This looks like a low level problem. So either in the kernel, or in the Xorg driver.
Since you are using the old Xorg driver 'xserver-xorg-video-intel', I first recommend removing that package or changing your Xorg config to NOT use the 'intel' driver. Your system is easily new enough to use the recommended 'modesetting' driver instead. Please remove the 'intel' driver and retest. Then please run: journalctl -b0 > journal.txt and send us the file 'journal.txt'. ** Changed in: xorg-server (Ubuntu) Status: New => Incomplete ** Package changed: xorg-server (Ubuntu) => xserver-xorg-video-intel (Ubuntu) -- 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/1816231 Title: There is regular screen flickering/flashing (when the mouse isn't moving) Status in xserver-xorg-video-intel package in Ubuntu: Incomplete Bug description: I have installed the 18.04.2 lts version. I have a basic intel graphics card It says unable to locate package pkgname when I type apt-cache policy pkgname. I think it's a problem with the xorg file. not sure. When the mouse tracker is moving there does'nt seem to be a problem. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: xorg 1:7.7+19ubuntu7.1 ProcVersionSignature: Ubuntu 4.18.0-15.16~18.04.1-generic 4.18.20 Uname: Linux 4.18.0-15-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.5 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CompositorRunning: None CurrentDesktop: ubuntu:GNOME Date: Sat Feb 16 18:06:57 2019 DistUpgraded: Fresh install DistroCodename: bionic DistroVariant: ubuntu ExtraDebuggingInterest: I just need to know a workaround GraphicsCard: Intel Corporation HD Graphics 5500 [8086:1616] (rev 09) (prog-if 00 [VGA controller]) Subsystem: ASUSTeK Computer Inc. HD Graphics 5500 [1043:19ad] InstallationDate: Installed on 2019-02-16 (0 days ago) InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210) MachineType: ASUSTeK COMPUTER INC. X555LAB ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.18.0-15-generic root=UUID=ef09309f-b8f6-4d98-9c90-7b08ac5e2392 ro quiet splash vt.handoff=1 SourcePackage: xorg UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 12/19/2014 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: X555LAB.303 dmi.board.asset.tag: ATN12345678901234567 dmi.board.name: X555LAB dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: 1.0 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: ASUSTeK COMPUTER INC. dmi.chassis.version: 1.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrX555LAB.303:bd12/19/2014:svnASUSTeKCOMPUTERINC.:pnX555LAB:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnX555LAB:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0: dmi.product.family: X dmi.product.name: X555LAB dmi.product.sku: ASUS-NotebookSKU dmi.product.version: 1.0 dmi.sys.vendor: ASUSTeK COMPUTER INC. version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.95-1~18.04.1 version.libgl1-mesa-dri: libgl1-mesa-dri 18.2.2-0ubuntu1~18.04.2 version.libgl1-mesa-glx: libgl1-mesa-glx 18.2.2-0ubuntu1~18.04.2 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/xserver-xorg-video-intel/+bug/1816231/+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