frew, as per http://support.lenovo.com/us/en/products/Laptops-and- netbooks/ThinkPad-T-Series-laptops/ThinkPad- T440p?tabName=Downloads&linkTrack=Mast:SubNav:Support:Drivers%20and%20Software|Drivers%20and%20Software&beta=false an update to your computer's buggy, insecure, and outdated BIOS is available (2.37). If you update to this following https://help.ubuntu.com/community/BIOSUpdate does it change anything?
For more on BIOS updates and linux, please see https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette . Please note your current BIOS is already in the Bug Description, so posting this on the old BIOS would not be helpful. Also, you don't have to create a new bug report. Once the BIOS is updated, if the problem is still reproducible: 1) Please provide the output of the following terminal command (not perform an apport-collect): sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date 2) Please make a comment specifically advising on if there was an improvement or not. 3) Please mark this report Status Confirmed. If it's not reproducible, please mark this as Invalid. Thank you for your understanding. ** Tags added: bios-outdated-2.37 ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1576764 Title: Kernel bug caused by XRandR / Video Drivers Status in linux package in Ubuntu: Incomplete Bug description: Here are two stack traces showing the issue: Apr 29 08:33:05 zfp kernel: [34730.860474] general protection fault: 0000 [#1] SMP Apr 29 08:33:05 zfp kernel: [34730.860507] Modules linked in: ctr ccm xt_nat xt_tcpudp ipt_REJECT nf_reject_ipv4 pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) rfcomm veth ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 xt_addrtype xt_conntrack nf_nat nf_conntrack br_netfilter bridge stp llc overlay xt_multiport iptable_filter ip_tables x_tables bnep arc4 snd_usb_audio snd_usbmidi_lib uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_core v4l2_common videodev media btusb btrtl btbcm btintel intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel bluetooth kvm irqbypass input_leds joydev serio_raw iwlmvm mac80211 snd_seq_midi snd_hda_codec_hdmi snd_hda_codec_realtek snd_seq_midi_event iwlwifi snd_hda_codec_generic thinkpad_acpi snd_rawmidi nvram cfg80211 rtsx_pci_ms snd_hda_intel memstick lpc_ich snd_hda_codec mei_me mei snd_hda_core snd_hwdep snd_pcm ie31200_edac snd_seq edac_core snd_seq_ device snd_timer snd soundcore shpchp mac_hid sch_fq_codel nfsd auth_rpcgss nfs_acl lockd grace sunrpc parport_pc ppdev lp parport autofs4 drbg ansi_cprng algif_skcipher af_alg dm_crypt hid_thingm hid_generic hid_logitech_hidpp hid_logitech_dj usbhid hid rtsx_pci_sdmmc crct10dif_pclmul crc32_pclmul aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd nouveau i915 psmouse ahci libahci mxm_wmi ttm rtsx_pci i2c_algo_bit drm_kms_helper e1000e syscopyarea sysfillrect sysimgblt fb_sys_fops drm ptp pps_core wmi fjes video Apr 29 08:33:05 zfp kernel: [34730.861171] CPU: 1 PID: 1523 Comm: Xorg Tainted: G OE 4.4.0-21-generic #37-Ubuntu Apr 29 08:33:05 zfp kernel: [34730.861203] Hardware name: LENOVO 20AN006LUS/20AN006LUS, BIOS GLET77WW (2.31 ) 01/27/2015 Apr 29 08:33:05 zfp kernel: [34730.861233] task: ffff8800a92b1b80 ti: ffff880428664000 task.ti: ffff880428664000 Apr 29 08:33:05 zfp kernel: [34730.861261] RIP: 0010:[<ffffffffc01221cb>] [<ffffffffc01221cb>] drm_dp_payload_send_msg+0x15b/0x210 [drm_kms_helper] Apr 29 08:33:05 zfp kernel: [34730.861308] RSP: 0018:ffff880428667ad8 EFLAGS: 00010282 Apr 29 08:33:05 zfp kernel: [34730.861328] RAX: ffff8800a92b1b80 RBX: 0a26771717294f2d RCX: ffff880425e1d908 Apr 29 08:33:05 zfp kernel: [34730.861354] RDX: 0000000080000000 RSI: 0a26771717294f2d RDI: ffff880425e1d908 Apr 29 08:33:05 zfp kernel: [34730.861380] RBP: ffff880428667b28 R08: 000000000001a040 R09: ffffffffc012216b Apr 29 08:33:05 zfp kernel: [34730.861406] R10: ffffea000211bc00 R11: 0000000000000000 R12: ffff88042bf57810 Apr 29 08:33:05 zfp kernel: [34730.861432] R13: ffff880425e1d650 R14: ffff880425e1d650 R15: ffff8804249e1800 Apr 29 08:33:05 zfp kernel: [34730.861458] FS: 00007feb611c4a00(0000) GS:ffff88043e240000(0000) knlGS:0000000000000000 Apr 29 08:33:05 zfp kernel: [34730.861488] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Apr 29 08:33:05 zfp kernel: [34730.861509] CR2: 000055f2ae2e4b30 CR3: 00000004279e9000 CR4: 00000000001406e0 Apr 29 08:33:05 zfp kernel: [34730.861534] Stack: Apr 29 08:33:05 zfp kernel: [34730.861543] 587ca201012a25ee ffff880425e1d908 ffff880428667b00 0000000000000001 Apr 29 08:33:05 zfp kernel: [34730.861574] 000000003e400d66 0000000000000001 ffff88042bf57810 ffff880425e1d650 Apr 29 08:33:05 zfp kernel: [34730.861605] 0000000000000001 ffff880425e1d9a0 ffff880428667b68 ffffffffc01227f2 Apr 29 08:33:05 zfp kernel: [34730.861636] Call Trace: Apr 29 08:33:05 zfp kernel: [34730.861651] [<ffffffffc01227f2>] drm_dp_update_payload_part2+0xc2/0x130 [drm_kms_helper] Apr 29 08:33:05 zfp kernel: [34730.861700] [<ffffffffc0278cf7>] intel_mst_enable_dp+0xe7/0x110 [i915] Apr 29 08:33:05 zfp kernel: [34730.861739] [<ffffffffc025bcd1>] haswell_crtc_enable+0x421/0x870 [i915] Apr 29 08:33:05 zfp kernel: [34730.861779] [<ffffffffc02648d2>] ? intel_frontbuffer_flush+0x42/0x80 [i915] Apr 29 08:33:05 zfp kernel: [34730.861819] [<ffffffffc0258b64>] intel_atomic_commit+0x454/0x6f0 [i915] Apr 29 08:33:05 zfp kernel: [34730.861857] [<ffffffffc0064c47>] drm_atomic_commit+0x37/0x60 [drm] Apr 29 08:33:05 zfp kernel: [34730.861884] [<ffffffffc0126a06>] drm_atomic_helper_set_config+0x76/0xb0 [drm_kms_helper] Apr 29 08:33:05 zfp kernel: [34730.861922] [<ffffffffc0053e02>] drm_mode_set_config_internal+0x62/0x100 [drm] Apr 29 08:33:05 zfp kernel: [34730.861958] [<ffffffffc0058322>] drm_mode_setcrtc+0x3d2/0x4f0 [drm] Apr 29 08:33:05 zfp kernel: [34730.861988] [<ffffffffc0049712>] drm_ioctl+0x152/0x540 [drm] Apr 29 08:33:05 zfp kernel: [34730.862017] [<ffffffffc0057f50>] ? drm_mode_setplane+0x1b0/0x1b0 [drm] Apr 29 08:33:05 zfp kernel: [34730.862044] [<ffffffff812200ff>] do_vfs_ioctl+0x29f/0x490 Apr 29 08:33:05 zfp kernel: [34730.862066] [<ffffffff8108e081>] ? __set_task_blocked+0x41/0xa0 Apr 29 08:33:05 zfp kernel: [34730.862087] [<ffffffff81090a16>] ? __set_current_blocked+0x36/0x60 Apr 29 08:33:05 zfp kernel: [34730.862110] [<ffffffff81220369>] SyS_ioctl+0x79/0x90 Apr 29 08:33:05 zfp kernel: [34730.862130] [<ffffffff81090cce>] ? SyS_rt_sigprocmask+0x8e/0xc0 Apr 29 08:33:05 zfp kernel: [34730.862154] [<ffffffff818244f2>] entry_SYSCALL_64_fastpath+0x16/0x71 Apr 29 08:33:05 zfp kernel: [34730.862178] Code: e0 eb d1 49 8d 8e b8 02 00 00 49 8b 9f 30 04 00 00 48 89 cf 48 89 4d b8 e8 93 01 70 c1 49 83 be e8 02 00 00 00 48 8b 4d b8 74 6f <4c> 8b 63 28 4d 85 e4 74 66 49 3b 5c 24 20 74 46 49 8b 9c 24 30 Apr 29 08:33:05 zfp kernel: [34730.862314] RIP [<ffffffffc01221cb>] drm_dp_payload_send_msg+0x15b/0x210 [drm_kms_helper] Apr 29 08:33:05 zfp kernel: [34730.862349] RSP <ffff880428667ad8> Apr 29 08:33:05 zfp kernel: [34730.873457] ---[ end trace fe5e1f4d8234b524 ]--- And yesterday: Apr 28 09:49:13 zfp kernel: [10746.972447] general protection fault: 0000 [#1] SMP Apr 28 09:49:13 zfp kernel: [10746.972479] Modules linked in: ctr ccm xt_nat xt_tcpudp pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) rfcomm veth ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 xt_addrtype xt_conntrack nf_nat nf_conntrack br_netfilter bridge stp llc overlay xt_multiport iptable_filter ip_tables x_tables bnep arc4 intel_rapl uvcvideo x86_pkg_temp_thermal intel_powerclamp coretemp videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 snd_usb_audio videobuf2_core kvm_intel v4l2_common videodev snd_usbmidi_lib kvm btusb media btrtl btbcm irqbypass btintel bluetooth input_leds joydev serio_raw iwlmvm snd_hda_codec_hdmi mac80211 snd_seq_midi snd_seq_midi_event snd_rawmidi snd_hda_codec_realtek snd_hda_codec_generic thinkpad_acpi snd_seq iwlwifi snd_hda_intel nvram snd_hda_codec cfg80211 snd_hda_core snd_hwdep rtsx_pci_ms lpc_ich snd_pcm memstick mei_me snd_seq_device mei snd_timer snd soundcore shpchp ie31200_eda c edac_core mac_hid sch_fq_codel nfsd auth_rpcgss nfs_acl lockd parport_pc grace sunrpc ppdev lp parport autofs4 drbg ansi_cprng algif_skcipher af_alg dm_crypt hid_thingm hid_generic hid_logitech_hidpp hid_logitech_dj usbhid hid rtsx_pci_sdmmc crct10dif_pclmul crc32_pclmul nouveau aesni_intel i915 aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd psmouse mxm_wmi ttm i2c_algo_bit drm_kms_helper syscopyarea ahci sysfillrect sysimgblt libahci fb_sys_fops e1000e drm rtsx_pci ptp pps_core wmi fjes video Apr 28 09:49:13 zfp kernel: [10746.973274] CPU: 1 PID: 1525 Comm: Xorg Tainted: G OE 4.4.0-21-generic #37-Ubuntu Apr 28 09:49:13 zfp kernel: [10746.973306] Hardware name: LENOVO 20AN006LUS/20AN006LUS, BIOS GLET77WW (2.31 ) 01/27/2015 Apr 28 09:49:13 zfp kernel: [10746.973337] task: ffff880427583700 ti: ffff880422a98000 task.ti: ffff880422a98000 Apr 28 09:49:13 zfp kernel: [10746.973364] RIP: 0010:[<ffffffffc01131cb>] [<ffffffffc01131cb>] drm_dp_payload_send_msg+0x15b/0x210 [drm_kms_helper] Apr 28 09:49:13 zfp kernel: [10746.973411] RSP: 0018:ffff880422a9bad8 EFLAGS: 00010286 Apr 28 09:49:13 zfp kernel: [10746.973431] RAX: ffff880427583700 RBX: 61642a0a2222203a RCX: ffff880425aaa908 Apr 28 09:49:13 zfp kernel: [10746.973457] RDX: 0000000080000000 RSI: 61642a0a2222203a RDI: ffff880425aaa908 Apr 28 09:49:13 zfp kernel: [10746.973483] RBP: ffff880422a9bb28 R08: 000000000001a040 R09: ffffffffc011316b Apr 28 09:49:13 zfp kernel: [10746.973509] R10: ffffea000cefd600 R11: 0000000000000000 R12: ffff8800356e0d10 Apr 28 09:49:13 zfp kernel: [10746.973535] R13: ffff880425aaa650 R14: ffff880425aaa650 R15: ffff8804252ef800 Apr 28 09:49:13 zfp kernel: [10746.973562] FS: 00007f3b44ea0a00(0000) GS:ffff88043e240000(0000) knlGS:0000000000000000 Apr 28 09:49:13 zfp kernel: [10746.973591] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Apr 28 09:49:13 zfp kernel: [10746.973612] CR2: 00007f1aef9db624 CR3: 0000000425d9e000 CR4: 00000000001406e0 Apr 28 09:49:13 zfp kernel: [10746.973638] Stack: Apr 28 09:49:13 zfp kernel: [10746.973646] 6172542e616c736e ffff880425aaa908 ffff880422a9bb00 0000000000000001 Apr 28 09:49:13 zfp kernel: [10746.973677] 000000008a528246 0000000000000001 ffff8800356e0d10 ffff880425aaa650 Apr 28 09:49:13 zfp kernel: [10746.973708] 0000000000000001 ffff880425aaa9a0 ffff880422a9bb68 ffffffffc01137f2 Apr 28 09:49:13 zfp kernel: [10746.973740] Call Trace: Apr 28 09:49:13 zfp kernel: [10746.973754] [<ffffffffc01137f2>] drm_dp_update_payload_part2+0xc2/0x130 [drm_kms_helper] Apr 28 09:49:13 zfp kernel: [10746.973809] [<ffffffffc02accf7>] intel_mst_enable_dp+0xe7/0x110 [i915] Apr 28 09:49:13 zfp kernel: [10746.973849] [<ffffffffc028fcd1>] haswell_crtc_enable+0x421/0x870 [i915] Apr 28 09:49:13 zfp kernel: [10746.973889] [<ffffffffc02988d2>] ? intel_frontbuffer_flush+0x42/0x80 [i915] Apr 28 09:49:13 zfp kernel: [10746.973929] [<ffffffffc028cb64>] intel_atomic_commit+0x454/0x6f0 [i915] Apr 28 09:49:13 zfp kernel: [10746.973965] [<ffffffffc0072c47>] drm_atomic_commit+0x37/0x60 [drm] Apr 28 09:49:13 zfp kernel: [10746.973993] [<ffffffffc0117a06>] drm_atomic_helper_set_config+0x76/0xb0 [drm_kms_helper] Apr 28 09:49:13 zfp kernel: [10746.974031] [<ffffffffc0061e02>] drm_mode_set_config_internal+0x62/0x100 [drm] Apr 28 09:49:13 zfp kernel: [10746.974066] [<ffffffffc0066322>] drm_mode_setcrtc+0x3d2/0x4f0 [drm] Apr 28 09:49:13 zfp kernel: [10746.974096] [<ffffffffc0057712>] drm_ioctl+0x152/0x540 [drm] Apr 28 09:49:13 zfp kernel: [10746.974125] [<ffffffffc0065f50>] ? drm_mode_setplane+0x1b0/0x1b0 [drm] Apr 28 09:49:13 zfp kernel: [10746.974152] [<ffffffff812200ff>] do_vfs_ioctl+0x29f/0x490 Apr 28 09:49:13 zfp kernel: [10746.974174] [<ffffffff8108e081>] ? __set_task_blocked+0x41/0xa0 Apr 28 09:49:13 zfp kernel: [10746.974197] [<ffffffff81090a16>] ? __set_current_blocked+0x36/0x60 Apr 28 09:49:13 zfp kernel: [10746.974220] [<ffffffff81220369>] SyS_ioctl+0x79/0x90 Apr 28 09:49:13 zfp kernel: [10746.974240] [<ffffffff81090cce>] ? SyS_rt_sigprocmask+0x8e/0xc0 Apr 28 09:49:13 zfp kernel: [10746.974264] [<ffffffff818244f2>] entry_SYSCALL_64_fastpath+0x16/0x71 Apr 28 09:49:13 zfp kernel: [10746.974287] Code: e0 eb d1 49 8d 8e b8 02 00 00 49 8b 9f 30 04 00 00 48 89 cf 48 89 4d b8 e8 93 f1 70 c1 49 83 be e8 02 00 00 00 48 8b 4d b8 74 6f <4c> 8b 63 28 4d 85 e4 74 66 49 3b 5c 24 20 74 46 49 8b 9c 24 30 Apr 28 09:49:13 zfp kernel: [10746.974423] RIP [<ffffffffc01131cb>] drm_dp_payload_send_msg+0x15b/0x210 [drm_kms_helper] Apr 28 09:49:13 zfp kernel: [10746.974458] RSP <ffff880422a9bad8> Apr 28 09:49:13 zfp kernel: [10746.983852] ---[ end trace c06b1063bbf77920 ]--- The above happens when I run my "dock" script: #!/bin/dash xrandr --output DP2-1 --left-of eDP1 --off \ --output DP2-2 --right-of eDP1 --off xrandr --output DP2-1 --right-of eDP1 --auto xrandr --output DP2-2 --left-of eDP1 --auto ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-21-generic 4.4.0-21.37 ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6 Uname: Linux 4.4.0-21-generic x86_64 ApportVersion: 2.20.1-0ubuntu2 Architecture: amd64 Date: Fri Apr 29 08:42:30 2016 EcryptfsInUse: Yes HibernationDevice: RESUME=UUID=729dd129-ad72-4d34-87d2-b698d6f581ae InstallationDate: Installed on 2015-06-16 (317 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) MachineType: LENOVO 20AN006LUS ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-21-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.4.0-21-generic N/A linux-backports-modules-4.4.0-21-generic N/A linux-firmware 1.157 SourcePackage: linux UpgradeStatus: Upgraded to xenial on 2016-04-24 (4 days ago) dmi.bios.date: 01/27/2015 dmi.bios.vendor: LENOVO dmi.bios.version: GLET77WW (2.31 ) dmi.board.asset.tag: Not Available dmi.board.name: 20AN006LUS dmi.board.vendor: LENOVO dmi.board.version: 0B98401 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrGLET77WW(2.31):bd01/27/2015:svnLENOVO:pn20AN006LUS:pvrThinkPadT440p:rvnLENOVO:rn20AN006LUS:rvr0B98401WIN:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 20AN006LUS dmi.product.version: ThinkPad T440p dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1576764/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp