It would be good to know what type of activity causes this bug. Does it
happen only when using video in you're browser, such as youtube? Does
it only happen when using Google Hangouts? Or, can you trigger the
screen blanking when only using a single application, such as email?
** Tags added: kernel-key
** Also affects: linux (Ubuntu Xenial)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Xenial)
Status: New => Triaged
** Changed in: linux (Ubuntu Xenial)
Importance: Undecided => High
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Matching subscriptions: Ubuntu 16.04 Bugs
https://bugs.launchpad.net/bugs/1643566
Title:
[i915_bpo] Intermittent display outage with external monitor
Status in linux package in Ubuntu:
Triaged
Status in linux source package in Xenial:
Triaged
Bug description:
Filing on behalf of Claire Newman...
I seem to be tickling a bug in the i915 stack, when I use a desktop
monitor. The symptom is that the screen blanks for a few seconds then
comes back . This happens every few minutes. I am using a Lenovo
Thinkpad T460s (new this weekend) but last week I was using a Thinkpad
W550s - same issue with the blank screen on both laptops.
Here is lspci output for the video card:
00:02.0 VGA compatible controller: Intel Corporation Sky Lake Integrated
Graphics (rev 07) (prog-if 00 [VGA controller])
Subsystem: Lenovo Skylake Integrated Graphics
Flags: bus master, fast devsel, latency 0, IRQ 123
Memory at e0000000 (64-bit, non-prefetchable) [size=16M]
Memory at c0000000 (64-bit, prefetchable) [size=512M]
I/O ports at e000 [size=64]
Expansion ROM at <unassigned> [disabled]
Capabilities: [40] Vendor Specific Information: Len=0c <?>
Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00
Capabilities: [ac] MSI: Enable+ Count=1/1 Maskable- 64bit-
Capabilities: [d0] Power Management version 2
Capabilities: [100] #1b
Capabilities: [200] Address Translation Service (ATS)
Capabilities: [300] #13
Kernel driver in use: i915_bpo
Kernel modules: i915_bpo
And in dmesg I see the below text:
[161321.406860] i915_bpo 0000:00:02.0: BAR 6: [??? 0x00000000 flags 0x2] has
bogus alignment
[161528.013954] ------------[ cut here ]------------
[161528.013996] WARNING: CPU: 3 PID: 31178 at
/build/linux-xHzv4a/linux-4.4.0/ubuntu/i915/intel_pm.c:3675
skl_update_other_pipe_wm+0x16c/0x180 [i915_bpo]()
[161528.013998] WARN_ON(!wm_changed)
[161528.014047] Modules linked in: hid_logitech_hidpp hid_generic
hid_logitech_dj usbhid hid snd_usb_audio snd_usbmidi_lib cpuid drbg ansi_cprng
ctr ccm rfcomm bnep snd_hda_codec_hdmi snd_hda_codec_realtek
snd_hda_codec_generic uvcvideo videobuf2_vmalloc videobuf2_memops
videobuf2_v4l2 videobuf2_core v4l2_common videodev media btusb btrtl btbcm
btintel bluetooth arc4 joydev intel_rapl x86_pkg_temp_thermal intel_powerclamp
coretemp nls_iso8859_1 kvm snd_soc_skl snd_soc_skl_ipc snd_hda_ext_core
snd_soc_sst_ipc snd_soc_sst_dsp snd_soc_core irqbypass crct10dif_pclmul
crc32_pclmul aesni_intel snd_compress ac97_bus aes_x86_64 snd_pcm_dmaengine
dw_dmac_core iwlmvm lrw snd_hda_intel gf128mul glue_helper snd_hda_codec
ablk_helper mac80211 cryptd snd_hda_core snd_hwdep snd_pcm input_leds serio_raw
iwlwifi rtsx_pci_ms
[161528.014074] cfg80211 memstick snd_seq_midi thinkpad_acpi
snd_seq_midi_event snd_rawmidi nvram mei_me mei shpchp snd_seq snd_seq_device
snd_timer snd soundcore tpm_crb mac_hid parport_pc ppdev lp parport autofs4
rtsx_pci_sdmmc i915_bpo intel_ips i2c_algo_bit drm_kms_helper psmouse e1000e
syscopyarea sysfillrect sysimgblt ptp fb_sys_fops pps_core drm nvme rtsx_pci
wmi video fjes
[161528.014079] CPU: 3 PID: 31178 Comm: Xorg Not tainted 4.4.0-47-generic
#68-Ubuntu
[161528.014080] Hardware name: LENOVO 20F9CTO1WW/20F9CTO1WW, BIOS N1CET47W
(1.15 ) 08/08/2016
[161528.014085] 0000000000000286 00000000b170f762 ffff88027b36f600
ffffffff813f5aa3
[161528.014088] ffff88027b36f648 ffffffffc02a39a0 ffff88027b36f638
ffffffff81081262
[161528.014091] ffff880522e26000 ffff88003f96a148 ffff880522e27000
ffff880523193b78
[161528.014092] Call Trace:
[161528.014102] [<ffffffff813f5aa3>] dump_stack+0x63/0x90
[161528.014108] [<ffffffff81081262>] warn_slowpath_common+0x82/0xc0
[161528.014112] [<ffffffff810812fc>] warn_slowpath_fmt+0x5c/0x80
[161528.014144] [<ffffffffc01c4fec>] skl_update_other_pipe_wm+0x16c/0x180
[i915_bpo]
[161528.014175] [<ffffffffc01c5185>] skl_update_wm+0x185/0x610 [i915_bpo]
[161528.014224] [<ffffffffc02563af>] ?
intel_ddi_enable_transcoder_func+0x17f/0x260 [i915_bpo]
[161528.014273] [<ffffffffc01c8f0e>] intel_update_watermarks+0x1e/0x30
[i915_bpo]
[161528.014326] [<ffffffffc0238681>] haswell_crtc_enable+0x761/0x8e0
[i915_bpo]
[161528.014378] [<ffffffffc0223cbe>] ? intel_finish_crtc_commit+0xe/0x10
[i915_bpo]
[161528.014395] [<ffffffffc01786d4>] ?
