Joseph: I'm seeing an identical backtrace on one of my dads machines after upgrade to a recent kernel; it's intermittent perhaps 1/4 ish boots 3.13.0-32-generic, so I say not fixed: Jul 22 17:58:13 thedr kernel: [ 16.146863] fb: conflicting fb hw usage inteldrmfb vs VESA VGA - removing generic driver Jul 22 17:58:13 thedr kernel: [ 16.202062] Console: switching to colour dummy device 80x25 Jul 22 17:58:13 thedr kernel: [ 16.202085] BUG: unable to handle kernel NULL pointer dereference at 0000000000000138 Jul 22 17:58:13 thedr kernel: [ 16.202089] IP: [] con_set_unimap+0x32/0x290 Jul 22 17:58:13 thedr kernel: [ 16.202091] PGD c6dc1067 PUD c6d8d067 PMD 0 Jul 22 17:58:13 thedr kernel: [ 16.202092] Oops: 0000 [#1] SMP Jul 22 17:58:13 thedr kernel: [ 16.202104] Modules linked in: intel_powerclamp snd_hda_codec coretemp i915(+) snd_hwdep lpc_ich snd_pcm snd_page_alloc kvm_intel kvm snd_seq_midi snd_seq_midi_event crct10dif_pclmul snd_rawmidi crc32_pclmul snd_seq drm_kms_helper drm i2c_algo_bit mei_me mei ghash_clmulni_intel cryptd snd_seq_device snd_timer wmi parport_pc snd video ppdev serio_raw soundcore mac_hid lp parport binfmt_misc hid_generic usbhid hid r8169 mii Jul 22 17:58:13 thedr kernel: [ 16.202106] CPU: 1 PID: 593 Comm: setfont Not tainted 3.13.0-32-generic #57-Ubuntu Jul 22 17:58:13 thedr kernel: [ 16.202106] Hardware name: System manufacturer System Product Name/P8H61-MX R2.0, BIOS 0504 06/29/2012 Jul 22 17:58:13 thedr kernel: [ 16.202107] task: ffff8802126cdfc0 ti: ffff8800c6c86000 task.ti: ffff8800c6c86000 Jul 22 17:58:13 thedr kernel: [ 16.202110] RIP: 0010:[] [] con_set_unimap+0x32/0x290 Jul 22 17:58:13 thedr kernel: [ 16.202110] RSP: 0018:ffff8800c6c87d48 EFLAGS: 00010246 Jul 22 17:58:13 thedr kernel: [ 16.202111] RAX: ffff88021740c308 RBX: 0000000000e58b10 RCX: 000000000000c710 Jul 22 17:58:13 thedr kernel: [ 16.202111] RDX: 0000000000001278 RSI: 0000000000000296 RDI: 0000000000000296 Jul 22 17:58:13 thedr kernel: [ 16.202112] RBP: ffff8800c6c87db0 R08: ffff8800c6c86000 R09: 0000000000000001 Jul 22 17:58:13 thedr kernel: [ 16.202113] R10: 0000000000000001 R11: ffffea0008424740 R12: 0000000000000000 Jul 22 17:58:13 thedr kernel: [ 16.202113] R13: 0000000000004b67 R14: ffff88021740c000 R15: ffff88021740c000 Jul 22 17:58:13 thedr kernel: [ 16.202114] FS: 00007fe0c4bf9740(0000) GS:ffff88021fb00000(0000) knlGS:0000000000000000 Jul 22 17:58:13 thedr kernel: [ 16.202115] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Jul 22 17:58:13 thedr kernel: [ 16.202115] CR2: 0000000000000138 CR3: 00000000c6d92000 CR4: 00000000000407e0 Jul 22 17:58:13 thedr kernel: [ 16.202116] Stack: Jul 22 17:58:13 thedr kernel: [ 16.202118] ffff8800c6c87d78 ffffffff813110ed ffff8802126cdfc0 0000000000000000 Jul 22 17:58:13 thedr kernel: [ 16.202119] 0000000000004b67 ffff88021740c000 000002e1c6c87d88 ffff88021740c000 Jul 22 17:58:13 thedr kernel: [ 16.202120] 0000000000000000 0000000000000000 0000000000004b67 ffff88021740c000 Jul 22 17:58:13 thedr kernel: [ 16.202120] Call Trace: Jul 22 17:58:13 thedr kernel: [ 16.202125] [] ? apparmor_capable+0x1d/0x130 Jul 22 17:58:13 thedr kernel: [ 16.202127] [] vt_ioctl+0xe83/0x11c0 Jul 22 17:58:13 thedr kernel: [ 16.202129] [] tty_ioctl+0x26d/0xbb0 Jul 22 17:58:13 thedr kernel: [ 16.202132] [] do_vfs_ioctl+0x2e0/0x4c0 Jul 22 17:58:13 thedr kernel: [ 16.202134] [] ? vtime_account_user+0x54/0x60 Jul 22 17:58:13 thedr kernel: [ 16.202136] [] SyS_ioctl+0x81/0xa0 Jul 22 17:58:13 thedr kernel: [ 16.202139] [] tracesys+0xe1/0xe6 Jul 22 17:58:13 thedr kernel: [ 16.202149] Code: 89 e5 41 57 49 89 ff 41 56 41 55 41 54 53 48 89 d3 48 83 ec 40 48 89 7d d0 89 75 cc e8 38 0c c6 ff 49 8b 87 10 03 00 00 4c 8b 20 <41> 8b 84 24 38 01 00 00 85 c0 0f 85 38 02 00 00 66 83 7d cc 00 Jul 22 17:58:13 thedr kernel: [ 16.202151] RIP [] con_set_unimap+0x32/0x290 Jul 22 17:58:13 thedr kernel: [ 16.202151] RSP Jul 22 17:58:13 thedr kernel: [ 16.202152] CR2: 0000000000000138 Jul 22 17:58:13 thedr kernel: [ 16.202153] ---[ end trace 2040d79b62a518c4 ]--- 00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)