This happens to me running 64-bit Xubuntu 15.10 on a Dell Latitude E7440, when unlocking the screen after it's been sent to sleep. Light Locker Settings claims "Your screensaver settings are managed by Xfce Power Manager [Open]"; opening that utility, it's not clear what I need to switch off to hand control back to Light Locker without losing other power management options. This might all be beside the point.
In any case, I'm tailing /var/log/syslog all the time; when I return to my machine after the screen has been switched off for a time, after presenting my credentials to unlock the running session, I'm presented with an apport dialog stating that I'm attempting a task that requires root privileges (I'm paraphrasing, I'll update with the full details later.) /var/log/syslog contains the following stack trace: Dec 16 15:55:08 gd2pd12 org.gtk.vfs.Daemon[21443]: A connection to the bus can't be made Dec 16 15:55:08 gd2pd12 kernel: [597970.459037] [drm:intel_pipe_config_compare [i915]] *ERROR* mismatch in ips_enabled (expected 1, found 0) Dec 16 15:55:08 gd2pd12 kernel: [597970.459047] ------------[ cut here ]------------ Dec 16 15:55:08 gd2pd12 kernel: [597970.459091] WARNING: CPU: 3 PID: 5803 at /build/linux-26_gwp/linux-4.2.0/drivers/gpu/drm/i915/intel_display.c:12328 check_crtc_state+0x2c5/0x440 [i915]() Dec 16 15:55:08 gd2pd12 kernel: [597970.459095] pipe state doesn't match! Dec 16 15:55:08 gd2pd12 kernel: [597970.459098] Modules linked in: btrfs xor raid6_pq ufs qnx4 hfsplus hfs minix ntfs msdos jfs xfs libcrc32c xt_tcpudp xt_REDIRECT nf_nat_redirect xt_hl snd_usb_audio snd_usbmidi_lib binfmt_misc nls_utf8 isofs cdc_acm uas usb_storage nfnetlink_queue nfnetlink_log nfnetlink veth xt_addrtype br_netfilter bridge stp llc aufs rfcomm drbg ansi_cprng ctr ccm iptable_filter xt_conntrack ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack ip_tables x_tables pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) bnep rt2800usb rt2x00usb rt2800lib rt2x00lib crc_ccitt arc4 pn544_mei mei_phy pn544 hci nfc dell_wmi sparse_keymap dell_laptop dcdbas intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp dell_smm_hwmon coretemp uvcvideo videobuf2_vmalloc kvm_intel videobuf2_memops videobuf2_core v4l2_common videodev media kvm crct10dif_pclmul btusb btrtl crc32_pclmul btbcm btintel bluetooth iwl mvm aesni_intel mac80211 aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd iwlwifi input_leds serio_raw snd_hda_codec_realtek snd_hda_codec_hdmi snd_soc_rt5640 snd_soc_rl6231 snd_hda_codec_generic cfg80211 snd_hda_intel snd_hda_codec snd_soc_core lpc_ich snd_compress snd_hda_core ac97_bus snd_pcm_dmaengine shpchp snd_hwdep mei_me snd_seq_midi mei snd_pcm snd_seq_midi_event snd_rawmidi snd_seq snd_seq_device snd_timer snd snd_soc_sst_acpi soundcore dw_dmac 8250_fintek dw_dmac_core dell_smo8800 i2c_designware_platform 8250_dw i2c_designware_core spi_pxa2xx_platform dell_rbtn joydev mac_hid parport_pc ppdev lp parport autofs4 hid_generic usbhid i915 ahci libahci psmouse sdhci_pci i2c_algo_bit drm_kms_helper e1000e drm ptp pps_core wmi video sdhci_acpi sdhci i2c_hid hid Dec 16 15:55:08 gd2pd12 kernel: [597970.459338] CPU: 3 PID: 5803 Comm: Xorg Tainted: G W OE 4.2.0-19-generic #23-Ubuntu Dec 16 15:55:08 gd2pd12 kernel: [597970.459343] Hardware name: Dell Inc. Latitude E7440/06MFX3, BIOS A08 02/18/2014 Dec 16 15:55:08 gd2pd12 kernel: [597970.459348] 0000000000000000 000000006dd48220 ffff8804076077c8 ffffffff817e93f9 Dec 16 15:55:08 gd2pd12 kernel: [597970.459355] 0000000000000000 ffff880407607820 ffff880407607808 ffffffff8107b3d6 Dec 16 15:55:08 gd2pd12 kernel: [597970.459361] ffff880407607848 ffff8804076078b0 ffff880406df4000 0000000000000001 Dec 16 15:55:08 gd2pd12 kernel: [597970.459368] Call Trace: Dec 16 15:55:08 gd2pd12 kernel: [597970.459381] [<ffffffff817e93f9>] dump_stack+0x45/0x57 Dec 16 15:55:08 gd2pd12 kernel: [597970.459390] [<ffffffff8107b3d6>] warn_slowpath_common+0x86/0xc0 Dec 16 15:55:08 gd2pd12 kernel: [597970.459397] [<ffffffff8107b465>] warn_slowpath_fmt+0x55/0x70 Dec 16 15:55:08 gd2pd12 kernel: [597970.459440] [<ffffffffc022a941>] ? intel_pipe_config_compare+0xb31/0xc60 [i915] Dec 16 15:55:08 gd2pd12 kernel: [597970.459475] [<ffffffffc022ad35>] check_crtc_state+0x2c5/0x440 [i915] Dec 16 15:55:08 gd2pd12 kernel: [597970.459518] [<ffffffffc023eb5d>] intel_modeset_check_state+0x21d/0x6d0 [i915] Dec 16 15:55:08 gd2pd12 kernel: [597970.459545] [<ffffffffc023fd17>] intel_crtc_set_config+0x4c7/0x580 [i915] Dec 16 15:55:08 gd2pd12 kernel: [597970.459570] [<ffffffffc0092ef5>] ? drm_mode_create+0x25/0x60 [drm] Dec 16 15:55:08 gd2pd12 kernel: [597970.459589] [<ffffffffc008c4a6>] drm_mode_set_config_internal+0x66/0x100 [drm] Dec 16 15:55:08 gd2pd12 kernel: [597970.459610] [<ffffffffc0090b39>] drm_mode_setcrtc+0x3e9/0x500 [drm] Dec 16 15:55:08 gd2pd12 kernel: [597970.459623] [<ffffffffc0081495>] drm_ioctl+0x125/0x610 [drm] Dec 16 15:55:08 gd2pd12 kernel: [597970.459641] [<ffffffffc0090750>] ? drm_mode_setplane+0x1b0/0x1b0 [drm] Dec 16 15:55:08 gd2pd12 kernel: [597970.459647] [<ffffffff810ae619>] ? update_curr+0x79/0x150 Dec 16 15:55:08 gd2pd12 kernel: [597970.459653] [<ffffffff81210a25>] do_vfs_ioctl+0x295/0x480 Dec 16 15:55:08 gd2pd12 kernel: [597970.459658] [<ffffffff81210c89>] SyS_ioctl+0x79/0x90 Dec 16 15:55:08 gd2pd12 kernel: [597970.459665] [<ffffffff817f01f2>] entry_SYSCALL_64_fastpath+0x16/0x75 Dec 16 15:55:08 gd2pd12 kernel: [597970.459669] ---[ end trace 9d9e9b79204a234d ]--- Dec 16 15:55:08 gd2pd12 kernel: [597970.459821] [drm:intel_pipe_config_compare [i915]] *ERROR* mismatch in ips_enabled (expected 1, found 0) Dec 16 15:55:08 gd2pd12 kernel: [597970.459825] ------------[ cut here ]------------ Dec 16 15:55:08 gd2pd12 kernel: [597970.459851] WARNING: CPU: 3 PID: 5803 at /build/linux-26_gwp/linux-4.2.0/drivers/gpu/drm/i915/intel_display.c:12328 check_crtc_state+0x2c5/0x440 [i915]() Dec 16 15:55:08 gd2pd12 kernel: [597970.459853] pipe state doesn't match! Dec 16 15:55:08 gd2pd12 kernel: [597970.459855] Modules linked in: btrfs xor raid6_pq ufs qnx4 hfsplus hfs minix ntfs msdos jfs xfs libcrc32c xt_tcpudp xt_REDIRECT nf_nat_redirect xt_hl snd_usb_audio snd_usbmidi_lib binfmt_misc nls_utf8 isofs cdc_acm uas usb_storage nfnetlink_queue nfnetlink_log nfnetlink veth xt_addrtype br_netfilter bridge stp llc aufs rfcomm drbg ansi_cprng ctr ccm iptable_filter xt_conntrack ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack ip_tables x_tables pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) bnep rt2800usb rt2x00usb rt2800lib rt2x00lib crc_ccitt arc4 pn544_mei mei_phy pn544 hci nfc dell_wmi sparse_keymap dell_laptop dcdbas intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp dell_smm_hwmon coretemp uvcvideo videobuf2_vmalloc kvm_intel videobuf2_memops videobuf2_core v4l2_common videodev media kvm crct10dif_pclmul btusb btrtl crc32_pclmul btbcm btintel bluetooth iwl mvm aesni_intel mac80211 aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd iwlwifi input_leds serio_raw snd_hda_codec_realtek snd_hda_codec_hdmi snd_soc_rt5640 snd_soc_rl6231 snd_hda_codec_generic cfg80211 snd_hda_intel snd_hda_codec snd_soc_core lpc_ich snd_compress snd_hda_core ac97_bus snd_pcm_dmaengine shpchp snd_hwdep mei_me snd_seq_midi mei snd_pcm snd_seq_midi_event snd_rawmidi snd_seq snd_seq_device snd_timer snd snd_soc_sst_acpi soundcore dw_dmac 8250_fintek dw_dmac_core dell_smo8800 i2c_designware_platform 8250_dw i2c_designware_core spi_pxa2xx_platform dell_rbtn joydev mac_hid parport_pc ppdev lp parport autofs4 hid_generic usbhid i915 ahci libahci psmouse sdhci_pci i2c_algo_bit drm_kms_helper e1000e drm ptp pps_core wmi video sdhci_acpi sdhci i2c_hid hid Dec 16 15:55:08 gd2pd12 kernel: [597970.460002] CPU: 3 PID: 5803 Comm: Xorg Tainted: G W OE 4.2.0-19-generic #23-Ubuntu Dec 16 15:55:08 gd2pd12 kernel: [597970.460005] Hardware name: Dell Inc. Latitude E7440/06MFX3, BIOS A08 02/18/2014 Dec 16 15:55:08 gd2pd12 kernel: [597970.460007] 0000000000000000 000000006dd48220 ffff8804076077c8 ffffffff817e93f9 Dec 16 15:55:08 gd2pd12 kernel: [597970.460012] 0000000000000000 ffff880407607820 ffff880407607808 ffffffff8107b3d6 Dec 16 15:55:08 gd2pd12 kernel: [597970.460016] ffff880407607848 ffff8804076078b0 ffff880406df4000 0000000000000001 Dec 16 15:55:08 gd2pd12 kernel: [597970.460021] Call Trace: Dec 16 15:55:08 gd2pd12 kernel: [597970.460026] [<ffffffff817e93f9>] dump_stack+0x45/0x57 Dec 16 15:55:08 gd2pd12 kernel: [597970.460032] [<ffffffff8107b3d6>] warn_slowpath_common+0x86/0xc0 Dec 16 15:55:08 gd2pd12 kernel: [597970.460037] [<ffffffff8107b465>] warn_slowpath_fmt+0x55/0x70 Dec 16 15:55:08 gd2pd12 kernel: [597970.460062] [<ffffffffc022a941>] ? intel_pipe_config_compare+0xb31/0xc60 [i915] Dec 16 15:55:08 gd2pd12 kernel: [597970.460085] [<ffffffffc022ad35>] check_crtc_state+0x2c5/0x440 [i915] Dec 16 15:55:08 gd2pd12 kernel: [597970.460115] [<ffffffffc023eb5d>] intel_modeset_check_state+0x21d/0x6d0 [i915] Dec 16 15:55:08 gd2pd12 kernel: [597970.460141] [<ffffffffc023fd17>] intel_crtc_set_config+0x4c7/0x580 [i915] Dec 16 15:55:08 gd2pd12 kernel: [597970.460164] [<ffffffffc0092ef5>] ? drm_mode_create+0x25/0x60 [drm] Dec 16 15:55:08 gd2pd12 kernel: [597970.460183] [<ffffffffc008c4a6>] drm_mode_set_config_internal+0x66/0x100 [drm] Dec 16 15:55:08 gd2pd12 kernel: [597970.460203] [<ffffffffc0090b39>] drm_mode_setcrtc+0x3e9/0x500 [drm] Dec 16 15:55:08 gd2pd12 kernel: [597970.460216] [<ffffffffc0081495>] drm_ioctl+0x125/0x610 [drm] Dec 16 15:55:08 gd2pd12 kernel: [597970.460233] [<ffffffffc0090750>] ? drm_mode_setplane+0x1b0/0x1b0 [drm] Dec 16 15:55:08 gd2pd12 kernel: [597970.460238] [<ffffffff810ae619>] ? update_curr+0x79/0x150 Dec 16 15:55:08 gd2pd12 kernel: [597970.460244] [<ffffffff81210a25>] do_vfs_ioctl+0x295/0x480 Dec 16 15:55:08 gd2pd12 kernel: [597970.460249] [<ffffffff81210c89>] SyS_ioctl+0x79/0x90 Dec 16 15:55:08 gd2pd12 kernel: [597970.460255] [<ffffffff817f01f2>] entry_SYSCALL_64_fastpath+0x16/0x75 Dec 16 15:55:08 gd2pd12 kernel: [597970.460258] ---[ end trace 9d9e9b79204a234e ]--- Here's the output from lspci: lspci 00:00.0 Host bridge: Intel Corporation Haswell-ULT DRAM Controller (rev 0b) 00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 0b) 00:03.0 Audio device: Intel Corporation Haswell-ULT HD Audio Controller (rev 0b) 00:14.0 USB controller: Intel Corporation 8 Series USB xHCI HC (rev 04) 00:16.0 Communication controller: Intel Corporation 8 Series HECI #0 (rev 04) 00:16.3 Serial controller: Intel Corporation 8 Series HECI KT (rev 04) 00:19.0 Ethernet controller: Intel Corporation Ethernet Connection I218-LM (rev 04) 00:1b.0 Audio device: Intel Corporation 8 Series HD Audio Controller (rev 04) 00:1c.0 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 1 (rev e4) 00:1c.3 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 4 (rev e4) 00:1c.4 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 5 (rev e4) 00:1d.0 USB controller: Intel Corporation 8 Series USB EHCI #1 (rev 04) 00:1f.0 ISA bridge: Intel Corporation 8 Series LPC Controller (rev 04) 00:1f.2 RAID bus controller: Intel Corporation 82801 Mobile SATA Controller [RAID mode] (rev 04) 00:1f.3 SMBus: Intel Corporation 8 Series SMBus Controller (rev 04) 02:00.0 Network controller: Intel Corporation Wireless 7260 (rev 73) 03:00.0 SD Host controller: O2 Micro, Inc. SD/MMC Card Reader Controller (rev 01) I'm running the following kernel: $ uname -srvmpio Linux 4.2.0-19-generic #23-Ubuntu SMP Wed Nov 11 11:39:30 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux -- 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
