The OopsText.txt seems to indicate and issue with the nouveau driver. Reassigning to the xserver-xorg-video-nouveau package.
BUG: unable to handle kernel NULL pointer dereference at (null) IP: [<f865b887>] nv50_vm_map_sg+0x47/0x90 [nouveau] *pdpt = 000000002ea39001 *pde = 0000000000000000 Oops: 0000 [#1] SMP Modules linked in: bnep rfcomm binfmt_misc dm_crypt snd_hda_codec_analog arc4 ppdev snd_hda_intel snd_hda_codec snd_hwdep pcmcia snd_pcm thinkpad_acpi snd_seq_midi snd_rawmidi joydev snd_seq_midi_event iwl4965 snd_seq iwl_legacy psmouse yenta_socket serio_raw pcmcia_rsrc pcmcia_core mac80211 snd_timer snd_seq_device cfg80211 snd snd_page_alloc soundcore nvram parport_pc btusb tpm_tis bluetooth lp parport hid_cherry usbhid hid firewire_ohci firewire_core crc_itu_t ahci libahci nouveau ttm drm_kms_helper drm i2c_algo_bit mxm_wmi wmi video e1000e Pid: 1065, comm: Xorg Not tainted 3.0.0-9-generic-pae #14-Ubuntu LENOVO 7663PJG/7663PJG EIP: 0060:[<f865b887>] EFLAGS: 00013256 CPU: 0 EIP is at nv50_vm_map_sg+0x47/0x90 [nouveau] EAX: 00000003 EBX: 00012128 ECX: 00000021 EDX: fffeded8 ESI: 00000000 EDI: 00000000 EBP: eea37c70 ESP: eea37c54 DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 Process Xorg (pid: 1065, ti=eea36000 task=f0030cb0 task.ti=eea36000) Stack: ecb61b40 ecb61b58 fffeded8 f1b96240 f1af4100 00000001 00000000 eea37cb0 f8608e4d 00002425 00000ed0 00000000 00022425 00000000 00000000 00000000 00020000 ecb61b58 f1af4100 00000ed0 ecb61b58 ecb61b40 f1af4100 eea37cd8 Call Trace: [<f8608e4d>] nouveau_vm_map_sg+0xcd/0x120 [nouveau] [<f85e6996>] nouveau_bo_move_ntfy+0x96/0xc0 [nouveau] [<f84baeab>] ttm_bo_handle_move_mem+0xbb/0x2f0 [ttm] [<f84bbe15>] ttm_bo_move_buffer+0x125/0x140 [ttm] [<f84ba65e>] ? ttm_bo_reserve_locked+0xae/0x120 [ttm] [<f84bbeef>] ttm_bo_validate+0xbf/0xe0 [ttm] [<f85e71cf>] nouveau_bo_validate+0x2f/0x50 [nouveau] [<f85e937e>] validate_list+0xae/0x2f0 [nouveau] [<f85e9b1b>] nouveau_gem_pushbuf_validate+0xdb/0x200 [nouveau] [<f85ea41a>] nouveau_gem_ioctl_pushbuf+0x19a/0x820 [nouveau] [<f84e3f40>] drm_ioctl+0x390/0x450 [drm] [<f85ea280>] ? nouveau_gem_ioctl_new+0x1b0/0x1b0 [nouveau] [<f84e3bb0>] ? drm_copy_field+0x80/0x80 [drm] [<c1142169>] do_vfs_ioctl+0x79/0x2d0 [<c100953e>] ? restore_sigcontext+0xbe/0xe0 [<c114242f>] sys_ioctl+0x6f/0x80 [<c155a49f>] sysenter_do_call+0x12/0x28 ** Package changed: linux (Ubuntu) => xserver-xorg-video-nouveau (Ubuntu) ** Changed in: xserver-xorg-video-nouveau (Ubuntu) Status: Confirmed => New ** Summary changed: - BUG: unable to handle kernel NULL pointer dereference at (null) + [nouveau] BUG: unable to handle kernel NULL pointer dereference at (null) -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-nouveau in Ubuntu. https://bugs.launchpad.net/bugs/837485 Title: [nouveau] BUG: unable to handle kernel NULL pointer dereference at (null) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/837485/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp