** Tags added: kernel-fixed-upstream ** Tags added: kernel-bug-exists-upstream-4.4-rc6
** Tags removed: kernel-bug-exists-upstream-4.4-rc6 ** Tags added: kernel-fixed-upstream-4.4-rc6 ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- 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/1525587 Title: dmesg output contains error: "*ERROR* mismatch in ips_enabled (expected 1, found 0)" Status in linux package in Ubuntu: Confirmed Bug description: The following error does appear in my dmesg output after every system start. I do not know if it has any consequences. [ +0,145801] [drm:intel_pipe_config_compare [i915]] *ERROR* mismatch in ips_enabled (expected 1, found 0) [ +0,000003] ------------[ cut here ]------------ [ +0,000016] WARNING: CPU: 0 PID: 980 at /build/linux-1vdNXv/linux-4.2.0/drivers/gpu/drm/i915/intel_display.c:12328 check_crtc_state+0x2c5/0x440 [i915]() [ +0,000001] pipe state doesn't match! [ +0,000001] Modules linked in: rfcomm bnep arc4 hp_wmi joydev sparse_keymap intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm snd_hda_co [ +0,000041] drm_kms_helper e1000e ahci drm libahci ptp pps_core wmi video [ +0,000007] CPU: 0 PID: 980 Comm: Xorg Tainted: G W 4.2.0-21-generic #25-Ubuntu [ +0,000002] Hardware name: Hewlett-Packard HP EliteBook 850 G1/198F, BIOS L71 Ver. 01.30 12/09/2014 [ +0,000001] 0000000000000000 00000000af849558 ffff8802319977c8 ffffffff817e9449 [ +0,000003] 0000000000000000 ffff880231997820 ffff880231997808 ffffffff8107b3d6 [ +0,000002] ffff880231997848 ffff8802319978b0 ffff880230e64800 0000000000000001 [ +0,145801] [drm:intel_pipe_config_compare [i915]] *ERROR* mismatch in ips_enabled (expected 1, found 0) [ +0,000003] ------------[ cut here ]------------ [ +0,000016] WARNING: CPU: 0 PID: 980 at /build/linux-1vdNXv/linux-4.2.0/drivers/gpu/drm/i915/intel_display.c:12328 check_crtc_state+0x2c5/0x440 [i915]() [ +0,000001] pipe state doesn't match! [ +0,000001] Modules linked in: rfcomm bnep arc4 hp_wmi joydev sparse_keymap intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm snd_hda_co [ +0,000041] drm_kms_helper e1000e ahci drm libahci ptp pps_core wmi video [ +0,000007] CPU: 0 PID: 980 Comm: Xorg Tainted: G W 4.2.0-21-generic #25-Ubuntu [ +0,000002] Hardware name: Hewlett-Packard HP EliteBook 850 G1/198F, BIOS L71 Ver. 01.30 12/09/2014 [ +0,000001] 0000000000000000 00000000af849558 ffff8802319977c8 ffffffff817e9449 [ +0,000003] 0000000000000000 ffff880231997820 ffff880231997808 ffffffff8107b3d6 [ +0,000002] ffff880231997848 ffff8802319978b0 ffff880230e64800 0000000000000001 [ +0,000002] Call Trace: [ +0,000006] [<ffffffff817e9449>] dump_stack+0x45/0x57 [ +0,000005] [<ffffffff8107b3d6>] warn_slowpath_common+0x86/0xc0 [ +0,000003] [<ffffffff8107b465>] warn_slowpath_fmt+0x55/0x70 [ +0,000013] [<ffffffffc024d941>] ? intel_pipe_config_compare+0xb31/0xc60 [i915] [ +0,000011] [<ffffffffc024dd35>] check_crtc_state+0x2c5/0x440 [i915] [ +0,000016] [<ffffffffc0261b5d>] intel_modeset_check_state+0x21d/0x6d0 [i915] [ +0,000013] [<ffffffffc0262d17>] intel_crtc_set_config+0x4c7/0x580 [i915] [ +0,000014] [<ffffffffc0051ef5>] ? drm_mode_create+0x25/0x60 [drm] [ +0,000009] [<ffffffffc004b4a6>] drm_mode_set_config_internal+0x66/0x100 [drm] [ +0,000010] [<ffffffffc004fb39>] drm_mode_setcrtc+0x3e9/0x500 [drm] [ +0,000006] [<ffffffffc0040495>] drm_ioctl+0x125/0x610 [drm] [ +0,000008] [<ffffffffc004f750>] ? drm_mode_setplane+0x1b0/0x1b0 [drm] [ +0,000003] [<ffffffff81210a25>] do_vfs_ioctl+0x295/0x480 [ +0,000003] [<ffffffff81087f71>] ? __set_task_blocked+0x41/0xa0 [ +0,000002] [<ffffffff81210c89>] SyS_ioctl+0x79/0x90 [ +0,000003] [<ffffffff8108ab9e>] ? SyS_rt_sigprocmask+0x8e/0xc0 [ +0,000003] [<ffffffff817f0232>] entry_SYSCALL_64_fastpath+0x16/0x75 [ +0,000002] ---[ end trace cf5c10366430704f ]--- --- ApportVersion: 2.19.1-0ubuntu5 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: bs-ldi 2033 F.... pulseaudio /dev/snd/controlC0: bs-ldi 2033 F.... pulseaudio CurrentDesktop: Unity DistroRelease: Ubuntu 15.10 HibernationDevice: RESUME=UUID=6db9b5a5-d21c-4127-a751-53b667523027 InstallationDate: Installed on 2015-05-28 (201 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) MachineType: Hewlett-Packard HP EliteBook 850 G1 Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-21-generic root=UUID=3aa3d587-358c-4744-a494-2ae77f32588c ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 4.2.0-21.25-generic 4.2.6 RelatedPackageVersions: linux-restricted-modules-4.2.0-21-generic N/A linux-backports-modules-4.2.0-21-generic N/A linux-firmware 1.149.3 Tags: wily UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' Uname: Linux 4.2.0-21-generic x86_64 UpgradeStatus: Upgraded to wily on 2015-10-23 (54 days ago) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo vboxusers wireshark _MarkForUpload: True dmi.bios.date: 09/01/2015 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: L71 Ver. 01.33 dmi.board.name: 198F dmi.board.vendor: Hewlett-Packard dmi.board.version: KBC Version 15.57 dmi.chassis.asset.tag: CNU425C9T6 dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.modalias: dmi:bvnHewlett-Packard:bvrL71Ver.01.33:bd09/01/2015:svnHewlett-Packard:pnHPEliteBook850G1:pvrA3009DD10303:rvnHewlett-Packard:rn198F:rvrKBCVersion15.57:cvnHewlett-Packard:ct10:cvr: dmi.product.name: HP EliteBook 850 G1 dmi.product.version: A3009DD10303 dmi.sys.vendor: Hewlett-Packard To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1525587/+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