Confirmed on an Intel NUC D34010WYK running fully updated 15.10. 4.2.0-27-generic
-- 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/1492764 Title: [drm:intel_pipe_config_compare [i915]] *ERROR* mismatch in ips_enabled (expected 1, found 0) Status in Linux: Fix Released Status in linux package in Ubuntu: Incomplete Bug description: System: Kubuntu 15.10 Since kernel version 4.2 I have a few of this errors: Sep 06 16:16:35 benediktZ50-70 kernel: [drm:intel_pipe_config_compare [i915]] *ERROR* mismatch in ips_enabled (expected 1, found 0) Sep 06 16:16:35 benediktZ50-70 kernel: ------------[ cut here ]------------ Sep 06 16:16:35 benediktZ50-70 kernel: WARNING: CPU: 0 PID: 187 at /build/linux-4dBub_/linux-4.2.0/drivers/gpu/drm/i915/intel_display.c:12324 check_crtc_state+0x2c5/0x440 [i915]() Sep 06 16:16:35 benediktZ50-70 kernel: pipe state doesn't match! Sep 06 16:16:35 benediktZ50-70 kernel: Modules linked in: rtsx_usb_sdmmc rtsx_usb i915 i2c_algo_bit drm_kms_helper psmouse ahci drm libahci r8169 mii sdhci_acpi video sdhci i2c_hid hid Sep 06 16:16:35 benediktZ50-70 kernel: CPU: 0 PID: 187 Comm: plymouthd Tainted: G W 4.2.0-7-generic #7-Ubuntu Sep 06 16:16:35 benediktZ50-70 kernel: Hardware name: LENOVO 20354/Lancer 5A5, BIOS 9BCN91WW 07/21/2015 Sep 06 16:16:35 benediktZ50-70 kernel: ffffffffc023f1e8 ffff8802413277e8 ffffffff817b0465 0000000000000000 Sep 06 16:16:35 benediktZ50-70 kernel: ffff880241327838 ffff880241327828 ffffffff81076536 ffff880241327858 Sep 06 16:16:35 benediktZ50-70 kernel: ffff8802413278c0 ffff880241152000 0000000000000001 ffff880241152350 Sep 06 16:16:35 benediktZ50-70 kernel: Call Trace: Sep 06 16:16:35 benediktZ50-70 kernel: [<ffffffff817b0465>] dump_stack+0x45/0x57 Sep 06 16:16:35 benediktZ50-70 kernel: [<ffffffff81076536>] warn_slowpath_common+0x86/0xc0 Sep 06 16:16:35 benediktZ50-70 kernel: [<ffffffff810765b6>] warn_slowpath_fmt+0x46/0x50 Sep 06 16:16:35 benediktZ50-70 kernel: [<ffffffffc01d3091>] ? intel_pipe_config_compare+0xb31/0xc60 [i915] Sep 06 16:16:35 benediktZ50-70 kernel: [<ffffffffc01d3485>] check_crtc_state+0x2c5/0x440 [i915] Sep 06 16:16:35 benediktZ50-70 kernel: [<ffffffffc01e6f3e>] intel_modeset_check_state+0x20e/0x6b0 [i915] Sep 06 16:16:35 benediktZ50-70 kernel: [<ffffffffc01e80e7>] intel_crtc_set_config+0x4c7/0x580 [i915] Sep 06 16:16:35 benediktZ50-70 kernel: [<ffffffffc009f915>] ? drm_mode_create+0x25/0x60 [drm] Sep 06 16:16:35 benediktZ50-70 kernel: [<ffffffffc0099036>] drm_mode_set_config_internal+0x66/0x100 [drm] Sep 06 16:16:35 benediktZ50-70 kernel: [<ffffffffc009d5f8>] drm_mode_setcrtc+0x3a8/0x4c0 [drm] Sep 06 16:16:35 benediktZ50-70 kernel: [<ffffffffc008e365>] drm_ioctl+0x125/0x610 [drm] Sep 06 16:16:35 benediktZ50-70 kernel: [<ffffffffc009d250>] ? drm_mode_setplane+0x1b0/0x1b0 [drm] Sep 06 16:16:35 benediktZ50-70 kernel: [<ffffffff811fffd5>] do_vfs_ioctl+0x285/0x470 Sep 06 16:16:35 benediktZ50-70 kernel: [<ffffffff811ac159>] ? do_munmap+0x349/0x480 Sep 06 16:16:35 benediktZ50-70 kernel: [<ffffffff81200239>] SyS_ioctl+0x79/0x90 Sep 06 16:16:35 benediktZ50-70 kernel: [<ffffffff817b6cf2>] entry_SYSCALL_64_fastpath+0x16/0x75 Sep 06 16:16:35 benediktZ50-70 kernel: ---[ end trace 724377a3c01e4270 ]--- I will check next week if these errors have any impact on my system. This is a Nvidia Optimus System with the Intel graphic card activated by default. ProblemType: Bug DistroRelease: Ubuntu 15.10 Package: linux-image-4.2.0-7-generic 4.2.0-7.7 ProcVersionSignature: Ubuntu 4.2.0-7.7-generic 4.2.0 Uname: Linux 4.2.0-7-generic x86_64 ApportVersion: 2.18-0ubuntu9 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: benedikt 1550 F.... pulseaudio /dev/snd/controlC1: benedikt 1550 F.... pulseaudio CurrentDesktop: KDE Date: Sun Sep 6 16:22:48 2015 HibernationDevice: UUID=3383b02e-b89c-462c-903a-cb936e81b2bf InstallationDate: Installed on 2014-12-21 (259 days ago) InstallationMedia: Kubuntu 15.04 "Vivid Vervet" - Alpha amd64 (20141218) MachineType: LENOVO 20354 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-7-generic root=UUID=b549945a-67ac-4d14-849c-b54e561d47cc ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.2.0-7-generic N/A linux-backports-modules-4.2.0-7-generic N/A linux-firmware 1.147 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/21/2015 dmi.bios.vendor: LENOVO dmi.bios.version: 9BCN91WW dmi.board.asset.tag: No Asset Tag dmi.board.name: Lancer 5A5 dmi.board.vendor: LENOVO dmi.board.version: 31900058WIN dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Lenovo Z50-70 dmi.modalias: dmi:bvnLENOVO:bvr9BCN91WW:bd07/21/2015:svnLENOVO:pn20354:pvrLenovoZ50-70:rvnLENOVO:rnLancer5A5:rvr31900058WIN:cvnLENOVO:ct10:cvrLenovoZ50-70: dmi.product.name: 20354 dmi.product.version: Lenovo Z50-70 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1492764/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp