Connected 2nd display, bugged out

[Thomas Novin]

Connected a 2nd display to my Lenovo laptop. The connection was done via the DisplayPort. Changed a little via System Settings > Displays to make this connected display the primary and to have the launcher and the app hung.

Found this in syslog:

Apr 3 08:09:28 thonov-ubuntu kernel: [62647.671484] unity-control-c[22376]: segfault at 0 ip 00007f85fed4bf73 sp 00007fffd8712740 error 4 in libdisplay.so[7f85fed43000+16000]
Apr 3 08:09:28 thonov-ubuntu kernel: [62647.676143] BUG: unable to handle kernel paging request at ffffc90018d6a000
Apr 3 08:09:28 thonov-ubuntu kernel: [62647.676181] IP: [<ffffffff813682fa>] memmove+0x4a/0x1a0
Apr 3 08:09:28 thonov-ubuntu kernel: [62647.676209] PGD 21580d067 PUD 21580e067 PMD 104eb7067 PTE 0
Apr 3 08:09:28 thonov-ubuntu kernel: [62647.676236] Oops: 0002 [#1] SMP
Apr 3 08:09:28 thonov-ubuntu kernel: [62647.676253] Modules linked in: btrfs raid6_pq xor ufs qnx4 hfsplus hfs minix ntfs msdos jfs xfs libcrc32c hid_generic ctr ccm pci_stub vboxpci(OF) vboxnetadp(OF) vboxnetflt(OF) vboxdrv(OF) arc4 iwldvm mac80211 cdc_mbim cdc_ncm usbnet mii cdc_wdm cdc_acm uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core rfcomm bnep videodev btusb bluetooth joydev intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper snd_hda_codec_hdmi ablk_helper cryptd psmouse snd_seq_midi snd_seq_midi_event serio_raw thinkpad_acpi snd_rawmidi nvram snd_hda_codec_conexant snd_hda_intel lpc_ich snd_hda_codec snd_hwdep iwlwifi snd_seq cfg80211 snd_pcm snd_seq_device mei_me snd_page_alloc mei snd_timer snd soundcore mac_hid lp parport hid_logitech_dj usbhid hid i915 i2c_algo_bit ahci drm_kms_helper firewire_ohci libahci e1000e drm firewire_core sdhci_pci sdhci ptp crc_itu_t pps_core wmi video
Apr 3 08:09:28 thonov-ubuntu kernel: [62647.676720] CPU: 1 PID: 22376 Comm: unity-control-c Tainted: GF W O 3.13.0-20-generic #42-Ubuntu
Apr 3 08:09:28 thonov-ubuntu kernel: [62647.676763] Hardware name: LENOVO 42433ZG/42433ZG, BIOS 8AET64WW (1.44 ) 07/26/2013
Apr 3 08:09:28 thonov-ubuntu kernel: [62647.676798] task: ffff8800ba710000 ti: ffff880102d2a000 task.ti: ffff880102d2a000
Apr 3 08:09:28 thonov-ubuntu kernel: [62647.676828] RIP: 0010:[<ffffffff813682fa>] [<ffffffff813682fa>] memmove+0x4a/0x1a0
Apr 3 08:09:28 thonov-ubuntu kernel: [62647.676863] RSP: 0000:ffff880102d2ba48 EFLAGS: 00010283
Apr 3 08:09:28 thonov-ubuntu kernel: [62647.676886] RAX: ffffc90018d6a000 RBX: ffffc90018d6a034 RCX: ffffc90018d6a000
Apr 3 08:09:28 thonov-ubuntu kernel: [62647.676917] RDX: fffffffffffffff4 RSI: ffffc90018d69fec RDI: ffffc90018d6a000
Apr 3 08:09:28 thonov-ubuntu kernel: [62647.676948] RBP: ffff880102d2bab8 R08: 626f6762696c2f75 R09: 6e672d78756e696c
Apr 3 08:09:28 thonov-ubuntu kernel: [62647.676980] R10: 2d34365f3638782f R11: 62696c2f7273752f R12: 00000000ffffffcc