drm_atomic_helper_commit_planes_on_crtc+0x154/0x270 [drm_kms_helper]
[161528.014449] [<ffffffffc0234586>] intel_atomic_commit+0x5d6/0x14a0
[i915_bpo]
[161528.014488] [<ffffffffc0078bde>] ? drm_atomic_check_only+0x18e/0x590
[drm]
[161528.014521] [<ffffffffc0079017>] drm_atomic_commit+0x37/0x60 [drm]
[161528.014538] [<ffffffffc0179e4f>] restore_fbdev_mode+0x22f/0x260
[drm_kms_helper]
[161528.014571] [<ffffffffc007779a>] ? drm_modeset_lock_all_ctx+0x9a/0xb0
[drm]
[161528.014587] [<ffffffffc017c023>]
drm_fb_helper_restore_fbdev_mode_unlocked+0x33/0x80 [drm_kms_helper]
[161528.014601] [<ffffffffc017c09d>] drm_fb_helper_set_par+0x2d/0x50
[drm_kms_helper]
[161528.014615] [<ffffffffc017bfa2>] drm_fb_helper_hotplug_event+0xd2/0x120
[drm_kms_helper]
[161528.014628] [<ffffffffc017c046>]
drm_fb_helper_restore_fbdev_mode_unlocked+0x56/0x80 [drm_kms_helper]
[161528.014640] [<ffffffffc017c09d>] drm_fb_helper_set_par+0x2d/0x50
[drm_kms_helper]
[161528.014694] [<ffffffffc024e5ba>] intel_fbdev_set_par+0x1a/0x60 [i915_bpo]
[161528.014698] [<ffffffff81478f86>] fb_set_var+0x236/0x460
[161528.014704] [<ffffffff812a0b58>] ? ext4_dirty_inode+0x48/0x70
[161528.014709] [<ffffffff812cdec8>] ?
__ext4_handle_dirty_metadata+0x48/0x1f0
[161528.014714] [<ffffffff8124538b>] ? __getblk_gfp+0x2b/0x60
[161528.014720] [<ffffffff8146f27f>] fbcon_blank+0x30f/0x350
[161528.014727] [<ffffffff81506633>] do_unblank_screen+0xd3/0x1a0
[161528.014733] [<ffffffff814fbc9a>] vt_ioctl+0x50a/0x12f0
[161528.014739] [<ffffffff814ef15f>] tty_ioctl+0x35f/0xc40
[161528.014745] [<ffffffff81224d38>] ? dput+0xb8/0x220
[161528.014749] [<ffffffff8122e514>] ? mntput+0x24/0x40
[161528.014754] [<ffffffff8120f960>] ? __fput+0x190/0x220
[161528.014758] [<ffffffff8122156f>] do_vfs_ioctl+0x29f/0x490
[161528.014763] [<ffffffff8120fa2e>] ? ____fput+0xe/0x10
[161528.014769] [<ffffffff8109ee06>] ? task_work_run+0x86/0xa0
[161528.014772] [<ffffffff812217d9>] SyS_ioctl+0x79/0x90
[161528.014778] [<ffffffff81834ff2>] entry_SYSCALL_64_fastpath+0x16/0x71
[161528.014781] ---[ end trace 68b4b3ecbd0a020b ]---
[161528.808324] usb 1-4.1: reset high-speed USB device number 7 using xhci_hcd
[161536.339941] ------------[ cut here ]------------
[161536.339974] WARNING: CPU: 3 PID: 32686 at
/build/linux-xHzv4a/linux-4.4.0/drivers/gpu/drm/drm_irq.c:1317
drm_wait_one_vblank+0x17b/0x1c0 [drm]()
[161536.339976] vblank not available on crtc 0, ret=-22
[161536.340032] Modules linked in: hid_logitech_hidpp hid_generic
hid_logitech_dj usbhid hid snd_usb_audio snd_usbmidi_lib cpuid drbg ansi_cprng
ctr ccm rfcomm bnep snd_hda_codec_hdmi snd_hda_codec_realtek
snd_hda_codec_generic uvcvideo videobuf2_vmalloc videobuf2_memops
videobuf2_v4l2 videobuf2_core v4l2_common videodev media btusb btrtl btbcm
btintel bluetooth arc4 joydev intel_rapl x86_pkg_temp_thermal intel_powerclamp
coretemp nls_iso8859_1 kvm snd_soc_skl snd_soc_skl_ipc snd_hda_ext_core
snd_soc_sst_ipc snd_soc_sst_dsp snd_soc_core irqbypass crct10dif_pclmul
crc32_pclmul aesni_intel snd_compress ac97_bus aes_x86_64 snd_pcm_dmaengine
dw_dmac_core iwlmvm lrw snd_hda_intel gf128mul glue_helper snd_hda_codec
ablk_helper mac80211 cryptd snd_hda_core snd_hwdep snd_pcm input_leds serio_raw
iwlwifi rtsx_pci_ms
[161536.340062] cfg80211 memstick snd_seq_midi thinkpad_acpi
snd_seq_midi_event snd_rawmidi nvram mei_me mei shpchp snd_seq snd_seq_device
snd_timer snd soundcore tpm_crb mac_hid parport_pc ppdev lp parport autofs4
rtsx_pci_sdmmc i915_bpo intel_ips i2c_algo_bit drm_kms_helper psmouse e1000e
syscopyarea sysfillrect sysimgblt ptp fb_sys_fops pps_core drm nvme rtsx_pci
wmi video fjes
[161536.340067] CPU: 3 PID: 32686 Comm: Xorg Tainted: G W
4.4.0-47-generic #68-Ubuntu
[161536.340069] Hardware name: LENOVO 20F9CTO1WW/20F9CTO1WW, BIOS N1CET47W
(1.15 ) 08/08/2016
[161536.340074] 0000000000000286 00000000e1424e2f ffff880525fef6d0
ffffffff813f5aa3
[161536.340077] ffff880525fef718 ffffffffc008fb38 ffff880525fef708
ffffffff81081262
[161536.340081] ffff880523193800 0000000000000000 ffff8805225eb800
ffff880523193b68
[161536.340082] Call Trace:
[161536.340092] [<ffffffff813f5aa3>] dump_stack+0x63/0x90
[161536.340099] [<ffffffff81081262>] warn_slowpath_common+0x82/0xc0
[161536.340104] [<ffffffff810812fc>] warn_slowpath_fmt+0x5c/0x80
[161536.340126] [<ffffffffc005f054>] ? drm_vblank_get+0x74/0xc0 [drm]
[161536.340148] [<ffffffffc005f2ab>] drm_wait_one_vblank+0x17b/0x1c0 [drm]
[161536.340205] [<ffffffffc020f190>] ? hsw_write16+0x10/0x10 [i915_bpo]
[161536.340257] [<ffffffffc020f190>] ? hsw_write16+0x10/0x10 [i915_bpo]
[161536.340293] [<ffffffffc01c54b9>] skl_update_wm+0x4b9/0x610 [i915_bpo]
[161536.340329] [<ffffffffc01c8f0e>] intel_update_watermarks+0x1e/0x30
[i915_bpo]
[161536.340382] [<ffffffffc0238681>] haswell_crtc_enable+0x761/0x8e0
[i915_bpo]
[161536.340436] [<ffffffffc0234586>] intel_atomic_commit+0x5d6/0x14a0
[i915_bpo]
[161536.340473] [<ffffffffc0078bde>] ? drm_atomic_check_only+0x18e/0x590
[drm]
[161536.340510] [<ffffffffc0079017>] drm_atomic_commit+0x37/0x60 [drm]
[161536.340535] [<ffffffffc0179e4f>] restore_fbdev_mode+0x22f/0x260
[drm_kms_helper]
[161536.340574] [<ffffffffc007779a>] ? drm_modeset_lock_all_ctx+0x9a/0xb0
[drm]
[161536.340591] [<ffffffffc017c023>]
drm_fb_helper_restore_fbdev_mode_unlocked+0x33/0x80 [drm_kms_helper]
[161536.340605] [<ffffffffc017c09d>] drm_fb_helper_set_par+0x2d/0x50
[drm_kms_helper]
[161536.340659] [<ffffffffc024e5ba>] intel_fbdev_set_par+0x1a/0x60 [i915_bpo]
[161536.340663] [<ffffffff8147903f>] ? fb_set_var+0x2ef/0x460
[161536.340666] [<ffffffff81478f86>] fb_set_var+0x236/0x460
[161536.340672] [<ffffffff8170ca97>] ? sock_poll+0x107/0x120
[161536.340678] [<ffffffff81223416>] ? do_sys_poll+0x146/0x560
[161536.340681] [<ffffffff810b4f59>] ? update_curr+0x79/0x160
[161536.340687] [<ffffffff8146f27f>] fbcon_blank+0x30f/0x350
[161536.340691] [<ffffffff810ab329>] ? ttwu_do_wakeup+0x19/0xe0
[161536.340698] [<ffffffff81506633>] do_unblank_screen+0xd3/0x1a0
[161536.340704] [<ffffffff814fb709>] complete_change_console+0x59/0xe0
[161536.340709] [<ffffffff814fbea0>] vt_ioctl+0x710/0x12f0
[161536.340731] [<ffffffffc005d789>] ? drm_ioctl+0x189/0x540 [drm]
[161536.340737] [<ffffffff814ef15f>] tty_ioctl+0x35f/0xc40
[161536.340744] [<ffffffff811c082d>] ? handle_mm_fault+0xcdd/0x1820
[161536.340748] [<ffffffff8122156f>] do_vfs_ioctl+0x29f/0x490
[161536.340752] [<ffffffff8106b504>] ? __do_page_fault+0x1b4/0x400
[161536.340755] [<ffffffff812217d9>] SyS_ioctl+0x79/0x90
[161536.340761] [<ffffffff81834ff2>] entry_SYSCALL_64_fastpath+0x16/0x71
[161536.340793] ---[ end trace 68b4b3ecbd0a020c ]---
[161536.380101] ------------[ cut here ]------------
[161536.380122] WARNING: CPU: 3 PID: 32686 at
/build/linux-xHzv4a/linux-4.4.0/ubuntu/i915/intel_pm.c:3675
skl_update_other_pipe_wm+0x16c/0x180 [i915_bpo]()
[161536.380123] WARN_ON(!wm_changed)
[161536.380145] Modules linked in: hid_logitech_hidpp hid_generic
hid_logitech_dj usbhid hid snd_usb_audio snd_usbmidi_lib cpuid drbg ansi_cprng
ctr ccm rfcomm bnep snd_hda_codec_hdmi snd_hda_codec_realtek
snd_hda_codec_generic uvcvideo videobuf2_vmalloc videobuf2_memops
videobuf2_v4l2 videobuf2_core v4l2_common videodev media btusb btrtl btbcm
btintel bluetooth arc4 joydev intel_rapl x86_pkg_temp_thermal intel_powerclamp
coretemp nls_iso8859_1 kvm snd_soc_skl snd_soc_skl_ipc snd_hda_ext_core
snd_soc_sst_ipc snd_soc_sst_dsp snd_soc_core irqbypass crct10dif_pclmul
crc32_pclmul aesni_intel snd_compress ac97_bus aes_x86_64 snd_pcm_dmaengine
dw_dmac_core iwlmvm lrw snd_hda_intel gf128mul glue_helper snd_hda_codec
ablk_helper mac80211 cryptd snd_hda_core snd_hwdep snd_pcm input_leds serio_raw
iwlwifi rtsx_pci_ms
[161536.380158] cfg80211 memstick snd_seq_midi thinkpad_acpi
snd_seq_midi_event snd_rawmidi nvram mei_me mei shpchp snd_seq snd_seq_device
snd_timer snd soundcore tpm_crb mac_hid parport_pc ppdev lp parport autofs4
rtsx_pci_sdmmc i915_bpo intel_ips i2c_algo_bit drm_kms_helper psmouse e1000e
syscopyarea sysfillrect sysimgblt ptp fb_sys_fops pps_core drm nvme rtsx_pci
wmi video fjes
[161536.380161] CPU: 3 PID: 32686 Comm: Xorg Tainted: G W
4.4.0-47-generic #68-Ubuntu
[161536.380161] Hardware name: LENOVO 20F9CTO1WW/20F9CTO1WW, BIOS N1CET47W
(1.15 ) 08/08/2016
[161536.380164] 0000000000000286 00000000e1424e2f ffff880525fef650
ffffffff813f5aa3
[161536.380165] ffff880525fef698 ffffffffc02a39a0 ffff880525fef688
ffffffff81081262
[161536.380167] ffff880522e26000 ffff88003f96a148 ffff880522e27000
ffff880523193b78
[161536.380167] Call Trace:
[161536.380172] [<ffffffff813f5aa3>] dump_stack+0x63/0x90
[161536.380175] [<ffffffff81081262>] warn_slowpath_common+0x82/0xc0
[161536.380177] [<ffffffff810812fc>] warn_slowpath_fmt+0x5c/0x80
[161536.380195] [<ffffffffc01c4fec>] skl_update_other_pipe_wm+0x16c/0x180
[i915_bpo]
[161536.380213] [<ffffffffc01c5185>] skl_update_wm+0x185/0x610 [i915_bpo]
[161536.380241] [<ffffffffc02563af>] ?
intel_ddi_enable_transcoder_func+0x17f/0x260 [i915_bpo]
[161536.380259] [<ffffffffc01c8f0e>] intel_update_watermarks+0x1e/0x30
[i915_bpo]
[161536.380286] [<ffffffffc0238681>] haswell_crtc_enable+0x761/0x8e0
[i915_bpo]
[161536.380313] [<ffffffffc0223cbe>] ? intel_finish_crtc_commit+0xe/0x10
[i915_bpo]
[161536.380322] [<ffffffffc01786d4>] ?
drm_atomic_helper_commit_planes_on_crtc+0x154/0x270 [drm_kms_helper]
[161536.380348] [<ffffffffc0234586>] intel_atomic_commit+0x5d6/0x14a0
[i915_bpo]
[161536.380367] [<ffffffffc0078bde>] ? drm_atomic_check_only+0x18e/0x590
[drm]
[161536.380384] [<ffffffffc0079017>] drm_atomic_commit+0x37/0x60 [drm]
[161536.380392] [<ffffffffc0179e4f>] restore_fbdev_mode+0x22f/0x260
[drm_kms_helper]
[161536.380409] [<ffffffffc007779a>] ? drm_modeset_lock_all_ctx+0x9a/0xb0
[drm]
[161536.380417] [<ffffffffc017c023>]
drm_fb_helper_restore_fbdev_mode_unlocked+0x33/0x80 [drm_kms_helper]
[161536.380424] [<ffffffffc017c09d>] drm_fb_helper_set_par+0x2d/0x50
[drm_kms_helper]
[161536.380450] [<ffffffffc024e5ba>] intel_fbdev_set_par+0x1a/0x60 [i915_bpo]
[161536.380452] [<ffffffff8147903f>] ? fb_set_var+0x2ef/0x460
[161536.380454] [<ffffffff81478f86>] fb_set_var+0x236/0x460
[161536.380456] [<ffffffff8170ca97>] ? sock_poll+0x107/0x120
[161536.380458] [<ffffffff81223416>] ? do_sys_poll+0x146/0x560
[161536.380460] [<ffffffff810b4f59>] ? update_curr+0x79/0x160
[161536.380463] [<ffffffff8146f27f>] fbcon_blank+0x30f/0x350
[161536.380465] [<ffffffff810ab329>] ? ttwu_do_wakeup+0x19/0xe0
[161536.380468] [<ffffffff81506633>] do_unblank_screen+0xd3/0x1a0
[161536.380471] [<ffffffff814fb709>] complete_change_console+0x59/0xe0
[161536.380473] [<ffffffff814fbea0>] vt_ioctl+0x710/0x12f0
[161536.380485] [<ffffffffc005d789>] ? drm_ioctl+0x189/0x540 [drm]
[161536.380487] [<ffffffff814ef15f>] tty_ioctl+0x35f/0xc40
[161536.380490] [<ffffffff811c082d>] ? handle_mm_fault+0xcdd/0x1820
[161536.380492] [<ffffffff8122156f>] do_vfs_ioctl+0x29f/0x490
[161536.380494] [<ffffffff8106b504>] ? __do_page_fault+0x1b4/0x400
[161536.380496] [<ffffffff812217d9>] SyS_ioctl+0x79/0x90
[161536.380498] [<ffffffff81834ff2>] entry_SYSCALL_64_fastpath+0x16/0x71
[161536.380511] ---[ end trace 68b4b3ecbd0a020d ]---
[162373.603247] ------------[ cut here ]------------
[162373.603313] WARNING: CPU: 2 PID: 386 at
/build/linux-xHzv4a/linux-4.4.0/ubuntu/i915/intel_pm.c:3675
skl_update_other_pipe_wm+0x16c/0x180 [i915_bpo]()
[162373.603315] WARN_ON(!wm_changed)
[162373.603387] Modules linked in: hid_logitech_hidpp hid_generic
hid_logitech_dj usbhid hid snd_usb_audio snd_usbmidi_lib cpuid drbg ansi_cprng
ctr ccm rfcomm bnep snd_hda_codec_hdmi snd_hda_codec_realtek
snd_hda_codec_generic uvcvideo videobuf2_vmalloc videobuf2_memops
videobuf2_v4l2 videobuf2_core v4l2_common videodev media btusb btrtl btbcm
btintel bluetooth arc4 joydev intel_rapl x86_pkg_temp_thermal intel_powerclamp
coretemp nls_iso8859_1 kvm snd_soc_skl snd_soc_skl_ipc snd_hda_ext_core
snd_soc_sst_ipc snd_soc_sst_dsp snd_soc_core irqbypass crct10dif_pclmul
crc32_pclmul aesni_intel snd_compress ac97_bus aes_x86_64 snd_pcm_dmaengine
dw_dmac_core iwlmvm lrw snd_hda_intel gf128mul glue_helper snd_hda_codec
ablk_helper mac80211 cryptd snd_hda_core snd_hwdep snd_pcm input_leds serio_raw
iwlwifi rtsx_pci_ms
[162373.603438] cfg80211 memstick snd_seq_midi thinkpad_acpi
snd_seq_midi_event snd_rawmidi nvram mei_me mei shpchp snd_seq snd_seq_device
snd_timer snd soundcore tpm_crb mac_hid parport_pc ppdev lp parport autofs4
rtsx_pci_sdmmc i915_bpo intel_ips i2c_algo_bit drm_kms_helper psmouse e1000e
syscopyarea sysfillrect sysimgblt ptp fb_sys_fops pps_core drm nvme rtsx_pci
wmi video fjes
[162373.603443] CPU: 2 PID: 386 Comm: kworker/2:1 Tainted: G W
4.4.0-47-generic #68-Ubuntu
[162373.603446] Hardware name: LENOVO 20F9CTO1WW/20F9CTO1WW, BIOS N1CET47W
(1.15 ) 08/08/2016
[162373.603455] Workqueue: events console_callback
[162373.603462] 0000000000000286 0000000057921fda ffff8805258b38a0
ffffffff813f5aa3
[162373.603467] ffff8805258b38e8 ffffffffc02a39a0 ffff8805258b38d8
ffffffff81081262
[162373.603472] ffff880522e27000 ffff88003f96a148 ffff880522e26000
ffff880523193b78
[162373.603473] Call Trace:
[162373.603484] [<ffffffff813f5aa3>] dump_stack+0x63/0x90
[162373.603492] [<ffffffff81081262>] warn_slowpath_common+0x82/0xc0
[162373.603497] [<ffffffff810812fc>] warn_slowpath_fmt+0x5c/0x80
[162373.603554] [<ffffffffc01c4fec>] skl_update_other_pipe_wm+0x16c/0x180
[i915_bpo]
[162373.603610] [<ffffffffc01c5185>] skl_update_wm+0x185/0x610 [i915_bpo]
[162373.603665] [<ffffffffc01c8f0e>] intel_update_watermarks+0x1e/0x30
[i915_bpo]
[162373.603739] [<ffffffffc02343f8>] intel_atomic_commit+0x448/0x14a0
[i915_bpo]
[162373.603789] [<ffffffffc0078bde>] ? drm_atomic_check_only+0x18e/0x590
[drm]
[162373.603834] [<ffffffffc0079017>] drm_atomic_commit+0x37/0x60 [drm]
[162373.603856] [<ffffffffc017750d>]
drm_atomic_helper_connector_dpms+0xed/0x1a0 [drm_kms_helper]
[162373.603878] [<ffffffffc017afd7>] drm_fb_helper_dpms.isra.8+0x97/0xe0
[drm_kms_helper]
[162373.603897] [<ffffffffc017b05d>] drm_fb_helper_blank+0x3d/0x90
[drm_kms_helper]
[162373.603971] [<ffffffffc024e55a>] intel_fbdev_blank+0x1a/0x60 [i915_bpo]
[162373.603976] [<ffffffff81478c76>] fb_blank+0x66/0xc0
[162373.603982] [<ffffffff8146f202>] fbcon_blank+0x292/0x350
[162373.603988] [<ffffffff810b9635>] ? put_prev_entity+0x35/0x7d0
[162373.603996] [<ffffffff810ec984>] ? lock_timer_base.isra.22+0x54/0x70
[162373.604002] [<ffffffff810eca8e>] ? try_to_del_timer_sync+0x5e/0x90
[162373.604008] [<ffffffff815068e0>] do_blank_screen+0x1c0/0x260
[162373.604013] [<ffffffff815076f7>] console_callback+0x77/0x180
[162373.604018] [<ffffffff81830866>] ? __schedule+0x3b6/0xa30
[162373.604025] [<ffffffff8109a4a5>] process_one_work+0x165/0x480
[162373.604030] [<ffffffff8109a80b>] worker_thread+0x4b/0x4c0
[162373.604036] [<ffffffff8109a7c0>] ? process_one_work+0x480/0x480
[162373.604041] [<ffffffff8109a7c0>] ? process_one_work+0x480/0x480
[162373.604046] [<ffffffff810a09e8>] kthread+0xd8/0xf0
[162373.604051] [<ffffffff810a0910>] ? kthread_create_on_node+0x1e0/0x1e0
[162373.604056] [<ffffffff8183538f>] ret_from_fork+0x3f/0x70
[162373.604061] [<ffffffff810a0910>] ? kthread_create_on_node+0x1e0/0x1e0
[162373.604064] ---[ end trace 68b4b3ecbd0a020e ]---
[227004.455208] ------------[ cut here ]------------
[227004.455227] WARNING: CPU: 2 PID: 3435 at
/build/linux-xHzv4a/linux-4.4.0/ubuntu/i915/intel_pm.c:3675
skl_update_other_pipe_wm+0x16c/0x180 [i915_bpo]()
[227004.455228] WARN_ON(!wm_changed)
[227004.455252] Modules linked in: hid_logitech_hidpp hid_generic
hid_logitech_dj usbhid hid snd_usb_audio snd_usbmidi_lib cpuid drbg ansi_cprng
ctr ccm rfcomm bnep snd_hda_codec_hdmi snd_hda_codec_realtek
snd_hda_codec_generic uvcvideo videobuf2_vmalloc videobuf2_memops
videobuf2_v4l2 videobuf2_core v4l2_common videodev media btusb btrtl btbcm
btintel bluetooth arc4 joydev intel_rapl x86_pkg_temp_thermal intel_powerclamp
coretemp nls_iso8859_1 kvm snd_soc_skl snd_soc_skl_ipc snd_hda_ext_core
snd_soc_sst_ipc snd_soc_sst_dsp snd_soc_core irqbypass crct10dif_pclmul
crc32_pclmul aesni_intel snd_compress ac97_bus aes_x86_64 snd_pcm_dmaengine
dw_dmac_core iwlmvm lrw snd_hda_intel gf128mul glue_helper snd_hda_codec
ablk_helper mac80211 cryptd snd_hda_core snd_hwdep snd_pcm input_leds serio_raw
iwlwifi rtsx_pci_ms
[227004.455265] cfg80211 memstick snd_seq_midi thinkpad_acpi
snd_seq_midi_event snd_rawmidi nvram mei_me mei shpchp snd_seq snd_seq_device
snd_timer snd soundcore tpm_crb mac_hid parport_pc ppdev lp parport autofs4
rtsx_pci_sdmmc i915_bpo intel_ips i2c_algo_bit drm_kms_helper psmouse e1000e
syscopyarea sysfillrect sysimgblt ptp fb_sys_fops pps_core drm nvme rtsx_pci
wmi video fjes
[227004.455267] CPU: 2 PID: 3435 Comm: kworker/2:1 Tainted: G W
4.4.0-47-generic #68-Ubuntu
[227004.455267] Hardware name: LENOVO 20F9CTO1WW/20F9CTO1WW, BIOS N1CET47W
(1.15 ) 08/08/2016
[227004.455271] Workqueue: events console_callback
[227004.455273] 0000000000000286 00000000b13cc7b9 ffff880523d27818
ffffffff813f5aa3
[227004.455274] ffff880523d27860 ffffffffc02a39a0 ffff880523d27850
ffffffff81081262
[227004.455275] ffff880522e26000 ffff88003f96a148 ffff880522e27000
ffff880523193b78
[227004.455275] Call Trace:
[227004.455279] [<ffffffff813f5aa3>] dump_stack+0x63/0x90
[227004.455282] [<ffffffff81081262>] warn_slowpath_common+0x82/0xc0
[227004.455284] [<ffffffff810812fc>] warn_slowpath_fmt+0x5c/0x80
[227004.455296] [<ffffffffc01c4fec>] skl_update_other_pipe_wm+0x16c/0x180
[i915_bpo]
[227004.455308] [<ffffffffc01c5185>] skl_update_wm+0x185/0x610 [i915_bpo]
[227004.455326] [<ffffffffc02563af>] ?
intel_ddi_enable_transcoder_func+0x17f/0x260 [i915_bpo]
[227004.455338] [<ffffffffc01c8f0e>] intel_update_watermarks+0x1e/0x30
[i915_bpo]
[227004.455356] [<ffffffffc0238681>] haswell_crtc_enable+0x761/0x8e0
[i915_bpo]
[227004.455374] [<ffffffffc0234586>] intel_atomic_commit+0x5d6/0x14a0
[i915_bpo]
[227004.455388] [<ffffffffc0078bde>] ? drm_atomic_check_only+0x18e/0x590
[drm]
[227004.455400] [<ffffffffc0079017>] drm_atomic_commit+0x37/0x60 [drm]
[227004.455406] [<ffffffffc017750d>]
drm_atomic_helper_connector_dpms+0xed/0x1a0 [drm_kms_helper]
[227004.455412] [<ffffffffc017afd7>] drm_fb_helper_dpms.isra.8+0x97/0xe0
[drm_kms_helper]
[227004.455417] [<ffffffffc017b070>] drm_fb_helper_blank+0x50/0x90
[drm_kms_helper]
[227004.455434] [<ffffffffc024e55a>] intel_fbdev_blank+0x1a/0x60 [i915_bpo]
[227004.455436] [<ffffffff81478c76>] fb_blank+0x66/0xc0
[227004.455438] [<ffffffff8146f07e>] fbcon_blank+0x10e/0x350
[227004.455440] [<ffffffff810b700b>] ? dequeue_entity+0x41b/0xa80
[227004.455442] [<ffffffff810ec984>] ? lock_timer_base.isra.22+0x54/0x70
[227004.455444] [<ffffffff810ecb81>] ? internal_add_timer+0x71/0x80
[227004.455445] [<ffffffff810ee86f>] ? mod_timer+0x10f/0x240
[227004.455447] [<ffffffff81506633>] do_unblank_screen+0xd3/0x1a0
[227004.455448] [<ffffffff8150767c>] poke_blanked_console+0xbc/0xc0
[227004.455450] [<ffffffff815077d4>] console_callback+0x154/0x180
[227004.455452] [<ffffffff81830866>] ? __schedule+0x3b6/0xa30
[227004.455454] [<ffffffff8173918e>] ? rtnl_unlock+0xe/0x10
[227004.455456] [<ffffffff8109a4a5>] process_one_work+0x165/0x480
[227004.455458] [<ffffffff8109a80b>] worker_thread+0x4b/0x4c0
[227004.455459] [<ffffffff8109a7c0>] ? process_one_work+0x480/0x480
[227004.455461] [<ffffffff8109a7c0>] ? process_one_work+0x480/0x480
[227004.455462] [<ffffffff810a09e8>] kthread+0xd8/0xf0
[227004.455463] [<ffffffff810a0910>] ? kthread_create_on_node+0x1e0/0x1e0
[227004.455465] [<ffffffff8183538f>] ret_from_fork+0x3f/0x70
[227004.455466] [<ffffffff810a0910>] ? kthread_create_on_node+0x1e0/0x1e0
[227004.455467] ---[ end trace 68b4b3ecbd0a020f ]---
[227624.548049] ------------[ cut here ]------------
[227624.548104] WARNING: CPU: 2 PID: 3435 at
/build/linux-xHzv4a/linux-4.4.0/ubuntu/i915/intel_pm.c:3675
skl_update_other_pipe_wm+0x16c/0x180 [i915_bpo]()
[227624.548107] WARN_ON(!wm_changed)
[227624.548162] Modules linked in: hid_logitech_hidpp hid_generic
hid_logitech_dj usbhid hid snd_usb_audio snd_usbmidi_lib cpuid drbg ansi_cprng
ctr ccm rfcomm bnep snd_hda_codec_hdmi snd_hda_codec_realtek
snd_hda_codec_generic uvcvideo videobuf2_vmalloc videobuf2_memops
videobuf2_v4l2 videobuf2_core v4l2_common videodev media btusb btrtl btbcm
btintel bluetooth arc4 joydev intel_rapl x86_pkg_temp_thermal intel_powerclamp
coretemp nls_iso8859_1 kvm snd_soc_skl snd_soc_skl_ipc snd_hda_ext_core
snd_soc_sst_ipc snd_soc_sst_dsp snd_soc_core irqbypass crct10dif_pclmul
crc32_pclmul aesni_intel snd_compress ac97_bus aes_x86_64 snd_pcm_dmaengine
dw_dmac_core iwlmvm lrw snd_hda_intel gf128mul glue_helper snd_hda_codec
ablk_helper mac80211 cryptd snd_hda_core snd_hwdep snd_pcm input_leds serio_raw
iwlwifi rtsx_pci_ms
[227624.548206] cfg80211 memstick snd_seq_midi thinkpad_acpi
snd_seq_midi_event snd_rawmidi nvram mei_me mei shpchp snd_seq snd_seq_device
snd_timer snd soundcore tpm_crb mac_hid parport_pc ppdev lp parport autofs4
rtsx_pci_sdmmc i915_bpo intel_ips i2c_algo_bit drm_kms_helper psmouse e1000e
syscopyarea sysfillrect sysimgblt ptp fb_sys_fops pps_core drm nvme rtsx_pci
wmi video fjes
[227624.548212] CPU: 2 PID: 3435 Comm: kworker/2:1 Tainted: G W
4.4.0-47-generic #68-Ubuntu
[227624.548214] Hardware name: LENOVO 20F9CTO1WW/20F9CTO1WW, BIOS N1CET47W
(1.15 ) 08/08/2016
[227624.548224] Workqueue: events console_callback
[227624.548229] 0000000000000286 00000000b13cc7b9 ffff880523d278a0
ffffffff813f5aa3
[227624.548233] ffff880523d278e8 ffffffffc02a39a0 ffff880523d278d8
ffffffff81081262
[227624.548236] ffff880522e27000 ffff88003f96a148 ffff880522e26000
ffff880523193b78
[227624.548237] Call Trace:
[227624.548247] [<ffffffff813f5aa3>] dump_stack+0x63/0x90
[227624.548254] [<ffffffff81081262>] warn_slowpath_common+0x82/0xc0
[227624.548259] [<ffffffff810812fc>] warn_slowpath_fmt+0x5c/0x80
[227624.548301] [<ffffffffc01c4fec>] skl_update_other_pipe_wm+0x16c/0x180
[i915_bpo]
[227624.548341] [<ffffffffc01c5185>] skl_update_wm+0x185/0x610 [i915_bpo]
[227624.548379] [<ffffffffc01c8f0e>] intel_update_watermarks+0x1e/0x30
[i915_bpo]
[227624.548437] [<ffffffffc02343f8>] intel_atomic_commit+0x448/0x14a0
[i915_bpo]
[227624.548488] [<ffffffffc0078bde>] ? drm_atomic_check_only+0x18e/0x590
[drm]
[227624.548523] [<ffffffffc0079017>] drm_atomic_commit+0x37/0x60 [drm]
[227624.548541] [<ffffffffc017750d>]
drm_atomic_helper_connector_dpms+0xed/0x1a0 [drm_kms_helper]
[227624.548558] [<ffffffffc017afd7>] drm_fb_helper_dpms.isra.8+0x97/0xe0
[drm_kms_helper]
[227624.548573] [<ffffffffc017b05d>] drm_fb_helper_blank+0x3d/0x90
[drm_kms_helper]
[227624.548633] [<ffffffffc024e55a>] intel_fbdev_blank+0x1a/0x60 [i915_bpo]
[227624.548637] [<ffffffff81478c76>] fb_blank+0x66/0xc0
[227624.548643] [<ffffffff8146f202>] fbcon_blank+0x292/0x350
[227624.548650] [<ffffffff811ad179>] ? next_zone+0x29/0x30
[227624.548656] [<ffffffff811ae0b3>] ? refresh_cpu_vm_stats+0x103/0x1d0
[227624.548663] [<ffffffff810ec984>] ? lock_timer_base.isra.22+0x54/0x70
[227624.548668] [<ffffffff810eca8e>] ? try_to_del_timer_sync+0x5e/0x90
[227624.548674] [<ffffffff815068e0>] do_blank_screen+0x1c0/0x260
[227624.548678] [<ffffffff815076f7>] console_callback+0x77/0x180
[227624.548682] [<ffffffff81830866>] ? __schedule+0x3b6/0xa30
[227624.548688] [<ffffffff8109a4a5>] process_one_work+0x165/0x480
[227624.548693] [<ffffffff8109a80b>] worker_thread+0x4b/0x4c0
[227624.548697] [<ffffffff8109a7c0>] ? process_one_work+0x480/0x480
[227624.548701] [<ffffffff8109a7c0>] ? process_one_work+0x480/0x480
[227624.548708] [<ffffffff810a09e8>] kthread+0xd8/0xf0
[227624.548711] [<ffffffff810a0910>] ? kthread_create_on_node+0x1e0/0x1e0
[227624.548716] [<ffffffff8183538f>] ret_from_fork+0x3f/0x70
[227624.548719] [<ffffffff810a0910>] ? kthread_create_on_node+0x1e0/0x1e0
[227624.548722] ---[ end trace 68b4b3ecbd0a0210 ]---
[227808.485608] ------------[ cut here ]------------
[227808.485634] WARNING: CPU: 2 PID: 3435 at
/build/linux-xHzv4a/linux-4.4.0/ubuntu/i915/intel_pm.c:3675
skl_update_other_pipe_wm+0x16c/0x180 [i915_bpo]()
[227808.485635] WARN_ON(!wm_changed)
[227808.485667] Modules linked in: hid_logitech_hidpp hid_generic
hid_logitech_dj usbhid hid snd_usb_audio snd_usbmidi_lib cpuid drbg ansi_cprng
ctr ccm rfcomm bnep snd_hda_codec_hdmi snd_hda_codec_realtek
snd_hda_codec_generic uvcvideo videobuf2_vmalloc videobuf2_memops
videobuf2_v4l2 videobuf2_core v4l2_common videodev media btusb btrtl btbcm
btintel bluetooth arc4 joydev intel_rapl x86_pkg_temp_thermal intel_powerclamp
coretemp nls_iso8859_1 kvm snd_soc_skl snd_soc_skl_ipc snd_hda_ext_core
snd_soc_sst_ipc snd_soc_sst_dsp snd_soc_core irqbypass crct10dif_pclmul
crc32_pclmul aesni_intel snd_compress ac97_bus aes_x86_64 snd_pcm_dmaengine
dw_dmac_core iwlmvm lrw snd_hda_intel gf128mul glue_helper snd_hda_codec
ablk_helper mac80211 cryptd snd_hda_core snd_hwdep snd_pcm input_leds serio_raw
iwlwifi rtsx_pci_ms
[227808.485684] cfg80211 memstick snd_seq_midi thinkpad_acpi
snd_seq_midi_event snd_rawmidi nvram mei_me mei shpchp snd_seq snd_seq_device
snd_timer snd soundcore tpm_crb mac_hid parport_pc ppdev lp parport autofs4
rtsx_pci_sdmmc i915_bpo intel_ips i2c_algo_bit drm_kms_helper psmouse e1000e
syscopyarea sysfillrect sysimgblt ptp fb_sys_fops pps_core drm nvme rtsx_pci
wmi video fjes
[227808.485686] CPU: 2 PID: 3435 Comm: kworker/2:1 Tainted: G W
4.4.0-47-generic #68-Ubuntu
[227808.485687] Hardware name: LENOVO 20F9CTO1WW/20F9CTO1WW, BIOS N1CET47W
(1.15 ) 08/08/2016
[227808.485692] Workqueue: events console_callback
[227808.485695] 0000000000000286 00000000b13cc7b9 ffff880523d27818
ffffffff813f5aa3
[227808.485697] ffff880523d27860 ffffffffc02a39a0 ffff880523d27850
ffffffff81081262
[227808.485698] ffff880522e26000 ffff88003f96a148 ffff880522e27000
ffff880523193b78
[227808.485699] Call Trace:
[227808.485705] [<ffffffff813f5aa3>] dump_stack+0x63/0x90
[227808.485709] [<ffffffff81081262>] warn_slowpath_common+0x82/0xc0
[227808.485711] [<ffffffff810812fc>] warn_slowpath_fmt+0x5c/0x80
[227808.485729] [<ffffffffc01c4fec>] skl_update_other_pipe_wm+0x16c/0x180
[i915_bpo]
[227808.485747] [<ffffffffc01c5185>] skl_update_wm+0x185/0x610 [i915_bpo]
[227808.485774] [<ffffffffc02563af>] ?
intel_ddi_enable_transcoder_func+0x17f/0x260 [i915_bpo]
[227808.485805] [<ffffffffc01c8f0e>] intel_update_watermarks+0x1e/0x30
[i915_bpo]
[227808.485826] [<ffffffffc0238681>] haswell_crtc_enable+0x761/0x8e0
[i915_bpo]
[227808.485848] [<ffffffffc0234586>] intel_atomic_commit+0x5d6/0x14a0
[i915_bpo]
[227808.485865] [<ffffffffc0078bde>] ? drm_atomic_check_only+0x18e/0x590
[drm]
[227808.485879] [<ffffffffc0079017>] drm_atomic_commit+0x37/0x60 [drm]
[227808.485886] [<ffffffffc017750d>]
drm_atomic_helper_connector_dpms+0xed/0x1a0 [drm_kms_helper]
[227808.485893] [<ffffffffc017afd7>] drm_fb_helper_dpms.isra.8+0x97/0xe0
[drm_kms_helper]
[227808.485899] [<ffffffffc017b070>] drm_fb_helper_blank+0x50/0x90
[drm_kms_helper]
[227808.485919] [<ffffffffc024e55a>] intel_fbdev_blank+0x1a/0x60 [i915_bpo]
[227808.485921] [<ffffffff81478c76>] fb_blank+0x66/0xc0
[227808.485924] [<ffffffff8146f07e>] fbcon_blank+0x10e/0x350
[227808.485926] [<ffffffff810b700b>] ? dequeue_entity+0x41b/0xa80
[227808.485928] [<ffffffff8140a805>] ? find_next_bit+0x15/0x20
[227808.485931] [<ffffffff811ad126>] ? next_online_pgdat+0x26/0x50
[227808.485934] [<ffffffff810ec984>] ? lock_timer_base.isra.22+0x54/0x70
[227808.485936] [<ffffffff810ecb81>] ? internal_add_timer+0x71/0x80
[227808.485937] [<ffffffff810ee86f>] ? mod_timer+0x10f/0x240
[227808.485939] [<ffffffff81506633>] do_unblank_screen+0xd3/0x1a0
[227808.485941] [<ffffffff8150767c>] poke_blanked_console+0xbc/0xc0
[227808.485943] [<ffffffff815077d4>] console_callback+0x154/0x180
[227808.485945] [<ffffffff81830866>] ? __schedule+0x3b6/0xa30
[227808.485948] [<ffffffff8109a4a5>] process_one_work+0x165/0x480
[227808.485949] [<ffffffff8109a80b>] worker_thread+0x4b/0x4c0
[227808.485951] [<ffffffff8109a7c0>] ? process_one_work+0x480/0x480
[227808.485953] [<ffffffff8109a7c0>] ? process_one_work+0x480/0x480
[227808.485954] [<ffffffff810a09e8>] kthread+0xd8/0xf0
[227808.485956] [<ffffffff810a0910>] ? kthread_create_on_node+0x1e0/0x1e0
[227808.485958] [<ffffffff8183538f>] ret_from_fork+0x3f/0x70
[227808.485959] [<ffffffff810a0910>] ? kthread_create_on_node+0x1e0/0x1e0
[227808.485970] ---[ end trace 68b4b3ecbd0a0211 ]---
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