What I see is similar, but not identical to Gábor's description: Feb 24 14:51:10 tena kernel: [ 761.070735] CPU: 0 PID: 1132 Comm: Xorg Tainted: G W 4.4. 0-64-generic #85~14.04.1-Ubuntu Feb 24 14:51:10 tena kernel: [ 761.070736] Hardware name: Dell Inc. Latitude E5570/0R3VX4, BIOS 1.7.3 06/15/2016 Feb 24 14:51:10 tena kernel: [ 761.070737] 0000000000000000 ffff880097f47928 ffffffff813dc80c ffff88 0097f47970 Feb 24 14:51:10 tena kernel: [ 761.070738] ffffffffc069e700 ffff880097f47960 ffffffff8107e9d6 ffff88 0097156000 Feb 24 14:51:10 tena kernel: [ 761.070739] ffff880097308000 0000000000000004 ffff880097cf8b78 ffff88 0097f479ec Feb 24 14:51:10 tena kernel: [ 761.070741] Call Trace: Feb 24 14:51:10 tena kernel: [ 761.070742] [<ffffffff813dc80c>] dump_stack+0x63/0x87
Notice that in my case, it says "Xorg Tainted", where Gábor sees "Xorg Not Tainted". Not sure if it's the same bug, but it sounds like it might be. I'm on Ubuntu 14.04 ("4.4.0-64-generic #85~14.04.1-Ubuntu SMP Mon Feb 20 12:10:54 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux"), on a Latitude E5570. Fresh install a few days ago. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to libdrm in Ubuntu. https://bugs.launchpad.net/bugs/1661763 Title: screen turns off during standby, doesn't wake up on resume Status in libdrm package in Ubuntu: Confirmed Bug description: screen turns off during standby, doesn't wake up on resume had to reboot to recover Feb 2 22:51:59 ubuntu8 kernel: [318555.548546] ------------[ cut here ]------------ Feb 2 22:51:59 ubuntu8 kernel: [318555.548650] WARNING: CPU: 3 PID: 14496 at /build/linux-RZGRu0/linux-4.8.0/drivers/gpu/drm/i915/intel_display.c:14328 skl_max_scale.part.120+0x75/0x80 [i915] Feb 2 22:51:59 ubuntu8 kernel: [318555.548654] WARN_ON_ONCE(!crtc_clock || cdclk < crtc_clock) Feb 2 22:51:59 ubuntu8 kernel: [318555.548657] Modules linked in: msr ccm rfcomm bnep hid_multitouch i2c_designware_platform i2c_designware_core hp_wmi sparse_keymap nls_iso8859_1 arc4 snd_soc_skl snd_soc_skl_ipc snd_soc_sst_ipc snd_hda_codec_hdmi intel_rapl x86_pkg_temp_thermal coretemp snd_hda_codec_conexant snd_hda_codec_generic snd_soc_sst_dsp snd_hda_ext_core kvm_intel snd_soc_sst_match kvm iwlmvm snd_soc_core irqbypass crct10dif_pclmul snd_compress ac97_bus snd_pcm_dmaengine snd_hda_intel snd_hda_codec crc32_pclmul mac80211 snd_hda_core ghash_clmulni_intel snd_hwdep aesni_intel snd_pcm aes_x86_64 lrw snd_seq_midi glue_helper snd_seq_midi_event ablk_helper snd_rawmidi cryptd iwlwifi snd_seq snd_seq_device snd_timer input_leds cfg80211 joydev serio_raw rtsx_pci_ms memstick snd soundcore uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 shpchp videobuf2_core videodev media mei_me idma64 mei virt_dma btusb btrtl intel_lpss_pci intel_pch_thermal processor_thermal_device intel_soc_dts_iosf ucsi int3403_thermal hci_uart btbcm btqca btintel bluetooth intel_lpss_acpi intel_lpss hp_accel lis3lv02d input_polldev int3402_thermal int3406_thermal int340x_thermal_zone tpm_crb mac_hid int3400_thermal acpi_thermal_rel acpi_pad dptf_power hp_wireless parport_pc ppdev lp parport ip_tables x_tables autofs4 btrfs xor raid6_pq rtsx_pci_sdmmc i915 i2c_algo_bit drm_kms_helper syscopyarea psmouse sysfillrect nvme sysimgblt fb_sys_fops nvme_core drm ahci rtsx_pci libahci i2c_hid wmi hid video fjes Feb 2 22:51:59 ubuntu8 kernel: [318555.548904] CPU: 3 PID: 14496 Comm: Xorg Not tainted 4.8.0-34-generic #36-Ubuntu Feb 2 22:51:59 ubuntu8 kernel: [318555.548907] Hardware name: HP HP ENVY Notebook/81D1, BIOS F.28 10/05/2016 Feb 2 22:51:59 ubuntu8 kernel: [318555.548911] 0000000000000286 000000008055b5e8 ffff975531437930 ffffffff8e430a22 Feb 2 22:51:59 ubuntu8 kernel: [318555.548924] ffff975531437980 0000000000000000 ffff975531437970 ffffffff8e08319b Feb 2 22:51:59 ubuntu8 kernel: [318555.548930] 000037f88e1a9a80 ffff975412ad86c0 ffff97555c5b3c00 ffff9755660a6000 Feb 2 22:51:59 ubuntu8 kernel: [318555.548936] Call Trace: Feb 2 22:51:59 ubuntu8 kernel: [318555.548948] [<ffffffff8e430a22>] dump_stack+0x63/0x81 Feb 2 22:51:59 ubuntu8 kernel: [318555.548957] [<ffffffff8e08319b>] __warn+0xcb/0xf0 Feb 2 22:51:59 ubuntu8 kernel: [318555.548965] [<ffffffff8e08321f>] warn_slowpath_fmt+0x5f/0x80 Feb 2 22:51:59 ubuntu8 kernel: [318555.548998] [<ffffffffc035e934>] ? drm_atomic_helper_normalize_zpos+0x264/0x300 [drm_kms_helper] Feb 2 22:51:59 ubuntu8 kernel: [318555.549068] [<ffffffffc0409005>] skl_max_scale.part.120+0x75/0x80 [i915] Feb 2 22:51:59 ubuntu8 kernel: [318555.549131] [<ffffffffc04090d6>] intel_check_primary_plane+0xc6/0xe0 [i915] Feb 2 22:51:59 ubuntu8 kernel: [318555.549151] [<ffffffffc035e934>] ? drm_atomic_helper_normalize_zpos+0x264/0x300 [drm_kms_helper] Feb 2 22:51:59 ubuntu8 kernel: [318555.549211] [<ffffffffc03fa402>] intel_plane_atomic_check+0x132/0x1f0 [i915] Feb 2 22:51:59 ubuntu8 kernel: [318555.549230] [<ffffffffc035b7a4>] drm_atomic_helper_check_planes+0x84/0x200 [drm_kms_helper] Feb 2 22:51:59 ubuntu8 kernel: [318555.549292] [<ffffffffc0415095>] intel_atomic_check+0x155/0x760 [i915] Feb 2 22:51:59 ubuntu8 kernel: [318555.549339] [<ffffffffc029b757>] drm_atomic_check_only+0x187/0x610 [drm] Feb 2 22:51:59 ubuntu8 kernel: [318555.549377] [<ffffffffc029bbf7>] drm_atomic_commit+0x17/0x60 [drm] Feb 2 22:51:59 ubuntu8 kernel: [318555.549397] [<ffffffffc035d9bc>] drm_atomic_helper_disable_plane+0xac/0xf0 [drm_kms_helper] Feb 2 22:51:59 ubuntu8 kernel: [318555.549430] [<ffffffffc028a43b>] __setplane_internal+0x17b/0x270 [drm] Feb 2 22:51:59 ubuntu8 kernel: [318555.549436] [<ffffffff8e82978f>] ? unix_stream_read_generic+0x24f/0x920 Feb 2 22:51:59 ubuntu8 kernel: [318555.549467] [<ffffffffc028a669>] drm_mode_cursor_universal+0x139/0x240 [drm] Feb 2 22:51:59 ubuntu8 kernel: [318555.549498] [<ffffffffc028a7ee>] drm_mode_cursor_common+0x7e/0x180 [drm] Feb 2 22:51:59 ubuntu8 kernel: [318555.549530] [<ffffffffc028ef10>] drm_mode_cursor_ioctl+0x50/0x70 [drm] Feb 2 22:51:59 ubuntu8 kernel: [318555.549555] [<ffffffffc0280da0>] drm_ioctl+0x200/0x4f0 [drm] Feb 2 22:51:59 ubuntu8 kernel: [318555.549585] [<ffffffffc028eec0>] ? drm_mode_setcrtc+0x580/0x580 [drm] Feb 2 22:51:59 ubuntu8 kernel: [318555.549592] [<ffffffff8e43a009>] ? timerqueue_add+0x59/0xb0 Feb 2 22:51:59 ubuntu8 kernel: [318555.549599] [<ffffffff8e0f600d>] ? enqueue_hrtimer+0x3d/0x80 Feb 2 22:51:59 ubuntu8 kernel: [318555.549606] [<ffffffff8e0f6970>] ? hrtimer_start_range_ns+0x1c0/0x3d0 Feb 2 22:51:59 ubuntu8 kernel: [318555.549612] [<ffffffff8e248663>] do_vfs_ioctl+0xa3/0x610 Feb 2 22:51:59 ubuntu8 kernel: [318555.549617] [<ffffffff8e7631a1>] ? __sys_recvmsg+0x51/0x90 Feb 2 22:51:59 ubuntu8 kernel: [318555.549622] [<ffffffff8e248c49>] SyS_ioctl+0x79/0x90 Feb 2 22:51:59 ubuntu8 kernel: [318555.549629] [<ffffffff8e89c2b6>] entry_SYSCALL_64_fastpath+0x1e/0xa8 Feb 2 22:51:59 ubuntu8 kernel: [318555.549634] ---[ end trace b4075b1cc3ebbfa8 ]--- ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: libdrm-intel1 2.4.70-1 ProcVersionSignature: Ubuntu 4.8.0-34.36-generic 4.8.11 Uname: Linux 4.8.0-34-generic x86_64 .tmp.unity_support_test.0: ApportVersion: 2.20.3-0ubuntu8.2 Architecture: amd64 BootLog: CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: None Date: Fri Feb 3 17:33:02 2017 DistUpgraded: Fresh install DistroCodename: yakkety DistroVariant: ubuntu GraphicsCard: Intel Corporation Device [8086:5916] (rev 02) (prog-if 00 [VGA controller]) Subsystem: Hewlett-Packard Company Device [103c:81d1] InstallationDate: Installed on 2016-12-23 (42 days ago) InstallationMedia: Ubuntu 16.10 "Yakkety Yak" - Release amd64 (20161012.2) Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 004: ID 8087:0a2a Intel Corp. Bus 001 Device 003: ID 05c8:0800 Cheng Uei Precision Industry Co., Ltd (Foxlink) Bus 001 Device 002: ID 05c8:0801 Cheng Uei Precision Industry Co., Ltd (Foxlink) Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: HP HP ENVY Notebook ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.8.0-34-generic.efi.signed root=UUID=9af558d6-a811-420d-974e-25da25a67601 ro quiet splash vt.handoff=7 SourcePackage: libdrm UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 10/05/2016 dmi.bios.vendor: Insyde dmi.bios.version: F.28 dmi.board.asset.tag: Type2 - Board Asset Tag dmi.board.name: 81D1 dmi.board.vendor: HP dmi.board.version: KBC Version 87.21 dmi.chassis.type: 10 dmi.chassis.vendor: HP dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnInsyde:bvrF.28:bd10/05/2016:svnHP:pnHPENVYNotebook:pvrType1ProductConfigId:rvnHP:rn81D1:rvrKBCVersion87.21:cvnHP:ct10:cvrChassisVersion: dmi.product.name: HP ENVY Notebook dmi.product.version: Type1ProductConfigId dmi.sys.vendor: HP version.compiz: compiz 1:0.9.13.0+16.10.20160818.2-0ubuntu2 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.70-1 version.libgl1-mesa-dri: libgl1-mesa-dri 12.0.3-1ubuntu2 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 12.0.3-1ubuntu2 version.xserver-xorg-core: xserver-xorg-core 2:1.18.4-1ubuntu6.1 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.2-1ubuntu1 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.7.1-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20160706-1ubuntu1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.12-2 xserver.bootTime: Fri Feb 3 17:24:39 2017 xserver.configfile: default xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.version: 2:1.18.4-1ubuntu6.1 xserver.video_driver: modeset To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libdrm/+bug/1661763/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp