Patrik Jansson, 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. ** Tags removed: bios-outdated-a16 ** Tags added: latest-bios-a16 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1513648 Title: [drm:intel_pipe_config_compare [i915]] *ERROR* mismatch in ips_enabled (expected 1, found 0) Status in linux package in Ubuntu: Incomplete Bug description: A few seconds after boot I get this message in the log (and wifi does not activate). Many things still work, but the system acts a bit confused. Sometimes it gets almost unsusable until reboot (and then there are more of those "cut here" sections in the log). Kind regards, Patrik [drm:intel_pipe_config_compare [i915]] *ERROR* mismatch in ips_enabled (expected 1, found 0) ------------[ cut here ]------------ [ 6.549187] WARNING: CPU: 2 PID: 1048 at /build/linux-AxjFAn/linux-4.2.0/drivers/gpu/drm/i915/intel_display.c:12326 check_crtc_state+0x2c5/0x440 [i915]() [ 6.549188] pipe state doesn't match! [ 6.549189] Modules linked in: iptable_filter ip_tables x_tables pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) binfmt_misc bnep pn544_mei mei_phy pn544 hci nfc arc4 dell_wmi joydev btusb btrtl btbcm sparse_keymap btintel bluetooth dell_laptop dcdbas dell_smm_hwmon uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev media intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm snd_soc_rt5640 iwlmvm snd_soc_rl6231 mac80211 snd_soc_core snd_compress snd_hda_codec_hdmi crct10dif_pclmul ac97_bus crc32_pclmul snd_pcm_dmaengine ghash_clmulni_intel snd_hda_codec_realtek snd_hda_codec_generic snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd iwlwifi snd_pcm input_leds serio_raw [ 6.549234] cfg80211 lpc_ich snd_seq_midi snd_seq_midi_event shpchp mei_me mei snd_rawmidi snd_seq snd_seq_device snd_timer snd 8250_fintek soundcore dw_dmac dw_dmac_core dell_smo8800 snd_soc_sst_acpi 8250_dw dell_rbtn i2c_designware_platform i2c_designware_core spi_pxa2xx_platform mac_hid cdc_mbim qcserial cdc_wdm cdc_ncm usb_wwan usbnet mii usbserial parport_pc ppdev lp parport autofs4 uas usb_storage i915 i2c_algo_bit psmouse drm_kms_helper e1000e drm ahci libahci ptp sdhci_pci pps_core wmi sdhci_acpi video sdhci i2c_hid hid [ 6.549269] CPU: 2 PID: 1048 Comm: Xorg Tainted: G W OE 4.2.0-16-generic #19-Ubuntu [ 6.549270] Hardware name: Dell Inc. Latitude E7440/07F3F4, BIOS A09 05/01/2014 [ 6.549272] 0000000000000000 000000002ecf7f35 ffff880409e337c8 ffffffff817e8c09 [ 6.549275] 0000000000000000 ffff880409e33820 ffff880409e33808 ffffffff8107b3c6 [ 6.549278] ffff880409e33848 ffff880409e338b0 ffff8804072d6800 0000000000000001 [ 6.549280] Call Trace: [ 6.549286] [<ffffffff817e8c09>] dump_stack+0x45/0x57 [ 6.549291] [<ffffffff8107b3c6>] warn_slowpath_common+0x86/0xc0 [ 6.549293] [<ffffffff8107b455>] warn_slowpath_fmt+0x55/0x70 [ 6.549308] [<ffffffffc0225bc1>] ? intel_pipe_config_compare+0xb31/0xc60 [i915] [ 6.549320] [<ffffffffc0225fb5>] check_crtc_state+0x2c5/0x440 [i915] [ 6.549336] [<ffffffffc0239d6d>] intel_modeset_check_state+0x21d/0x6d0 [i915] [ 6.549350] [<ffffffffc023af27>] intel_crtc_set_config+0x4c7/0x580 [i915] [ 6.549364] [<ffffffffc00b6ee5>] ? drm_mode_create+0x25/0x60 [drm] [ 6.549374] [<ffffffffc00b04c6>] drm_mode_set_config_internal+0x66/0x100 [drm] [ 6.549384] [<ffffffffc00b4b29>] drm_mode_setcrtc+0x3e9/0x500 [drm] [ 6.549392] [<ffffffffc00a5495>] drm_ioctl+0x125/0x610 [drm] [ 6.549400] [<ffffffffc00b4740>] ? drm_mode_setplane+0x1b0/0x1b0 [drm] [ 6.549404] [<ffffffff812108a5>] do_vfs_ioctl+0x295/0x480 [ 6.549407] [<ffffffff81087f61>] ? __set_task_blocked+0x41/0xa0 [ 6.549410] [<ffffffff81210b09>] SyS_ioctl+0x79/0x90 [ 6.549413] [<ffffffff8108ab8e>] ? SyS_rt_sigprocmask+0x8e/0xc0 [ 6.549416] [<ffffffff817ef9f2>] entry_SYSCALL_64_fastpath+0x16/0x75 [ 6.549418] ---[ end trace 5a9f3f63db8e3888 ]--- ProblemType: Bug DistroRelease: Ubuntu 15.10 Package: linux-image-4.2.0-16-generic 4.2.0-16.19 ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3 Uname: Linux 4.2.0-16-generic x86_64 ApportVersion: 2.19.1-0ubuntu4 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: patrikj 1724 F.... pulseaudio /dev/snd/controlC1: patrikj 1724 F.... pulseaudio CurrentDesktop: Unity Date: Thu Nov 5 23:43:28 2015 HibernationDevice: RESUME=UUID=2c948eae-cab3-47b5-a293-ceefec2af360 InstallationDate: Installed on 2014-10-14 (387 days ago) InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2) MachineType: Dell Inc. Latitude E7440 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-16-generic root=UUID=a8c1bdf4-4a10-4923-be0e-03d7148a6b88 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.2.0-16-generic N/A linux-backports-modules-4.2.0-16-generic N/A linux-firmware 1.149 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 05/01/2014 dmi.bios.vendor: Dell Inc. dmi.bios.version: A09 dmi.board.name: 07F3F4 dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA09:bd05/01/2014:svnDellInc.:pnLatitudeE7440:pvr01:rvnDellInc.:rn07F3F4:rvrA00:cvnDellInc.:ct9:cvr: dmi.product.name: Latitude E7440 dmi.product.version: 01 dmi.sys.vendor: Dell Inc. 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