Recently upgraded to 15.10, I keep receiving the above error message at boot time. The trace from journalctl is as follows:
Nov 07 09:13:10 Mizar-7G kernel: [drm:intel_pipe_config_compare [i915]] *ERROR* mismatch in ips_enabled (expected 1, found 0)
Nov 07 09:13:10 Mizar-7G kernel: ------------[ cut here ]------------
Nov 07 09:13:10 Mizar-7G kernel: WARNING: CPU: 0 PID: 830 at /build/linux-d3RvQM/linux-4.2.0/drivers/gpu/drm/i915/intel_display.c:12326 check_crtc_state+0x2c5/0x440 [i915](
Nov 07 09:13:10 Mizar-7G kernel: pipe state doesn't match!
Nov 07 09:13:10 Mizar-7G kernel: Modules linked in: ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 iptable_filter ip_tables
Nov 07 09:13:10 Mizar-7G kernel: memstick input_leds snd_rawmidi joydev serio_raw snd_seq mei_me snd_seq_device mei snd_timer dw_dmac dw_dmac_core snd soundcore spi_pxa2xx
Nov 07 09:13:10 Mizar-7G kernel: CPU: 0 PID: 830 Comm: Xorg Tainted: G W 4.2.0-17-generic #21-Ubuntu
Nov 07 09:13:10 Mizar-7G kernel: Hardware name: HaierComputer 7G-Series/JWU, BIOS KQ122 05/08/2014
Nov 07 09:13:10 Mizar-7G kernel: 0000000000000000 0000000037f28bd9 ffff880095747878 ffffffff817e8c09
Nov 07 09:13:10 Mizar-7G kernel: 0000000000000000 ffff8800957478d0 ffff8800957478b8 ffffffff8107b3c6
Nov 07 09:13:10 Mizar-7G kernel: ffff8800957478f8 ffff880095747960 ffff880159971800 0000000000000001
Nov 07 09:13:10 Mizar-7G kernel: Call Trace:
Nov 07 09:13:10 Mizar-7G kernel: [<ffffffff817e8c09>] dump_stack+0x45/0x57
Nov 07 09:13:10 Mizar-7G kernel: [<ffffffff8107b3c6>] warn_slowpath_common+0x86/0xc0
Nov 07 09:13:10 Mizar-7G kernel: [<ffffffff8107b455>] warn_slowpath_fmt+0x55/0x70
Nov 07 09:13:10 Mizar-7G kernel: [<ffffffffc01f2bc1>] ? intel_pipe_config_compare+0xb31/0xc60 [i915]
Nov 07 09:13:10 Mizar-7G kernel: [<ffffffffc01f2fb5>] check_crtc_state+0x2c5/0x440 [i915]
Nov 07 09:13:10 Mizar-7G kernel: [<ffffffffc0206d6d>] intel_modeset_check_state+0x21d/0x6d0 [i915]
Nov 07 09:13:10 Mizar-7G kernel: [<ffffffffc0207f27>] intel_crtc_set_config+0x4c7/0x580 [i915]
Nov 07 09:13:10 Mizar-7G kernel: [<ffffffffc00af4c6>] drm_mode_set_config_internal+0x66/0x100 [drm]
Nov 07 09:13:10 Mizar-7G kernel: [<ffffffffc016f632>] restore_fbdev_mode+0xc2/0xf0 [drm_kms_helper]
Nov 07 09:13:10 Mizar-7G kernel: [<ffffffffc01714e9>] drm_fb_helper_restore_fbdev_mode_unlocked+0x29/0x70 [drm_kms_helper]
Nov 07 09:13:10 Mizar-7G kernel: [<ffffffffc021607e>] intel_fbdev_restore_mode+0x1e/0x50 [i915]
Nov 07 09:13:10 Mizar-7G kernel: [<ffffffffc023fa9e>] i915_driver_lastclose+0xe/0x20 [i915]
Nov 07 09:13:10 Mizar-7G kernel: [<ffffffffc00a296e>] drm_lastclose+0x2e/0x140 [drm]
Nov 07 09:13:10 Mizar-7G kernel: [<ffffffffc00a2d96>] drm_release+0x316/0x500 [drm]
Nov 07 09:13:10 Mizar-7G kernel: [<ffffffff811fee84>] __fput+0xe4/0x220
Nov 07 09:13:10 Mizar-7G kernel: [<ffffffff811ff00e>] ____fput+0xe/0x10
Nov 07 09:13:10 Mizar-7G kernel: [<ffffffff81098b55>] task_work_run+0x85/0xb0
Nov 07 09:13:10 Mizar-7G kernel: [<ffffffff81014ea9>] do_notify_resume+0x69/0x70
Nov 07 09:13:10 Mizar-7G kernel: [<ffffffff817efbc4>] int_signal+0x12/0x17
Nov 07 09:13:10 Mizar-7G kernel: ---[ end trace 1301e0a37ced00d9 ]---
The system is a Haier-7G computer with Intel i3-4010U and only integrated graphics. I did not use to receive this error message while I was on kernel 3.19.
ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: linux-image-4.2.0-17-generic 4.2.0-17.21
ProcVersionSignature: Ubuntu 4.2.0-17.21-generic 4.2.3
Uname: Linux 4.2.0-17-generic x86_64
ApportVersion: 2.19.1-0ubuntu4
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: omer 1175 F.... pulseaudio
/dev/snd/controlC0: omer 1175 F.... pulseaudio
CurrentDesktop: KDE
Date: Sat Nov 7 09:24:44 2015
HibernationDevice: RESUME=UUID=51da27f2-5b88-4475-aa7d-9c814b0c6510
InstallationDate: Installed on 2015-10-25 (12 days ago)
InstallationMedia: Kubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
Lsusb:
Bus 003 Device 002: ID 8087:8000 Intel Corp.
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 002: ID 04f2:b439 Chicony Electronics Co., Ltd
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: HaierComputer 7G-Series
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-17-generic.efi.signed root=UUID=93f85e84-0f91-4ba6-8e13-bd2dde4ecd91 ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-4.2.0-17-generic N/A
linux-backports-modules-4.2.0-17-generic N/A
linux-firmware 1.149.1
RfKill:
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
SourcePackage: linux
UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/08/2014
dmi.bios.vendor: Insyde Corp.
dmi.bios.version: KQ122
dmi.board.asset.tag: Type2 - Board Asset Tag
dmi.board.name: JWU
dmi.board.vendor: Quanta
dmi.board.version: 01
dmi.chassis.asset.tag: Chassis Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: Quanta
dmi.chassis.version: US
dmi.modalias: dmi:bvnInsydeCorp.:bvrKQ122:bd05/08/2014:svnHaierComputer:pn7G-Series:pvr03:rvnQuanta:rnJWU:rvr01:cvnQuanta:ct10:cvrUS:
dmi.product.name: 7G-Series
dmi.product.version: 03
dmi.sys.vendor: HaierComputer
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