Though there's at least one other case where kernel failures happen just before Xorg failures:
Jul 24 01:09:40 u-XPS-13-9380 kernel: [ 1257.973610] [drm:intel_dp_start_link_train [i915]] *ERROR* failed to enable link training Jul 24 01:09:41 u-XPS-13-9380 kernel: [ 1258.196769] thunderbolt 0000:05:00.0: control channel starting... Jul 24 01:09:41 u-XPS-13-9380 kernel: [ 1258.196772] thunderbolt 0000:05:00.0: starting TX ring 0 Jul 24 01:09:41 u-XPS-13-9380 kernel: [ 1258.196780] thunderbolt 0000:05:00.0: enabling interrupt at register 0x38200 bit 0 (0x0 -> 0x1) Jul 24 01:09:41 u-XPS-13-9380 kernel: [ 1258.196782] thunderbolt 0000:05:00.0: starting RX ring 0 Jul 24 01:09:41 u-XPS-13-9380 kernel: [ 1258.196790] thunderbolt 0000:05:00.0: enabling interrupt at register 0x38200 bit 12 (0x1 -> 0x1001) Jul 24 01:09:41 u-XPS-13-9380 kernel: [ 1258.197236] usb usb3: root hub lost power or was reset Jul 24 01:09:41 u-XPS-13-9380 kernel: [ 1258.197238] usb usb4: root hub lost power or was reset Jul 24 01:09:41 u-XPS-13-9380 kernel: [ 1258.530275] [drm:intel_dp_check_link_status [i915]] *ERROR* Failed to get link status Jul 24 01:09:41 u-XPS-13-9380 /usr/lib/gdm3/gdm-x-session[2217]: (II) modeset(0): Allocate new frame buffer 5760x2160 stride Jul 24 01:09:43 u-XPS-13-9380 wpa_supplicant[838]: wlp2s0: CTRL-EVENT-SIGNAL-CHANGE above=1 signal=-49 noise=-97 txrate=6000 Jul 24 01:09:43 u-XPS-13-9380 kernel: [ 1261.069294] [drm:intel_dp_start_link_train [i915]] *ERROR* failed to enable link training Jul 24 01:09:44 u-XPS-13-9380 kernel: [ 1261.566585] [drm] Reducing the compressed framebuffer size. This may lead to less power savings than a non-reduced-size. Try to increase stolen memory size if available in BIOS. Jul 24 01:09:44 u-XPS-13-9380 org.gnome.Shell.desktop[2345]: Window manager warning: Configuring CRTC 64 with mode 186 (1920 x 1080 @ 60.000000) at position 3840, 0 and transform 0 failed Jul 24 01:09:44 u-XPS-13-9380 gnome-shell[2345]: g_array_unref: assertion 'array' failed Jul 24 01:09:44 u-XPS-13-9380 gnome-shell[2345]: message repeated 2 times: [ g_array_unref: assertion 'array' failed] Jul 24 01:09:44 u-XPS-13-9380 /usr/lib/gdm3/gdm-x-session[2217]: (WW) modeset(0): hotplug event: connector 68's link-state is BAD, tried resetting the current mode. You may be leftwith a black screen if this fails... ** Changed in: xorg-server (Ubuntu) Status: Incomplete => New ** Also affects: linux (Ubuntu) Importance: Undecided Status: New ** Changed in: linux (Ubuntu) Importance: Undecided => High -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1837683 Title: Screen stops updating after about 8 hours - (EE) modeset(0): present flip failed Status in linux package in Ubuntu: New Status in xorg-server package in Ubuntu: New Bug description: environment: - XPS-13-938 - connect 5G ac wifi - disabled suspend in power setting - disabled blank screen in power setting steps: - play 4k video by chrome on youtube[1] overnight symptom: - after about 8 hours, the screen is black and keyboard and mouse can not wake up screen. - the audio of 4K video is still playing, I can hear that when screen is black. - magic key still work, so I can reboot system by magic key. - a repeat error message in syslog: " Jul 24 01:25:49 u-XPS-13-9380 /usr/lib/gdm3/gdm-x-session[2217]: (WW) modeset(0): Page flip failed: Invalid argument Jul 24 01:25:49 u-XPS-13-9380 /usr/lib/gdm3/gdm-x-session[2217]: (EE) modeset(0): present flip failed " [1] https://www.youtube.com/watch?v=pkKBXH2qc_I&t=11701s ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: xorg 1:7.7+19ubuntu7.1 ProcVersionSignature: Ubuntu 4.15.0-1047.52-oem 4.15.18 Uname: Linux 4.15.0-1047-oem x86_64 ApportVersion: 2.20.9-0ubuntu7.7 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CompositorRunning: None CurrentDesktop: ubuntu:GNOME Date: Wed Jul 24 09:47:59 2019 DistUpgraded: Fresh install DistroCodename: bionic DistroVariant: ubuntu ExtraDebuggingInterest: Yes GpuHangFrequency: Several times a week GpuHangReproducibility: Seems to happen randomly GpuHangStarted: Within the last few days GraphicsCard: Intel Corporation Device [8086:3ea0] (prog-if 00 [VGA controller]) Subsystem: Dell Device [1028:08af] InstallationDate: Installed on 2019-07-20 (3 days ago) InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210) MachineType: Dell Inc. XPS 13 9380 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-1047-oem root=UUID=77efb06b-1ce6-4749-a131-67f57aa8b21b ro quiet splash vt.handoff=1 SourcePackage: xorg Symptom: display Title: Xorg freeze UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 03/29/2019 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.3.2 dmi.board.name: 0KTW76 dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 10 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.3.2:bd03/29/2019:svnDellInc.:pnXPS139380:pvr:rvnDellInc.:rn0KTW76:rvrA00:cvnDellInc.:ct10:cvr: dmi.product.family: XPS dmi.product.name: XPS 13 9380 dmi.sys.vendor: Dell Inc. version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.97-1ubuntu1~18.04.1 version.libgl1-mesa-dri: libgl1-mesa-dri 19.0.2-1ubuntu1.1~18.04.2 version.libgl1-mesa-glx: libgl1-mesa-glx 19.0.2-1ubuntu1.1~18.04.2 version.xserver-xorg-core: xserver-xorg-core N/A version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A version.xserver-xorg-video-ati: xserver-xorg-video-ati N/A version.xserver-xorg-video-intel: xserver-xorg-video-intel N/A version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau N/A To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1837683/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp