[ 3.584747] input: Microsoft Microsoft\xffffffc2\xffffffae\xffffffae 2.4GHz Transceiver v8.0 as /devices/pci0000:00/0000:00:14.0/usb1/1-13/1-13:1.0/0003:045E:0745.0004/input/input18 [ 3.640872] hid-generic 0003:045E:0745.0004: input,hidraw3: USB HID v1.11 Keyboard [Microsoft Microsoft\xffffffc2\xffffffae\xffffffae 2.4GHz Transceiver v8.0] on usb-0000:00:14.0-13/input0 [ 3.641059] input: Microsoft Microsoft\xffffffc2\xffffffae\xffffffae 2.4GHz Transceiver v8.0 as /devices/pci0000:00/0000:00:14.0/usb1/1-13/1-13:1.1/0003:045E:0745.0005/input/input19 [ 3.696941] hid-generic 0003:045E:0745.0005: input,hidraw4: USB HID v1.11 Mouse [Microsoft Microsoft\xffffffc2\xffffffae\xffffffae 2.4GHz Transceiver v8.0] on usb-0000:00:14.0-13/input1 [ 3.706459] input: Microsoft Microsoft\xffffffc2\xffffffae\xffffffae 2.4GHz Transceiver v8.0 as /devices/pci0000:00/0000:00:14.0/usb1/1-13/1-13:1.2/0003:045E:0745.0006/input/input20 [ 3.760561] hid-generic 0003:045E:0745.0006: input,hiddev0,hidraw5: USB HID v1.11 Device [Microsoft Microsoft\xffffffc2\xffffffae\xffffffae 2.4GHz Transceiver v8.0] on usb-0000:00:14.0-13/input2 [ 14.293696] init: alsa-restore main process (1525) terminated with status 99 [ 14.309039] bbswitch: version 0.7 [ 14.309044] bbswitch: Found integrated VGA device 0000:00:02.0: \_SB_.PCI0.GFX0 [ 14.309048] bbswitch: Found discrete VGA device 0000:01:00.0: \_SB_.PCI0.PEG0.PEGP [ 14.309050] bbswitch: Found discrete VGA device 0000:02:00.0: \_SB_.PCI0.PEG1.PEGP [ 14.309059] bbswitch: failed to evaluate \_SB_.PCI0.PEG1.PEGP._DSM {0xA0,0xA0,0x95,0x9D,0x60,0x00,0x48,0x4D,0xB3,0x4D,0x7E,0x5F,0xEA,0x12,0x9F,0xD4} 0x102 0x0 {0x00,0x00,0x00,0x00}: AE_NOT_FOUND [ 14.309064] ACPI Warning: \_SB_.PCI0.GFX0._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20150930/nsarguments-95) [ 14.309090] bbswitch: No suitable _DSM call found. [ 14.359846] NFSD: Using /var/lib/nfs/v4recovery as the NFSv4 state recovery directory [ 14.359945] NFSD: starting 90-second grace period (net ffffffff81ef8340) [ 14.394356] vboxdrv: Found 8 processor cores. [ 14.394615] vboxdrv: fAsync=0 offMin=0x176 offMax=0x392d [ 14.394665] vboxdrv: TSC mode is 'synchronous', kernel timer mode is 'normal'. [ 14.394666] vboxdrv: Successfully loaded version 4.3.36_Ubuntu (interface 0x001a000b). [ 14.403191] vboxpci: IOMMU not found (not registered) [ 14.498714] init: plymouth-upstart-bridge main process ended, respawning [ 18.153001] usb 1-7.2: current rate 117670 is different from the runtime rate 16000 [ 18.158356] usb 1-7.2: current rate 6 is different from the runtime rate 16000 [ 18.164374] usb 1-7.2: current rate 30 is different from the runtime rate 16000 [ 18.168449] usb 1-7.2: current rate 6 is different from the runtime rate 16000 [ 18.170428] usb 1-7.2: 3:1: cannot get min/max values for control 2 (id 3) [ 29.502858] init: plymouth-stop pre-start process (2417) terminated with status 1 [ 32.792550] audit_printk_skb: 33 callbacks suppressed [ 32.792552] audit: type=1400 audit(1490206115.735:28): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/lib/cups/backend/cups-pdf" pid=2449 comm="apparmor_parser" [ 32.792559] audit: type=1400 audit(1490206115.735:29): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/sbin/cupsd" pid=2449 comm="apparmor_parser" [ 123.545519] usb 1-7.2: current rate 843066 is different from the runtime rate 16000 [ 123.548225] usb 1-7.2: current rate 3 is different from the runtime rate 16000 [ 123.564311] usb 1-7.2: current rate 39 is different from the runtime rate 16000 [ 123.597199] usb 1-7.2: current rate 33186 is different from the runtime rate 16000 [ 123.599191] usb 1-7.2: 3:1: cannot get min/max values for control 2 (id 3) [ 145.032231] ------------[ cut here ]------------ [ 145.032288] WARNING: CPU: 2 PID: 1804 at /build/linux-lts-xenial-drAJVo/linux-lts-xenial-4.4.0/ubuntu/i915/intel_pm.c:3675 skl_update_other_pipe_wm+0x191/0x1a0 [i915_bpo]() [ 145.032292] WARN_ON(!wm_changed) [ 145.032295] Modules linked in: nfsv3 pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) autofs4 rpcsec_gss_krb5 nfsv4 usblp joydev input_leds ti_usb_3410_5052 usbserial hid_generic gspca_ov534 gspca_main v4l2_common videodev media snd_usb_audio snd_usbmidi_lib usbhid snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic nvidia_uvm(POE) uas usb_storage intel_rapl x86_pkg_temp_thermal intel_powerclamp mxm_wmi coretemp kvm_intel bnep kvm rfcomm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_intel snd_hda_codec snd_hda_core nvidia_drm(POE) nvidia_modeset(POE) snd_hwdep aesni_intel snd_pcm aes_x86_64 nvidia(POE) lrw gf128mul snd_seq_midi snd_seq_midi_event glue_helper ablk_helper snd_rawmidi cryptd snd_seq snd_seq_device snd_timer serio_raw snd soundcore nfsd i915_bpo auth_rpcgss nfs_acl nfs binfmt_misc lockd grace 8250_fintek hci_uart sunrpc intel_ips drm_kms_helper btbcm pinctrl_sunrisepoint btqca fscache pinctrl_intel btintel intel_lpss_acpi bluetooth i2c_hid intel_lpss drm hid video i2c_algo_bit fb_sys_fops syscopyarea sysfillrect sysimgblt shpchp mei_me mei mac_hid acpi_als wmi kfifo_buf industrialio acpi_pad parport_pc ppdev lp parport e1000e psmouse ptp pps_core ahci nvme libahci fjes [ 145.032436] CPU: 2 PID: 1804 Comm: Xorg Tainted: P W OE 4.4.0-66-generic #87~14.04.1-Ubuntu [ 145.032440] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./Z170 Extreme4, BIOS P7.00 09/09/2016 [ 145.032443] 0000000000000000 ffff88086e5879a0 ffffffff813dc80c ffff88086e5879e8 [ 145.032449] ffffffffc0556700 ffff88086e5879d8 ffffffff8107e9d6 ffff88086d89a000 [ 145.032455] ffff88086d89b000 0000000000000004 ffff880871924b78 ffff88086e587a64 [ 145.032460] Call Trace: [ 145.032470] [] dump_stack+0x63/0x87 [ 145.032479] [] warn_slowpath_common+0x86/0xc0 [ 145.032485] [] warn_slowpath_fmt+0x4c/0x50 [ 145.032524] [] skl_update_other_pipe_wm+0x191/0x1a0 [i915_bpo] [ 145.032561] [] skl_update_wm+0x19a/0x6f0 [i915_bpo] [ 145.032616] [] ? chv_write8+0x390/0x390 [i915_bpo] [ 145.032672] [] ? skl_ddi_pll_disable+0x70/0x80 [i915_bpo] [ 145.032708] [] intel_update_watermarks+0x1e/0x30 [i915_bpo] [ 145.032762] [] intel_atomic_commit+0x432/0x1440 [i915_bpo] [ 145.032803] [] ? drm_atomic_set_crtc_for_connector+0x44/0xf0 [drm] [ 145.032836] [] drm_atomic_commit+0x37/0x60 [drm] [ 145.032858] [] drm_atomic_helper_set_config+0x77/0xb0 [drm_kms_helper] [ 145.032888] [] drm_mode_set_config_internal+0x64/0x100 [drm] [ 145.032919] [] drm_mode_setcrtc+0xdd/0x4f0 [drm] [ 145.032941] [] drm_ioctl+0x25d/0x4f0 [drm] [ 145.032967] [] ? drm_mode_setplane+0x1c0/0x1c0 [drm] [ 145.032974] [] ? hrtimer_start_range_ns+0x1d5/0x370 [ 145.032982] [] do_vfs_ioctl+0x2dd/0x4c0 [ 145.032989] [] ? __sys_recvmsg+0x62/0x80 [ 145.032995] [] SyS_ioctl+0x79/0x90 [ 145.033001] [] entry_SYSCALL_64_fastpath+0x16/0x75 [ 145.033005] ---[ end trace f51213202db0a02a ]--- [ 145.033014] ------------[ cut here ]------------ [ 145.033055] WARNING: CPU: 2 PID: 1804 at /build/linux-lts-xenial-drAJVo/linux-lts-xenial-4.4.0/ubuntu/i915/intel_pm.c:3675 skl_update_other_pipe_wm+0x191/0x1a0 [i915_bpo]() [ 145.033058] WARN_ON(!wm_changed) [ 145.033060] Modules linked in: nfsv3 pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) autofs4 rpcsec_gss_krb5 nfsv4 usblp joydev input_leds ti_usb_3410_5052 usbserial hid_generic gspca_ov534 gspca_main v4l2_common videodev media snd_usb_audio snd_usbmidi_lib usbhid snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic nvidia_uvm(POE) uas usb_storage intel_rapl x86_pkg_temp_thermal intel_powerclamp mxm_wmi coretemp kvm_intel bnep kvm rfcomm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_intel snd_hda_codec snd_hda_core nvidia_drm(POE) nvidia_modeset(POE) snd_hwdep aesni_intel snd_pcm aes_x86_64 nvidia(POE) lrw gf128mul snd_seq_midi snd_seq_midi_event glue_helper ablk_helper snd_rawmidi cryptd snd_seq snd_seq_device snd_timer serio_raw snd soundcore nfsd i915_bpo auth_rpcgss nfs_acl nfs binfmt_misc lockd grace 8250_fintek hci_uart sunrpc intel_ips drm_kms_helper btbcm pinctrl_sunrisepoint btqca fscache pinctrl_intel btintel intel_lpss_acpi bluetooth i2c_hid intel_lpss drm hid video i2c_algo_bit fb_sys_fops syscopyarea sysfillrect sysimgblt shpchp mei_me mei mac_hid acpi_als wmi kfifo_buf industrialio acpi_pad parport_pc ppdev lp parport e1000e psmouse ptp pps_core ahci nvme libahci fjes [ 145.033284] CPU: 2 PID: 1804 Comm: Xorg Tainted: P W OE 4.4.0-66-generic #87~14.04.1-Ubuntu [ 145.033287] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./Z170 Extreme4, BIOS P7.00 09/09/2016 [ 145.033290] 0000000000000000 ffff88086e5879a0 ffffffff813dc80c ffff88086e5879e8 [ 145.033295] ffffffffc0556700 ffff88086e5879d8 ffffffff8107e9d6 ffff88086d898000 [ 145.033300] ffff88086d89b000 0000000000000004 ffff880871924b78 ffff88086e587a64 [ 145.033305] Call Trace: [ 145.033311] [] dump_stack+0x63/0x87 [ 145.033317] [] warn_slowpath_common+0x86/0xc0 [ 145.033323] [] warn_slowpath_fmt+0x4c/0x50 [ 145.033358] [] ? ironlake_irq_handler+0x660/0xba0 [i915_bpo] [ 145.033393] [] skl_update_other_pipe_wm+0x191/0x1a0 [i915_bpo] [ 145.033435] [] skl_update_wm+0x19a/0x6f0 [i915_bpo] [ 145.033491] [] ? chv_write8+0x390/0x390 [i915_bpo] [ 145.033551] [] ? skl_ddi_pll_disable+0x70/0x80 [i915_bpo] [ 145.033590] [] intel_update_watermarks+0x1e/0x30 [i915_bpo] [ 145.033649] [] intel_atomic_commit+0x432/0x1440 [i915_bpo] [ 145.033688] [] ? drm_atomic_set_crtc_for_connector+0x44/0xf0 [drm] [ 145.033720] [] drm_atomic_commit+0x37/0x60 [drm] [ 145.033743] [] drm_atomic_helper_set_config+0x77/0xb0 [drm_kms_helper] [ 145.033775] [] drm_mode_set_config_internal+0x64/0x100 [drm] [ 145.033805] [] drm_mode_setcrtc+0xdd/0x4f0 [drm] [ 145.033828] [] drm_ioctl+0x25d/0x4f0 [drm] [ 145.033853] [] ? drm_mode_setplane+0x1c0/0x1c0 [drm] [ 145.033860] [] ? hrtimer_start_range_ns+0x1d5/0x370 [ 145.033867] [] do_vfs_ioctl+0x2dd/0x4c0 [ 145.033872] [] ? __sys_recvmsg+0x62/0x80 [ 145.033879] [] SyS_ioctl+0x79/0x90 [ 145.033884] [] entry_SYSCALL_64_fastpath+0x16/0x75 [ 145.033887] ---[ end trace f51213202db0a02b ]--- [ 145.040751] [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe A FIFO underrun [ 145.041071] [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe B FIFO underrun [14702.313352] usb 1-7.2: current rate 15976949 is different from the runtime rate 16000 [14702.319781] usb 1-7.2: current rate 7 is different from the runtime rate 16000 [16363.335556] ------------[ cut here ]------------ [16363.335608] WARNING: CPU: 5 PID: 1804 at /build/linux-lts-xenial-drAJVo/linux-lts-xenial-4.4.0/ubuntu/i915/intel_pm.c:3675 skl_update_other_pipe_wm+0x191/0x1a0 [i915_bpo]() [16363.335611] WARN_ON(!wm_changed) [16363.335669] Modules linked in: nfsv3 pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) autofs4 rpcsec_gss_krb5 nfsv4 usblp joydev input_leds ti_usb_3410_5052 usbserial hid_generic gspca_ov534 gspca_main v4l2_common videodev media snd_usb_audio snd_usbmidi_lib usbhid snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic nvidia_uvm(POE) uas usb_storage intel_rapl x86_pkg_temp_thermal intel_powerclamp mxm_wmi coretemp kvm_intel bnep kvm rfcomm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_intel snd_hda_codec snd_hda_core nvidia_drm(POE) nvidia_modeset(POE) snd_hwdep aesni_intel snd_pcm aes_x86_64 nvidia(POE) lrw gf128mul snd_seq_midi snd_seq_midi_event glue_helper ablk_helper snd_rawmidi cryptd snd_seq snd_seq_device snd_timer serio_raw snd soundcore nfsd i915_bpo auth_rpcgss nfs_acl nfs binfmt_misc lockd grace 8250_fintek hci_uart sunrpc intel_ips drm_kms_helper btbcm pinctrl_sunrisepoint btqca fscache pinctrl_intel btintel intel_lpss_acpi bluetooth i2c_hid intel_lpss drm hid video i2c_algo_bit fb_sys_fops syscopyarea sysfillrect sysimgblt shpchp mei_me mei mac_hid acpi_als wmi kfifo_buf industrialio acpi_pad parport_pc ppdev lp parport e1000e psmouse ptp pps_core ahci nvme libahci fjes [16363.335708] CPU: 5 PID: 1804 Comm: Xorg Tainted: P W OE 4.4.0-66-generic #87~14.04.1-Ubuntu [16363.335710] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./Z170 Extreme4, BIOS P7.00 09/09/2016 [16363.335715] 0000000000000000 ffff88086e5876e0 ffffffff813dc80c ffff88086e587728 [16363.335719] ffffffffc0556700 ffff88086e587718 ffffffff8107e9d6 ffff88086d89a000 [16363.335722] ffff88086d89b000 0000000000000004 ffff880871924b78 ffff88086e5877a4 [16363.335723] Call Trace: [16363.335731] [] dump_stack+0x63/0x87 [16363.335738] [] warn_slowpath_common+0x86/0xc0 [16363.335742] [] warn_slowpath_fmt+0x4c/0x50 [16363.335781] [] skl_update_other_pipe_wm+0x191/0x1a0 [i915_bpo] [16363.335816] [] skl_update_wm+0x19a/0x6f0 [i915_bpo] [16363.335868] [] ? chv_write8+0x390/0x390 [i915_bpo] [16363.335923] [] ? skl_ddi_pll_disable+0x70/0x80 [i915_bpo] [16363.335958] [] intel_update_watermarks+0x1e/0x30 [i915_bpo] [16363.336009] [] intel_atomic_commit+0x432/0x1440 [i915_bpo] [16363.336048] [] ? drm_atomic_set_crtc_for_connector+0x44/0xf0 [drm] [16363.336079] [] drm_atomic_commit+0x37/0x60 [drm] [16363.336097] [] restore_fbdev_mode+0x22d/0x260 [drm_kms_helper] [16363.336127] [] ? drm_modeset_lock_all_ctx+0x97/0xb0 [drm] [16363.336142] [] drm_fb_helper_restore_fbdev_mode_unlocked+0x33/0x80 [drm_kms_helper] [16363.336154] [] drm_fb_helper_set_par+0x2c/0x50 [drm_kms_helper] [16363.336165] [] drm_fb_helper_hotplug_event+0xa2/0xf0 [drm_kms_helper] [16363.336175] [] drm_fb_helper_restore_fbdev_mode_unlocked+0x56/0x80 [drm_kms_helper] [16363.336184] [] drm_fb_helper_set_par+0x2c/0x50 [drm_kms_helper] [16363.336241] [] intel_fbdev_set_par+0x1a/0x60 [i915_bpo] [16363.336246] [] fb_set_var+0x191/0x400 [16363.336251] [] ? update_curr+0x80/0x170 [16363.336254] [] ? __enqueue_entity+0x6c/0x70 [16363.336257] [] ? enqueue_entity+0x3af/0xb50 [16363.336264] [] fbcon_blank+0x1bc/0x2b0 [16363.336273] [] do_unblank_screen+0xb8/0x1c0 [16363.336276] [] complete_change_console+0x5a/0xe0 [16363.336279] [] vt_ioctl+0xf1b/0x10d0 [16363.336282] [] tty_ioctl+0x3d4/0xbd0 [16363.336290] [] do_vfs_ioctl+0x2dd/0x4c0 [16363.336294] [] ? __do_page_fault+0x1b7/0x430 [16363.336299] [] SyS_ioctl+0x79/0x90 [16363.336304] [] entry_SYSCALL_64_fastpath+0x16/0x75 [16363.336307] ---[ end trace f51213202db0a02c ]--- [16363.336314] ------------[ cut here ]------------ [16363.336352] WARNING: CPU: 5 PID: 1804 at /build/linux-lts-xenial-drAJVo/linux-lts-xenial-4.4.0/ubuntu/i915/intel_pm.c:3675 skl_update_other_pipe_wm+0x191/0x1a0 [i915_bpo]() [16363.336354] WARN_ON(!wm_changed) [16363.336392] Modules linked in: nfsv3 pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) autofs4 rpcsec_gss_krb5 nfsv4 usblp joydev input_leds ti_usb_3410_5052 usbserial hid_generic gspca_ov534 gspca_main v4l2_common videodev media snd_usb_audio snd_usbmidi_lib usbhid snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic nvidia_uvm(POE) uas usb_storage intel_rapl x86_pkg_temp_thermal intel_powerclamp mxm_wmi coretemp kvm_intel bnep kvm rfcomm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_intel snd_hda_codec snd_hda_core nvidia_drm(POE) nvidia_modeset(POE) snd_hwdep aesni_intel snd_pcm aes_x86_64 nvidia(POE) lrw gf128mul snd_seq_midi snd_seq_midi_event glue_helper ablk_helper snd_rawmidi cryptd snd_seq snd_seq_device snd_timer serio_raw snd soundcore nfsd i915_bpo auth_rpcgss nfs_acl nfs binfmt_misc lockd grace 8250_fintek hci_uart sunrpc intel_ips drm_kms_helper btbcm pinctrl_sunrisepoint btqca fscache pinctrl_intel btintel intel_lpss_acpi bluetooth i2c_hid intel_lpss drm hid video i2c_algo_bit fb_sys_fops syscopyarea sysfillrect sysimgblt shpchp mei_me mei mac_hid acpi_als wmi kfifo_buf industrialio acpi_pad parport_pc ppdev lp parport e1000e psmouse ptp pps_core ahci nvme libahci fjes [16363.336423] CPU: 5 PID: 1804 Comm: Xorg Tainted: P W OE 4.4.0-66-generic #87~14.04.1-Ubuntu [16363.336425] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./Z170 Extreme4, BIOS P7.00 09/09/2016 [16363.336428] 0000000000000000 ffff88086e5876e0 ffffffff813dc80c ffff88086e587728 [16363.336431] ffffffffc0556700 ffff88086e587718 ffffffff8107e9d6 ffff88086d898000 [16363.336435] ffff88086d89b000 0000000000000004 ffff880871924b78 ffff88086e5877a4 [16363.336436] Call Trace: [16363.336439] [] dump_stack+0x63/0x87 [16363.336445] [] warn_slowpath_common+0x86/0xc0 [16363.336449] [] warn_slowpath_fmt+0x4c/0x50 [16363.336482] [] ? ironlake_irq_handler+0x660/0xba0 [i915_bpo] [16363.336516] [] skl_update_other_pipe_wm+0x191/0x1a0 [i915_bpo] [16363.336549] [] skl_update_wm+0x19a/0x6f0 [i915_bpo] [16363.336599] [] ? chv_write8+0x390/0x390 [i915_bpo] [16363.336650] [] ? skl_ddi_pll_disable+0x70/0x80 [i915_bpo] [16363.336683] [] intel_update_watermarks+0x1e/0x30 [i915_bpo] [16363.336732] [] intel_atomic_commit+0x432/0x1440 [i915_bpo] [16363.336767] [] ? drm_atomic_set_crtc_for_connector+0x44/0xf0 [drm] [16363.336796] [] drm_atomic_commit+0x37/0x60 [drm] [16363.336811] [] restore_fbdev_mode+0x22d/0x260 [drm_kms_helper] [16363.336840] [] ? drm_modeset_lock_all_ctx+0x97/0xb0 [drm] [16363.336855] [] drm_fb_helper_restore_fbdev_mode_unlocked+0x33/0x80 [drm_kms_helper] [16363.336866] [] drm_fb_helper_set_par+0x2c/0x50 [drm_kms_helper] [16363.336877] [] drm_fb_helper_hotplug_event+0xa2/0xf0 [drm_kms_helper] [16363.336887] [] drm_fb_helper_restore_fbdev_mode_unlocked+0x56/0x80 [drm_kms_helper] [16363.336897] [] drm_fb_helper_set_par+0x2c/0x50 [drm_kms_helper] [16363.336951] [] intel_fbdev_set_par+0x1a/0x60 [i915_bpo] [16363.336955] [] fb_set_var+0x191/0x400 [16363.336959] [] ? update_curr+0x80/0x170 [16363.336962] [] ? __enqueue_entity+0x6c/0x70 [16363.336965] [] ? enqueue_entity+0x3af/0xb50 [16363.336971] [] fbcon_blank+0x1bc/0x2b0 [16363.336978] [] do_unblank_screen+0xb8/0x1c0 [16363.336981] [] complete_change_console+0x5a/0xe0 [16363.336984] [] vt_ioctl+0xf1b/0x10d0 [16363.336987] [] tty_ioctl+0x3d4/0xbd0 [16363.336994] [] do_vfs_ioctl+0x2dd/0x4c0 [16363.336998] [] ? __do_page_fault+0x1b7/0x430 [16363.337002] [] SyS_ioctl+0x79/0x90 [16363.337006] [] entry_SYSCALL_64_fastpath+0x16/0x75 [16363.337009] ---[ end trace f51213202db0a02d ]--- [32419.055947] init: upstart-udev-bridge main process (374) terminated with status 1 [32419.055953] init: upstart-udev-bridge main process ended, respawning [32419.056019] init: upstart-socket-bridge main process (873) terminated with status 1 [32419.056022] init: upstart-socket-bridge main process ended, respawning [32419.056069] init: upstart-file-bridge main process (876) terminated with status 1 [32419.056073] init: upstart-file-bridge main process ended, respawning [32420.566977] init: upstart-udev-bridge main process (12138) terminated with status 1 [32420.566984] init: upstart-udev-bridge main process ended, respawning [32420.567058] init: upstart-socket-bridge main process (12143) terminated with status 1 [32420.567063] init: upstart-socket-bridge main process ended, respawning [32420.567112] init: upstart-file-bridge main process (12145) terminated with status 1 [32420.567116] init: upstart-file-bridge main process ended, respawning