Here's (I think) the relevant section of the Kernel Log: May 3 09:07:57 andor-Lemur kernel: [ 2.829933] ------------[ cut here ]------------ May 3 09:07:57 andor-Lemur kernel: [ 2.829952] WARNING: CPU: 3 PID: 24 at /build/linux-yplzxd/linux-4.4.0/ubuntu/i915/intel_pm.c:3572 skl_update_other_pipe_wm+0x16c/0x180 [i915_bpo]() May 3 09:07:57 andor-Lemur kernel: [ 2.829954] WARN_ON(!wm_changed) May 3 09:07:57 andor-Lemur kernel: [ 2.829954] Modules linked in: autofs4 mmc_block rtsx_pci_sdmmc i915_bpo intel_ips i2c_algo_bit drm_kms_helper syscopyarea sysfillrect psmouse sysimgblt fb_sys_fops drm r8169 ahci rtsx_pci mii libahci wmi video pinctrl_sunrisepoint i2c_hid pinctrl_intel hid fjes May 3 09:07:57 andor-Lemur kernel: [ 2.829981] CPU: 3 PID: 24 Comm: kworker/3:0 Not tainted 4.4.0-22-generic #38-Ubuntu May 3 09:07:57 andor-Lemur kernel: [ 2.829982] Hardware name: System76, Inc. Lemur /Lemur , BIOS 1.05.06RS76 11/29/2015 May 3 09:07:57 andor-Lemur kernel: [ 2.829987] Workqueue: events output_poll_execute [drm_kms_helper] May 3 09:07:57 andor-Lemur kernel: [ 2.829988] 0000000000000286 00000000ab9642dc ffff880460d73950 ffffffff813e9c73 May 3 09:07:57 andor-Lemur kernel: [ 2.829990] ffff880460d73998 ffffffffc028ac70 ffff880460d73988 ffffffff81080fb2 May 3 09:07:57 andor-Lemur kernel: [ 2.829991] ffff880460ed6000 ffff88045aa99d9c ffff880460ed5000 ffff88045ae7fb78 May 3 09:07:57 andor-Lemur kernel: [ 2.829992] Call Trace: May 3 09:07:57 andor-Lemur kernel: [ 2.829996] [<ffffffff813e9c73>] dump_stack+0x63/0x90 May 3 09:07:57 andor-Lemur kernel: [ 2.829999] [<ffffffff81080fb2>] warn_slowpath_common+0x82/0xc0 May 3 09:07:57 andor-Lemur kernel: [ 2.830000] [<ffffffff8108104c>] warn_slowpath_fmt+0x5c/0x80 May 3 09:07:57 andor-Lemur kernel: [ 2.830010] [<ffffffffc01bc5cc>] skl_update_other_pipe_wm+0x16c/0x180 [i915_bpo] May 3 09:07:57 andor-Lemur kernel: [ 2.830019] [<ffffffffc01bc766>] skl_update_wm+0x186/0x5f0 [i915_bpo] May 3 09:07:57 andor-Lemur kernel: [ 2.830033] [<ffffffffc024836f>] ? intel_ddi_enable_transcoder_func+0x17f/0x260 [i915_bpo] May 3 09:07:57 andor-Lemur kernel: [ 2.830046] [<ffffffffc01c048e>] intel_update_watermarks+0x1e/0x30 [i915_bpo] May 3 09:07:57 andor-Lemur kernel: [ 2.830065] [<ffffffffc022c401>] haswell_crtc_enable+0x321/0x8c0 [i915_bpo] May 3 09:07:57 andor-Lemur kernel: [ 2.830084] [<ffffffffc0218a8e>] ? intel_finish_crtc_commit+0xe/0x10 [i915_bpo] May 3 09:07:57 andor-Lemur kernel: [ 2.830090] [<ffffffffc0172314>] ? drm_atomic_helper_commit_planes_on_crtc+0x154/0x270 [drm_kms_helper] May 3 09:07:57 andor-Lemur kernel: [ 2.830109] [<ffffffffc0228dad>] intel_atomic_commit+0x5dd/0xdb0 [i915_bpo] May 3 09:07:57 andor-Lemur kernel: [ 2.830126] [<ffffffffc00cd80e>] ? drm_atomic_check_only+0x18e/0x590 [drm] May 3 09:07:57 andor-Lemur kernel: [ 2.830138] [<ffffffffc00cdc47>] drm_atomic_commit+0x37/0x60 [drm] May 3 09:07:57 andor-Lemur kernel: [ 2.830144] [<ffffffffc01735df>] restore_fbdev_mode+0x22f/0x260 [drm_kms_helper] May 3 09:07:57 andor-Lemur kernel: [ 2.830156] [<ffffffffc00cc46a>] ? drm_modeset_lock_all_ctx+0x9a/0xb0 [drm] May 3 09:07:57 andor-Lemur kernel: [ 2.830161] [<ffffffffc01757c3>] drm_fb_helper_restore_fbdev_mode_unlocked+0x33/0x80 [drm_kms_helper] May 3 09:07:57 andor-Lemur kernel: [ 2.830164] [<ffffffffc017583d>] drm_fb_helper_set_par+0x2d/0x50 [drm_kms_helper] May 3 09:07:57 andor-Lemur kernel: [ 2.830167] [<ffffffffc0175742>] drm_fb_helper_hotplug_event+0xd2/0x120 [drm_kms_helper] May 3 09:07:57 andor-Lemur kernel: [ 2.830181] [<ffffffffc023f65e>] intel_fbdev_output_poll_changed+0x1e/0x30 [i915_bpo] May 3 09:07:57 andor-Lemur kernel: [ 2.830184] [<ffffffffc01686e7>] drm_kms_helper_hotplug_event+0x27/0x30 [drm_kms_helper] May 3 09:07:57 andor-Lemur kernel: [ 2.830187] [<ffffffffc01688e7>] output_poll_execute+0x197/0x1e0 [drm_kms_helper] May 3 09:07:57 andor-Lemur kernel: [ 2.830189] [<ffffffff8109a052>] process_one_work+0x162/0x480 May 3 09:07:57 andor-Lemur kernel: [ 2.830191] [<ffffffff8109a3bb>] worker_thread+0x4b/0x4c0 May 3 09:07:57 andor-Lemur kernel: [ 2.830193] [<ffffffff8109a370>] ? process_one_work+0x480/0x480 May 3 09:07:57 andor-Lemur kernel: [ 2.830194] [<ffffffff810a0588>] kthread+0xd8/0xf0 May 3 09:07:57 andor-Lemur kernel: [ 2.830196] [<ffffffff810a04b0>] ? kthread_create_on_node+0x1e0/0x1e0 May 3 09:07:57 andor-Lemur kernel: [ 2.830198] [<ffffffff8182568f>] ret_from_fork+0x3f/0x70 May 3 09:07:57 andor-Lemur kernel: [ 2.830200] [<ffffffff810a04b0>] ? kthread_create_on_node+0x1e0/0x1e0 May 3 09:07:57 andor-Lemur kernel: [ 2.830201] ---[ end trace 9fdb41f1dc06c78f ]---
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1574648 Title: Xorg freeze Status in xorg package in Ubuntu: New Bug description: Laptop is suspended with no external monitor. Upon connecting a VGA external monitor and opening lid (resume) laptop resumes and everything is okay. Attempting to connect bluetooth mouse causes immediate freeze of GUI and machine. Cannot drop down into low run mode (CTL-ALT-F6). Hard reset required. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: xorg 1:7.7+13ubuntu3 ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6 Uname: Linux 4.4.0-21-generic x86_64 .tmp.unity_support_test.0: ApportVersion: 2.20.1-0ubuntu2 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: compiz CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0' CompositorUnredirectFSW: true CurrentDesktop: Unity Date: Mon Apr 25 09:29:17 2016 DistUpgraded: 2016-04-21 09:24:43,092 DEBUG icon theme changed, re-reading DistroCodename: xenial DistroVariant: ubuntu ExtraDebuggingInterest: Yes GpuHangFrequency: Very infrequently GraphicsCard: Intel Corporation Sky Lake Integrated Graphics [8086:1916] (rev 07) (prog-if 00 [VGA controller]) Subsystem: CLEVO/KAPOK Computer Skylake Integrated Graphics [1558:2425] InstallationDate: Installed on 2015-12-14 (132 days ago) InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021) Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 003: ID 5986:068f Acer, Inc Bus 001 Device 006: ID 8087:0a2b Intel Corp. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: System76, Inc. Lemur ProcEnviron: LANGUAGE=en_US PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-21-generic root=UUID=578caace-46fb-497c-9b81-f99b65518a27 ro quiet splash vt.handoff=7 SourcePackage: xorg Symptom: display Title: Xorg freeze UpgradeStatus: Upgraded to xenial on 2016-04-21 (4 days ago) dmi.bios.date: 11/29/2015 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 1.05.06RS76 dmi.board.asset.tag: Tag 12345 dmi.board.name: Lemur dmi.board.vendor: System76, Inc. dmi.board.version: lemu6 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: System76, Inc. dmi.chassis.version: N/A dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1.05.06RS76:bd11/29/2015:svnSystem76,Inc.:pnLemur:pvrlemu6:rvnSystem76,Inc.:rnLemur:rvrlemu6:cvnSystem76,Inc.:ct10:cvrN/A: dmi.product.name: Lemur dmi.product.version: lemu6 dmi.sys.vendor: System76, Inc. version.compiz: compiz 1:0.9.12.2+16.04.20160415-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.67-1 version.libgl1-mesa-dri: libgl1-mesa-dri 11.2.0-1ubuntu2 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 11.2.0-1ubuntu2 version.xserver-xorg-core: xserver-xorg-core 2:1.18.3-1ubuntu2 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.1-1ubuntu2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.7.0-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20160325-1ubuntu1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.12-1build2 xserver.bootTime: Mon Apr 25 09:07:39 2016 xserver.configfile: default xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.outputs: product id 1094 vendor LGD xserver.version: 2:1.18.3-1ubuntu2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1574648/+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
