030 00061034 00061040 Nov 30 10:50:58 thorsten-nb kernel: [ 1025.824389] <0> 00061044 000c6048 000c6018 00006048 00071180 00061000 00061004 00061008 Nov 30 10:50:58 thorsten-nb kernel: [ 1025.824398] Call Trace: Nov 30 10:50:58 thorsten-nb kernel: [ 1025.824432] [<f83c66b8>] ? drm_crtc_helper_set_mode+0x288/0x430 [drm] Nov 30 10:50:58 thorsten-nb kernel: [ 1025.824458] [<f83c71aa>] ? drm_crtc_helper_set_config+0x58a/0x6a0 [drm] Nov 30 10:50:58 thorsten-nb kernel: [ 1025.824472] [<c03153a3>] ? idr_pre_get+0x43/0x80 Nov 30 10:50:58 thorsten-nb kernel: [ 1025.824477] [<c0315338>] ? idr_get_new_above+0x8/0x30 Nov 30 10:50:58 thorsten-nb kernel: [ 1025.824496] [<f83c31ed>] ? drm_mode_object_get+0x5d/0xa0 [drm] Nov 30 10:50:58 thorsten-nb kernel: [ 1025.824521] [<f83c53cc>] ? drm_mode_setcrtc+0x14c/0x340 [drm] Nov 30 10:50:58 thorsten-nb kernel: [ 1025.824527] [<c0494b2c>] ? sock_aio_read+0x11c/0x130 Nov 30 10:50:58 thorsten-nb kernel: [ 1025.824551] [<f83ba860>] ? drm_ioctl+0x180/0x360 [drm] Nov 30 10:50:58 thorsten-nb kernel: [ 1025.824576] [<f83c5280>] ? drm_mode_setcrtc+0x0/0x340 [drm] Nov 30 10:50:58 thorsten-nb kernel: [ 1025.824582] [<c02cb85f>] ? security_file_permission+0xf/0x20 Nov 30 10:50:58 thorsten-nb kernel: [ 1025.824594] [<c01f8983>] ? vfs_ioctl+0x73/0x90 Nov 30 10:50:58 thorsten-nb kernel: [ 1025.824599] [<c01f8c51>] ? do_vfs_ioctl+0x71/0x310 Nov 30 10:50:58 thorsten-nb kernel: [ 1025.824603] [<c01f8f4f>] ? sys_ioctl+0x5f/0x80 Nov 30 10:50:58 thorsten-nb kernel: [ 1025.824608] [<c0103283>] ? sysenter_do_call+0x12/0x28 Nov 30 10:50:58 thorsten-nb kernel: [ 1025.824611] Code: 2d ff ff ff e9 b3 f4 ff ff 90 8d 74 26 00 83 f8 46 0f 84 ad fe ff ff 83 f8 42 0f 84 a4 fe ff ff 8b 53 3c 8b 4d 90 89 d0 c1 fa 1f <f7> 79 3c 8b 4d b4 8d 50 ff 8b 85 38 ff ff ff c1 e2 08 03 41 08 Nov 30 10:50:58 thorsten-nb kernel: [ 1025.824663] EIP: [<f84dd3dd>] intel_crtc_mode_set+0x149d/0x1760 [i915] SS:ESP 0068:f5d6db70 Nov 30 10:50:58 thorsten-nb kernel: [ 1025.824683] ---[ end trace 26bda6d3f3b97ed3 ]--- The bug seems to be triggered by an XRandR call, these are the last lines from Xorg.0.log: II) intel(0): Modeline "640x480"x59.9 25.18 640 656 752 800 480 490 492 525 -hsync -vsync (31.5 kHz) (II) intel(0): Modeline "720x400"x85.0 35.50 720 756 828 936 400 401 404 446 -hsync +vsync (37.9 kHz) (II) intel(0): Modeline "640x400"x85.1 31.50 640 672 736 832 400 401 404 445 -hsync +vsync (37.9 kHz) (II) intel(0): Modeline "640x350"x85.1 31.50 640 672 736 832 350 382 385 445 +hsync -vsync (37.9 kHz) (II) intel(0): Modeline "0x0"x0.0 0.00 0 0 0 0 0 0 0 0 (0.0 kHz) Note the invalid last modeline before the crash. ** This bug has been marked a duplicate of bug 477134 X server hard crash when kubuntu System Settings Display app is started -- KMS crashes when Display settings is clicked in KDE System Settings https://bugs.launchpad.net/bugs/490274 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs