*ERROR* mismatch in ips_enabled

[Andrew Tonks]

no problems except I'm seeing a lot of traces in dmesg, about 40 times on boot, on Hewlett-Packard HP Pro x2 612 G1 Tablet, with or without docking station

[ 22.076275] ------------[ cut here ]------------
[ 22.076300] WARNING: CPU: 2 PID: 203 at /build/linux-26_gwp/linux-4.2.0/drivers/gpu/drm/i915/intel_display.c:12328 check_crtc_state+0x2c5/0x440 [i915]()
[ 22.076300] pipe state doesn't match!
[ 22.076323] Modules linked in: wacom_w8001 serport binfmt_misc bnep hid_sensor_gyro_3d hid_sensor_magn_3d hid_sensor_accel_3d hid_sensor_rotation hid_sensor_incl_3d hid_sensor_trigger industrialio_triggered_buffer hid_sensor_iio_common hid_sensor_custom arc4 hid_sensor_hub nls_iso8859_1 intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp coretemp hp_wmi kvm_intel sparse_keymap kvm crct10dif_pclmul crc32_pclmul snd_hda_codec_realtek aesni_intel snd_hda_codec_generic snd_hda_codec_hdmi aes_x86_64 iwlmvm lrw gf128mul snd_hda_intel mac80211 glue_helper ablk_helper snd_hda_codec cryptd snd_hda_core joydev snd_hwdep serio_raw iwlwifi snd_pcm cfg80211 rtsx_pci_ms snd_seq_midi memstick snd_seq_midi_event uvcvideo snd_rawmidi lpc_ich videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev
[ 22.076343] btusb btrtl media btbcm snd_seq btintel input_leds bluetooth snd_seq_device snd_timer hid_multitouch snd mei_me mei soundcore shpchp acpi_als 8250_dw dw_dmac kfifo_buf hp_accel 8250_fintek dw_dmac_core industrialio lis3lv02d soc_button_array i2c_designware_platform input_polldev mac_hid i2c_designware_core spi_pxa2xx_platform tpm_infineon intel_smartconnect hp_wireless parport_pc ppdev lp parport autofs4 hid_generic usbhid rtsx_pci_sdmmc i915 psmouse i2c_algo_bit drm_kms_helper ahci e1000e drm libahci rtsx_pci ptp pps_core wmi i2c_hid sdhci_acpi hid video sdhci
[ 22.076346] CPU: 2 PID: 203 Comm: plymouthd Tainted: G W 4.2.0-19-generic #23-Ubuntu
[ 22.076346] Hardware name: Hewlett-Packard HP Pro x2 612 G1 Tablet/221B, BIOS M83 Ver. 01.03 11/06/2014
[ 22.076349] 0000000000000000 000000007294313e ffff880035af34a8 ffffffff817e93f9
[ 22.076350] 0000000000000000 ffff880035af3500 ffff880035af34e8 ffffffff8107b3d6
[ 22.076351] ffff880035af3528 ffff880035af3590 ffff880240d54800 0000000000000001
[ 22.076351] Call Trace:
[ 22.076356] [<ffffffff817e93f9>] dump_stack+0x45/0x57
[ 22.076359] [<ffffffff8107b3d6>] warn_slowpath_common+0x86/0xc0
[ 22.076361] [<ffffffff8107b465>] warn_slowpath_fmt+0x55/0x70
[ 22.076373] [<ffffffffc0228941>] ? intel_pipe_config_compare+0xb31/0xc60 [i915]
[ 22.076383] [<ffffffffc0228d35>] check_crtc_state+0x2c5/0x440 [i915]
[ 22.076397] [<ffffffffc023cb5d>] intel_modeset_check_state+0x21d/0x6d0 [i915]
[ 22.076408] [<ffffffffc023dd17>] intel_crtc_set_config+0x4c7/0x580 [i915]
[ 22.076420] [<ffffffffc00a94a6>] drm_mode_set_config_internal+0x66/0x100 [drm]
[ 22.076425] [<ffffffffc017a692>] restore_fbdev_mode+0xc2/0xf0 [drm_kms_helper]
[ 22.076429] [<ffffffffc017c549>] drm_fb_helper_restore_fbdev_mode_unlocked+0x29/0x70 [drm_kms_helper]
[ 22.076432] [<ffffffffc017c5b2>] drm_fb_helper_set_par+0x22/0x40 [drm_kms_helper]
[ 22.076444] [<ffffffffc024b1aa>] intel_fbdev_set_par+0x1a/0x60 [i915]
[ 22.076446] [<ffffffff81448206>] fb_set_var+0x236/0x460
[ 22.076448] [<ffffffff810ac35c>] ? __enqueue_entity+0x6c/0x70
[ 22.076450] [<ffffffff810b11b1>] ? enqueue_entity+0x421/0xc30
[ 22.076451] [<ffffffff810b1cf2>] ? enqueue_task_fair+0x332/0x770
[ 22.076454] [<ffffffff8104c79d>] ? native_smp_send_reschedule+0x4d/0x70
[ 22.076456] [<ffffffff8143e462>] fbcon_blank+0x312/0x360
[ 22.076458] [<ffffffff81211773>] ? pollwake+0x73/0x90
[ 22.076461] [<ffffffff814d3ce3>] do_unblank_screen+0xd3/0x1a0
[ 22.076463] [<ffffffff814c91ca>] vt_ioctl+0x50a/0x12f0
[ 22.076469] [<ffffffffc00a2b87>] ? drm_dropmaster_ioctl+0x77/0x90 [drm]
[ 22.076472] [<ffffffff814bc4ac>] tty_ioctl+0x3cc/0xbc0
[ 22.076475] [<ffffffff817ef40c>] ? schedule_hrtimeout_range_clock.part.24+0xac/0x160
[ 22.076477] [<ffffffff817ef6a9>] ? schedule_hrtimeout_range_clock+0x19/0x40
[ 22.076478] [<ffffffff81210a25>] do_vfs_ioctl+0x295/0x480
[ 22.076481] [<ffffffff810a5b80>] ? wake_up_q+0x70/0x70
[ 22.076482] [<ffffffff81210c89>] SyS_ioctl+0x79/0x90
[ 22.076485] [<ffffffff817f01f2>] entry_SYSCALL_64_fastpath+0x16/0x75
[ 22.076486] ---[ end trace a105930a63a59b48 ]---

ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: linux-image-4.2.0-19-generic 4.2.0-19.23
ProcVersionSignature: Ubuntu 4.2.0-19.23-generic 4.2.6
Uname: Linux 4.2.0-19-generic x86_64
ApportVersion: 2.19.1-0ubuntu5
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: apt12 2016 F.... pulseaudio
 /dev/snd/controlC0: apt12 2016 F.... pulseaudio
CurrentDesktop: XFCE
Date: Wed Dec 2 15:59:04 2015
EcryptfsInUse: Yes
InstallationDate: Installed on 2015-02-25 (280 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
JournalErrors:
 No journal files were found.
 -- No entries --
MachineType: Hewlett-Packard HP Pro x2 612 G1 Tablet
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.2.0-19-generic.efi.signed root=/dev/mapper/ubuntu--vg-root ro quiet splash video.use_native_backlight=1 vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-4.2.0-19-generic N/A
 linux-backports-modules-4.2.0-19-generic N/A
 linux-firmware 1.149.2
SourcePackage: linux
UpgradeStatus: Upgraded to wily on 2015-10-29 (34 days ago)
WifiSyslog:

dmi.bios.date: 11/06/2014
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: M83 Ver. 01.03
dmi.board.name: 221B
dmi.board.vendor: Hewlett-Packard
dmi.board.version: KBC Version 58.50
dmi.chassis.asset.tag: 5CG507289V
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias: dmi:bvnHewlett-Packard:bvrM83Ver.01.03:bd11/06/2014:svnHewlett-Packard:pnHPProx2612G1Tablet:pvrA3008FD10B03:rvnHewlett-Packard:rn221B:rvrKBCVersion58.50:cvnHewlett-Packard:ct10:cvr:
dmi.product.name: HP Pro x2 612 G1 Tablet
dmi.product.version: A3008FD10B03
dmi.sys.vendor: Hewlett-Packard

[Brad Figg (brad-figg)]

This change was made by a bot.

[Nikolaj Sheller (nikolajsheller)]

[ 1.775356] ------------[ cut here ]------------
[ 1.775379] WARNING: CPU: 2 PID: 213 at /build/linux-NgsOGa/linux-4.2.0/drivers/gpu/drm/i915/intel_display.c:12328 check_crtc_state+0x2c5/0x440 [i915]()
[ 1.775380] pipe state doesn't match!
[ 1.775382] Modules linked in: uas usb_storage crct10dif_pclmul crc32_pclmul i915 aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd i2c_algo_bit psmouse drm
_kms_helper ahci r8169 libahci drm mii sdhci_acpi sdhci video i2c_hid hid
[ 1.775404] CPU: 2 PID: 213 Comm: plymouthd Not tainted 4.2.0-27-generic #32-Ubuntu
[ 1.775405] Hardware name: ZOTAC ZBOXNANO-CI520NANO/CI540NANO/ZBOXNANO-CI520NANO/CI540NANO, BIOS B213P104 09/11/2014
[ 1.775407] 0000000000000000 0000000089eb9c63 ffff88021161f7c8 ffffffff817eae99
[ 1.775411] 0000000000000000 ffff88021161f820 ffff88021161f808 ffffffff8107b9c6
[ 1.775414] ffff88021161f848 ffff88021161f8b0 ffff880211ed4000 0000000000000001
[ 1.775417] Call Trace:
[ 1.775424] [<ffffffff817eae99>] dump_stack+0x45/0x57
[ 1.775430] [<ffffffff8107b9c6>] warn_slowpath_common+0x86/0xc0
[ 1.775433] [<ffffffff8107ba55>] warn_slowpath_fmt+0x55/0x70
[ 1.775453] [<ffffffffc024d9e1>] ? intel_pipe_config_compare+0xb31/0xc60 [i915]
[ 1.775470] [<ffffffffc024ddd5>] check_crtc_state+0x2c5/0x440 [i915]
[ 1.775493] [<ffffffffc0261bfd>] intel_modeset_check_state+0x21d/0x6d0 [i915]
[ 1.775511] [<ffffffffc0262db7>] intel_crtc_set_config+0x4c7/0x580 [i915]
[ 1.775531] [<ffffffffc007bef5>] ? drm_mode_create+0x25/0x60 [drm]
[ 1.775546] [<ffffffffc00754a6>] drm_mode_set_config_internal+0x66/0x100 [drm]
[ 1.775560] [<ffffffffc0079b39>] drm_mode_setcrtc+0x3e9/0x500 [drm]
[ 1.775570] [<ffffffffc006a495>] drm_ioctl+0x125/0x610 [drm]
[ 1.775582] [<ffffffffc0079750>] ? drm_mode_setplane+0x1b0/0x1b0 [drm]
[ 1.775587] [<ffffffff812110b5>] do_vfs_ioctl+0x295/0x480
[ 1.775591] [<ffffffff81211319>] SyS_ioctl+0x79/0x90
[ 1.775594] [<ffffffff817f1c72>] entry_SYSCALL_64_fastpath+0x16/0x75
[ 1.775596] ---[ end trace 7ddf26038ba6c902 ]---
[ 1.778809] [drm:intel_pipe_config_compare [i915]] *ERROR* mismatch in ips_enabled (expected 1, found 0)
[ 1.778812] ------------[ cut here ]------------