It looks like the kernel is running out of memory so freezes are expected. Please try running without all those chrome and opera tabs open and see if the problem reoccurs.
If you can't add more physical RAM then consider adding a swapfile to the system: https://help.ubuntu.com/community/SwapFaq You may also want to consider reinstalling the OS with a large swap partition enabled. ** Package changed: xorg-server (Ubuntu) => linux (Ubuntu) ** Changed in: linux (Ubuntu) Status: New => Incomplete -- 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/1803353 Title: Display freezes (possible i915 freeze/hang) Status in linux package in Ubuntu: Incomplete Bug description: Xorg suddenly stops updating the display and CTRL+ALT+F1 does not work. The issue happens randomly and does not seem to be related to content being rendered. This time the display hang occurred while I was typing in gnome-terminal. I can successfully ssh into the system from another computer and run ubuntu-bug xorg while the display is frozen. Disconnecting the display port cable and reconnecting does not successfully restore the image. However, after disconnecting the cable and reconnecting, the monitor never resumed from DPMS suspend so the signal emitted did in fact change when I disconnected the cable. The problem occurs both with official lowlatency Ubuntu kernel and custom kernel built from vanilla kernel sources. I haven't found a way to deduce if this is in reality caused by kernel, xorg or the hardware. However, considering that this happens with many different kernel versions, I'd assume this is caused by xorg, instead. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: xorg 1:7.7+13ubuntu3.1 Uname: Linux 4.18.0-memalloc-watchdog+ x86_64 ApportVersion: 2.20.1-0ubuntu2.18 Architecture: amd64 CompizPlugins: [core,composite,opengl,compiztoolbox,decor,regex,mousepoll,move,resize,imgpng,wall,animation,grid,fade,place,vpswitch,gnomecompat,session,workarounds,expo,scale,ezoom] Date: Wed Nov 14 15:23:50 2018 DistUpgraded: 2016-06-10 11:06:21,514 WARNING no activity on terminal for 300 seconds (Applying changes) DistroCodename: xenial DistroVariant: ubuntu ExtraDebuggingInterest: Yes GraphicsCard: Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor Graphics Controller [8086:0162] (rev 09) (prog-if 00 [VGA controller]) Subsystem: ASUSTeK Computer Inc. P8 series motherboard [1043:84ca] InstallationDate: Installed on 2015-02-23 (1360 days ago) InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1) MachineType: System manufacturer System Product Name ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.18.0-memalloc-watchdog+ root=UUID=254cacdb-f61b-45a6-9885-37afd2b598ce ro libata.noacpi=1 quiet splash vt.handoff=7 SourcePackage: xorg UpgradeStatus: Upgraded to xenial on 2016-06-10 (887 days ago) dmi.bios.date: 02/04/2013 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 1101 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: P8H77-M PRO dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: Rev X.0x dmi.chassis.asset.tag: Asset-1234567890 dmi.chassis.type: 3 dmi.chassis.vendor: Chassis Manufacture dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1101:bd02/04/2013:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnP8H77-MPRO:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion: dmi.product.family: To be filled by O.E.M. dmi.product.name: System Product Name dmi.product.sku: SKU dmi.product.version: System Version dmi.sys.vendor: System manufacturer version.compiz: compiz 1:0.9.12.3+16.04.20180221-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.91-2~16.04.1 version.libgl1-mesa-dri: libgl1-mesa-dri 18.0.5-0ubuntu0~16.04.1 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 18.0.5-0ubuntu0~16.04.1 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 xserver.bootTime: Thu Sep 6 15:40:48 2018 xserver.configfile: default xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.outputs: product id 41047 vendor DEL xserver.version: 2:1.19.5-0ubuntu2~16.04.1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1803353/+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
