WARNING: CPU: 3 PID: 1033 at /build/linux-X28llO/linux-4.2.0/drivers/gpu/drm/i915/intel_display.c:12326 check_crtc_state+0x2c5/0x440 [i915]()

[Alvin]

No actual trouble, (except having to restart plasmashell manually after each login, but that might not be related). Logs are full of warnings:

Oct 01 14:52:39 pc-alvin kernel: [drm:intel_pipe_config_compare [i915]] *ERROR* mismatch in dpll_hw_state.wrpll (expected 0xb012040f, found 0x00000000)
Oct 01 14:52:39 pc-alvin kernel: ------------[ cut here ]------------
Oct 01 14:52:39 pc-alvin kernel: WARNING: CPU: 3 PID: 1033 at /build/linux-X28llO/linux-4.2.0/drivers/gpu/drm/i915/intel_display.c:12326 check_crtc_state+0x2c5/0x440 [i915]()
Oct 01 14:52:39 pc-alvin kernel: pipe state doesn't match!
Oct 01 14:52:39 pc-alvin kernel: Modules linked in: rfcomm bnep nls_iso8859_1 xfs libcrc32c intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm snd_hda_codec_hdmi snd_h
Oct 01 14:52:39 pc-alvin kernel: nf_conntrack_ftp nf_conntrack iptable_filter parport_pc ip_tables ppdev x_tables lp parport autofs4 drbg ansi_cprng algif_skcipher af_alg uas usb_storage hid_gener
Oct 01 14:52:39 pc-alvin kernel: CPU: 3 PID: 1033 Comm: Xorg Tainted: G W 4.2.0-12-generic #14-Ubuntu
Oct 01 14:52:39 pc-alvin kernel: Hardware name: FUJITSU D3222-B1/D3222-B1, BIOS V4.6.5.4 R1.37.0 for D3222-B1x 08/06/2015
Oct 01 14:52:39 pc-alvin kernel: ffffffffc027eab0 ffff8804087737e8 ffffffff817b0cd5 0000000000000000
Oct 01 14:52:39 pc-alvin kernel: ffff880408773838 ffff880408773828 ffffffff81076536 ffff880408773858
Oct 01 14:52:39 pc-alvin kernel: ffff8804087738c0 ffff88040ba1e800 0000000000000001 ffff88040ba1eb50
Oct 01 14:52:39 pc-alvin kernel: Call Trace:
Oct 01 14:52:39 pc-alvin kernel: [<ffffffff817b0cd5>] dump_stack+0x45/0x57
Oct 01 14:52:39 pc-alvin kernel: [<ffffffff81076536>] warn_slowpath_common+0x86/0xc0
Oct 01 14:52:39 pc-alvin kernel: [<ffffffff810765b6>] warn_slowpath_fmt+0x46/0x50
Oct 01 14:52:39 pc-alvin kernel: [<ffffffffc0211407>] ? intel_pipe_config_compare+0xa67/0xc60 [i915]
Oct 01 14:52:39 pc-alvin kernel: [<ffffffffc02118c5>] check_crtc_state+0x2c5/0x440 [i915]
Oct 01 14:52:39 pc-alvin kernel: [<ffffffffc02253de>] intel_modeset_check_state+0x20e/0x6b0 [i915]
Oct 01 14:52:39 pc-alvin kernel: [<ffffffffc0226587>] intel_crtc_set_config+0x4c7/0x580 [i915]
Oct 01 14:52:39 pc-alvin kernel: [<ffffffffc0039915>] ? drm_mode_create+0x25/0x60 [drm]
Oct 01 14:52:39 pc-alvin kernel: [<ffffffffc0033036>] drm_mode_set_config_internal+0x66/0x100 [drm]
Oct 01 14:52:39 pc-alvin kernel: [<ffffffffc00375f8>] drm_mode_setcrtc+0x3a8/0x4c0 [drm]
Oct 01 14:52:39 pc-alvin kernel: [<ffffffffc0028365>] drm_ioctl+0x125/0x610 [drm]
Oct 01 14:52:39 pc-alvin kernel: [<ffffffffc0037250>] ? drm_mode_setplane+0x1b0/0x1b0 [drm]
Oct 01 14:52:39 pc-alvin kernel: [<ffffffff81200075>] do_vfs_ioctl+0x285/0x470
Oct 01 14:52:39 pc-alvin kernel: [<ffffffff8108190f>] ? recalc_sigpending+0x1f/0x60
Oct 01 14:52:39 pc-alvin kernel: [<ffffffff810828b2>] ? __set_task_blocked+0x32/0x70
Oct 01 14:52:39 pc-alvin kernel: [<ffffffff812002d9>] SyS_ioctl+0x79/0x90
Oct 01 14:52:39 pc-alvin kernel: [<ffffffff817b7572>] entry_SYSCALL_64_fastpath+0x16/0x75
Oct 01 14:52:39 pc-alvin kernel: ---[ end trace 9b3399ab2e633e05 ]---

ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: linux-image-4.2.0-12-generic 4.2.0-12.14
ProcVersionSignature: Ubuntu 4.2.0-12.14-generic 4.2.1
Uname: Linux 4.2.0-12-generic x86_64
ApportVersion: 2.19-0ubuntu1
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: alvin 1495 F.... pulseaudio
 /dev/snd/controlC1: alvin 1495 F.... pulseaudio
CurrentDesktop: KDE
Date: Thu Oct 1 15:28:34 2015
HibernationDevice: RESUME=UUID=d6485f6e-2acf-4d0e-b368-65c0bb79b539
InstallationDate: Installed on 2015-10-01 (0 days ago)
InstallationMedia: Kubuntu 15.10 "Wily Werewolf" - Alpha amd64 (20150924)
IwConfig:
 enp0s25 no wireless extensions.

 lo no wireless extensions.
MachineType: FUJITSU D3222-B1
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.2.0-12-generic.efi.signed root=/dev/mapper/kubuntu-root ro noprompt quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-4.2.0-12-generic N/A
 linux-backports-modules-4.2.0-12-generic N/A
 linux-firmware 1.148
RfKill:
 0: hci0: Bluetooth
  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: 08/06/2015
dmi.bios.vendor: FUJITSU // American Megatrends Inc.
dmi.bios.version: V4.6.5.4 R1.37.0 for D3222-B1x
dmi.board.name: D3222-B1
dmi.board.vendor: FUJITSU
dmi.board.version: S26361-D3222-B1
dmi.chassis.type: 6
dmi.chassis.vendor: FUJITSU
dmi.modalias: dmi:bvnFUJITSU//AmericanMegatrendsInc.:bvrV4.6.5.4R1.37.0forD3222-B1x:bd08/06/2015:svnFUJITSU:pnD3222-B1:pvr:rvnFUJITSU:rnD3222-B1:rvrS26361-D3222-B1:cvnFUJITSU:ct6:cvr:
dmi.product.name: D3222-B1
dmi.sys.vendor: FUJITSU

[Joseph Salisbury (jsalisbury)]

Did this issue start happening after an update/upgrade? Was there a prior kernel version where you were not having this particular problem?

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.3 kernel[0].

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.3-rc3-unstable/

[Alvin (alvind)]

tagged as fixed upstream in Linux 4.3

[Alvin (alvind)]

I take that back. It is not fixed, but it does appear much less. Instead of constantly filling the logs, it took a while after switching to kernel 4.3.

[penalvch (penalvch)]

Alvin, could you please test the latest upstream kernel available from the very top line at the top of the page from http://kernel.ubuntu.com/~kernel-ppa/mainline/?C=N;O=D (the release names are irrelevant for testing, and please do not test the daily folder)? Install instructions are available at https://wiki.ubuntu.com/Kernel/MainlineBuilds . This will allow additional upstream developers to examine the issue.

If the latest kernel did not allow you to test to the issue (ex. you couldn't boot into the OS) please make a comment in your report about this, and continue to test the next most recent kernel version until you can test to the issue. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this issue is fixed in the mainline kernel, please add the following tags by clicking on the yellow circle with a black pencil icon, next to the word Tags, located at the bottom of the report description:
kernel-fixed-upstream
kernel-fixed-upstream-X.Y-rcZ

Where X, Y, and Z are numbers corresponding to the kernel version.

If the mainline kernel does not fix the issue, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-X.Y-rcZ

Please note, an error to install the kernel does not fit the criteria of kernel-bug-exists-upstream.

Once testing of the latest upstream kernel is complete, please mark this report's Status as Confirmed. Please let us know your results.

Thank you for your understanding.

[Alvin (alvind)]

I now tested with 4.3.0-040300rc4-generic
The error is still there, but now only appears once.

[penalvch (penalvch)]

Alvin, could you also please test for this via http://kernel.ubuntu.com/~kernel-ppa/mainline/drm-intel-nightly/current/ and advise to the results?

[Alvin (alvind)]

Tested with 4.3.0-994-generic_4.3.0-994.201510062200

New warning during installation:
W: Possible missing firmware /lib/firmware/i915/skl_guc_ver4.bin for module i915

The original error remains:
[drm:intel_pipe_config_compare [i915]] *ERROR* mismatch in dpll_hw_state.wrpll

A new warning appears in the log:

Oct 07 09:31:25 pc-alvin kernel: ------------[ cut here ]------------
Oct 07 09:31:25 pc-alvin kernel: WARNING: CPU: 0 PID: 238 at /home/kernel/COD/linux/drivers/gpu/drm/i915/i915_gem_context.c:141 i915_gem_context_free+0x1df/0x1f0 [i915]()
Oct 07 09:31:25 pc-alvin kernel: WARN_ON_ONCE(!ppgtt)
Oct 07 09:31:25 pc-alvin kernel: Modules linked in:
Oct 07 09:31:25 pc-alvin kernel: bnep nls_iso8859_1 xfs libcrc32c intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_
Oct 07 09:31:25 pc-alvin kernel: iptable_filter ip_tables parport_pc x_tables ppdev lp parport autofs4 drbg ansi_cprng algif_skcipher af_alg hid_generic hid_cherry usbhid hid dm_crypt uas usb_stor
Oct 07 09:31:25 pc-alvin kernel: CPU: 0 PID: 238 Comm: plymouthd Tainted: G W 4.3.0-994-generic #201510062200
Oct 07 09:31:25 pc-alvin kernel: Hardware name: FUJITSU D3222-B1/D3222-B1, BIOS V4.6.5.4 R1.37.0 for D3222-B1x 08/06/2015
Oct 07 09:31:25 pc-alvin kernel: ffffffffc02bf560 ffff880405fd3c38 ffffffff813a637d ffff880405fd3c80
Oct 07 09:31:25 pc-alvin kernel: ffff880405fd3c70 ffffffff8107a586 0000000000000000 0000000000000000
Oct 07 09:31:25 pc-alvin kernel: ffff880405cbc200 0000000000000000 ffff880405fd3d30 ffff880405fd3cd0
Oct 07 09:31:25 pc-alvin kernel: Call Trace:
Oct 07 09:31:25 pc-alvin kernel: [<ffffffff813a637d>] dump_stack+0x44/0x57
Oct 07 09:31:25 pc-alvin kernel: [<ffffffff8107a586>] warn_slowpath_common+0x86/0xc0
Oct 07 09:31:25 pc-alvin kernel: [<ffffffff8107a60c>] warn_slowpath_fmt+0x4c/0x50
Oct 07 09:31:25 pc-alvin kernel: [<ffffffffc02125df>] i915_gem_context_free+0x1df/0x1f0 [i915]
Oct 07 09:31:25 pc-alvin kernel: [<ffffffffc021260a>] context_idr_cleanup+0x1a/0x20 [i915]
Oct 07 09:31:25 pc-alvin kernel: [<ffffffff813a6b4b>] idr_for_each+0x9b/0xe0
Oct 07 09:31:25 pc-alvin kernel: [<ffffffffc02125f0>] ? i915_gem_context_free+0x1f0/0x1f0 [i915]
Oct 07 09:31:25 pc-alvin kernel: [<ffffffffc02135e3>] i915_gem_context_close+0x23/0x30 [i915]
Oct 07 09:31:25 pc-alvin kernel: [<ffffffffc02a1e5b>] i915_driver_preclose+0x2b/0x50 [i915]
Oct 07 09:31:25 pc-alvin kernel: [<ffffffffc0032b75>] drm_release+0xa5/0x500 [drm]
Oct 07 09:31:25 pc-alvin kernel: [<ffffffff811f38d4>] __fput+0xe4/0x210
Oct 07 09:31:25 pc-alvin kernel: [<ffffffff811f3a3e>] ____fput+0xe/0x10
Oct 07 09:31:25 pc-alvin kernel: [<ffffffff81096997>] task_work_run+0x77/0x90
Oct 07 09:31:25 pc-alvin kernel: [<ffffffff8107cf9d>] do_exit+0x2bd/0xaf0
Oct 07 09:31:25 pc-alvin kernel: [<ffffffff81065977>] ? __do_page_fault+0x1b7/0x430
Oct 07 09:31:25 pc-alvin kernel: [<ffffffff8107d84f>] do_group_exit+0x3f/0xa0
Oct 07 09:31:25 pc-alvin kernel: [<ffffffff8107d8c4>] SyS_exit_group+0x14/0x20
Oct 07 09:31:25 pc-alvin kernel: [<ffffffff817b3c76>] entry_SYSCALL_64_fastpath+0x16/0x75
Oct 07 09:31:25 pc-alvin kernel: ...

[penalvch (penalvch)]

Alvin, the issue you are reporting is an upstream one. Could you please report this problem following the instructions verbatim at https://wiki.ubuntu.com/Bugs/Upstream/kernel to the appropriate venue (intel-gfx)?

Please provide a direct URL to your newly made report when it becomes available so that it may be tracked.

Thank you for your understanding.

[Hanmac (hanmac)]

might be connected to this bug too: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1501260