Apr 3 08:09:28 thonov-ubuntu kernel: [62647.677013] R13: 0000000000000034 R14: ffffc90018d5e470 R15: ffff8801006eecc0
Apr 3 08:09:28 thonov-ubuntu kernel: [62647.677085] FS: 00007f862e7d09c0(0000) GS:ffff88021e240000(0000) knlGS:0000000000000000
Apr 3 08:09:28 thonov-ubuntu kernel: [62647.677122] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Apr 3 08:09:28 thonov-ubuntu kernel: [62647.677145] CR2: ffffc90018d6a000 CR3: 000000010f166000 CR4: 00000000000427e0
Apr 3 08:09:28 thonov-ubuntu kernel: [62647.677172] Stack:
Apr 3 08:09:28 thonov-ubuntu kernel: [62647.677181] ffffffff8121062e 000110008109ded4 ffffc90018d5f2c8 ffff880102d2bb48
Apr 3 08:09:28 thonov-ubuntu kernel: [62647.677219] ffff8800ba710000 00000000000062c8 ffff8800000062c8 ffffc90018d59000
Apr 3 08:09:28 thonov-ubuntu kernel: [62647.677254] ffff880100000383 ffff88020e1f92c0 ffff8800ba710000 0000000000000000
Apr 3 08:09:28 thonov-ubuntu kernel: [62647.677289] Call Trace:
Apr 3 08:09:28 thonov-ubuntu kernel: [62647.677305] [<ffffffff8121062e>] ? fill_note_info.isra.7+0x65e/0x830
Apr 3 08:09:28 thonov-ubuntu kernel: [62647.677334] [<ffffffff812108c0>] elf_core_dump+0xc0/0x840
Apr 3 08:09:28 thonov-ubuntu kernel: [62647.677361] [<ffffffff81716b79>] ? schedule+0x29/0x70
Apr 3 08:09:28 thonov-ubuntu kernel: [62647.677384] [<ffffffff81715dc9>] ? schedule_timeout+0x239/0x2d0
Apr 3 08:09:28 thonov-ubuntu kernel: [62647.677415] [<ffffffff81217821>] do_coredump+0xb41/0xe90
Apr 3 08:09:28 thonov-ubuntu kernel: [62647.677442] [<ffffffff81078dec>] ? force_sig_info+0xcc/0xe0
Apr 3 08:09:28 thonov-ubuntu kernel: [62647.677470] [<ffffffff8107a037>] get_signal_to_deliver+0x1c7/0x6f0
Apr 3 08:09:28 thonov-ubuntu kernel: [62647.677501] [<ffffffff81013448>] do_signal+0x48/0x960
Apr 3 08:09:28 thonov-ubuntu kernel: [62647.677528] [<ffffffff8111128c>] ? acct_account_cputime+0x1c/0x20
Apr 3 08:09:28 thonov-ubuntu kernel: [62647.677559] [<ffffffff8109d71b>] ? account_user_time+0x8b/0xa0
Apr 3 08:09:28 thonov-ubuntu kernel: [62647.677589] [<ffffffff8109dd34>] ? vtime_account_user+0x54/0x60
Apr 3 08:09:28 thonov-ubuntu kernel: [62647.677619] [<ffffffff81013dc9>] do_notify_resume+0x69/0xb0
Apr 3 08:09:28 thonov-ubuntu kernel: [62647.677650] [<ffffffff8171acfc>] retint_signal+0x48/0x8c
Apr 3 08:09:28 thonov-ubuntu kernel: [62647.677676] Code: 00 00 48 81 fa a8 02 00 00 72 05 40 38 fe 74 41 48 83 ea 20 48 83 ea 20 4c 8b 1e 4c 8b 56 08 4c 8b 4e 10 4c 8b 46 18 48 8d 76 20 <4c> 89 1f 4c 89 57 08 4c 89 4f 10 4c 89 47 18 48 8d 7f 20 73 d4
Apr 3 08:09:28 thonov-ubuntu kernel: [62647.677818] RIP [<ffffffff813682fa>] memmove+0x4a/0x1a0
Apr 3 08:09:28 thonov-ubuntu kernel: [62647.677846] RSP <ffff880102d2ba48>
Apr 3 08:09:28 thonov-ubuntu kernel: [62647.677864] CR2: ffffc90018d6a000
Apr 3 08:09:28 thonov-ubuntu kernel: [62647.686309] ---[ end trace b3bc75c9422de327 ]---

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: xorg 1:7.7+1ubuntu8
ProcVersionSignature: Ubuntu 3.13.0-20.42-generic 3.13.7
Uname: Linux 3.13.0-20-generic x86_64
.tmp.unity.support.test.0:

ApportVersion: 2.14-0ubuntu1
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
CurrentDesktop: Unity
Date: Thu Apr 3 08:10:49 2014
DistUpgraded: Fresh install
DistroCodename: trusty
DistroVariant: ubuntu
EcryptfsInUse: Yes
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
 Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0126] (rev 09) (prog-if 00 [VGA controller])
   Subsystem: Lenovo Device [17aa:21cf]
InstallationDate: Installed on 2014-03-26 (7 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Beta amd64 (20140325.1)
MachineType: LENOVO 42433ZG
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-20-generic root=UUID=c3c7f36f-ca42-443e-819f-5553fe3d040a ro quiet splash vt.handoff=7
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/26/2013
dmi.bios.vendor: LENOVO
dmi.bios.version: 8AET64WW (1.44 )
dmi.board.asset.tag: Not Available
dmi.board.name: 42433ZG
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr8AET64WW(1.44):bd07/26/2013:svnLENOVO:pn42433ZG:pvrThinkPadT520:rvnLENOVO:rn42433ZG:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 42433ZG
dmi.product.version: ThinkPad T520
dmi.sys.vendor: LENOVO
version.compiz: compiz 1:0.9.11+14.04.20140328-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.52-1
version.libgl1-mesa-dri: libgl1-mesa-dri 10.1.0-4ubuntu1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.0-4ubuntu1
version.xserver-xorg-core: xserver-xorg-core 2:1.15.0-1ubuntu7
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.8.2-1ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.3.0-1ubuntu3
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.910-0ubuntu1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2
xserver.bootTime: Wed Apr 2 14:44:01 2014
xserver.configfile: default
xserver.errors:

xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
 product id 16561
 vendor LEN
xserver.version: 2:1.15.0-1ubuntu7

[penalvch (penalvch)]

Thomas N, thank you for reporting this and helping make Ubuntu better. Could you please test the latest upstream kernel available from the very top line at the top of the page (the release names are irrelevant for testing, and please do not test the daily folder) following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine the issue.

If the test did not allow you to test to the issue (ex. you couldn't boot into the OS) please make a comment in your report about this, and continue to test the next most recent kernel version until you can test to the issue. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this bug is fixed in the mainline kernel, please add the following tags by clicking on the yellow circle with a black pencil icon, next to the word Tags, located at the bottom of the report description:
kernel-fixed-upstream
kernel-fixed-upstream-3.XY-rcZ

Where XY and Z are numbers corresponding to the kernel version.

If the mainline kernel does not fix this bug, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-3.XY-rcZ

Once testing of the upstream kernel is complete, please mark this bug's Status as Confirmed. Please let us know your results.

Thank you for your understanding.

[Thomas Novin (thomasn80)]

Not using Ubuntu any longer, too much bugs. So I cannot do any testing.

[penalvch (penalvch)]

Thomas N, this bug report is being closed due to your last comment https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1301756/comments/3 regarding you are not using Ubuntu. For future reference you can manage the status of your own bugs by clicking on the current status in the yellow line and then choosing a new status in the revealed drop down box. You can learn more about bug statuses at https://wiki.ubuntu.com/Bugs/Status. Thank you again for taking the time to report this bug and helping to make Ubuntu better. Please submit any future bugs you may find.