I can only see one kernel crash in the Intel graphics driver in your logs: [ 25.958597] ------------[ cut here ]------------ [ 25.958598] Could not determine valid watermarks for inherited state [ 25.958654] WARNING: CPU: 2 PID: 428 at /build/linux-E6MDAa/linux-4.15.0/drivers/gpu/drm/i915/intel_display.c:14537 intel_modeset_init+0xfcf/0x1010 [i915] [ 25.958654] Modules linked in: i915(+) snd_hda_intel snd_hda_codec snd_hda_core intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc aesni_intel aes_x86_64 crypto_simd glue_helper cryptd intel_cstate intel_rapl_perf snd_hwdep snd_pcm snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq snd_seq_device joydev arc4 video hp_accel(+) input_leds lis3lv02d serio_raw rt2800pci rt2800mmio rt2800lib rt2x00pci rt2x00mmio rt2x00lib mac80211 lpc_ich hp_wireless cfg80211 snd_timer eeprom_93cx6 jmb38x_ms memstick wmi snd input_polldev mac_hid drm_kms_helper drm soundcore i2c_algo_bit fb_sys_fops syscopyarea sysfillrect sysimgblt shpchp mei_me mei sch_fq_codel parport_pc ppdev lp parport ip_tables x_tables autofs4 hid_generic usbhid [ 25.958687] hid ahci psmouse r8169 libahci sdhci_pci mii sdhci [ 25.958693] CPU: 2 PID: 428 Comm: systemd-udevd Not tainted 4.15.0-72-generic #81-Ubuntu [ 25.958693] Hardware name: Hewlett-Packard HP ProBook 4540s/17F6, BIOS 68IRR Ver. F.68 04/11/2019 [ 25.958723] RIP: 0010:intel_modeset_init+0xfcf/0x1010 [i915] [ 25.958724] RSP: 0018:ffffb26d414cb9b0 EFLAGS: 00010286 [ 25.958725] RAX: 0000000000000000 RBX: ffff9205b0fd0000 RCX: 0000000000000006 [ 25.958726] RDX: 0000000000000007 RSI: 0000000000000082 RDI: ffff9205bfa96490 [ 25.958726] RBP: ffffb26d414cba40 R08: 0000000000000339 R09: 0000000000000004 [ 25.958727] R10: 0000000000000040 R11: 0000000000000001 R12: ffff9205ae0e4800 [ 25.958727] R13: ffff9205ad0e9800 R14: 00000000ffffffea R15: ffff9205b0fd0358 [ 25.958729] FS: 00007f132d28f680(0000) GS:ffff9205bfa80000(0000) knlGS:0000000000000000 [ 25.958729] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 25.958730] CR2: 000055caa042c7c0 CR3: 00000002349ae004 CR4: 00000000001606e0 [ 25.958731] Call Trace: [ 25.958756] i915_driver_load+0xa73/0xe60 [i915] [ 25.958780] i915_pci_probe+0x42/0x70 [i915] [ 25.958782] local_pci_probe+0x47/0xa0
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1856521 Title: [i915] screen keeps flashing on startup Status in linux package in Ubuntu: Incomplete Bug description: I have searched different forum and most of them suggested that it's a graphics card issue. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: xorg 1:7.7+19ubuntu7.1 ProcVersionSignature: Ubuntu 4.15.0-72.81-generic 4.15.18 Uname: Linux 4.15.0-72-generic x86_64 .tmp.unity_support_test.0: ApportVersion: 2.20.9-0ubuntu7.9 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: None CurrentDesktop: ubuntu:GNOME Date: Mon Dec 16 13:11:43 2019 DistUpgraded: Fresh install DistroCodename: bionic DistroVariant: ubuntu ExtraDebuggingInterest: Yes, including running git bisection searches GraphicsCard: Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Hewlett-Packard Company 3rd Gen Core processor Graphics Controller [103c:17f6] InstallationDate: Installed on 2016-11-05 (1135 days ago) InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719) MachineType: Hewlett-Packard HP ProBook 4540s ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-72-generic root=UUID=ffb012cd-6e09-453a-adcb-2370a8a9e10f ro quiet splash vt.handoff=1 SourcePackage: xorg UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/11/2019 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: 68IRR Ver. F.68 dmi.board.name: 17F6 dmi.board.vendor: Hewlett-Packard dmi.board.version: KBC Version 58.21 dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.modalias: dmi:bvnHewlett-Packard:bvr68IRRVer.F.68:bd04/11/2019:svnHewlett-Packard:pnHPProBook4540s:pvrA1018C1100:rvnHewlett-Packard:rn17F6:rvrKBCVersion58.21:cvnHewlett-Packard:ct10:cvr: dmi.product.family: 103C_5336AN G=N L=BUS B=HP S=PRO dmi.product.name: HP ProBook 4540s dmi.product.version: A1018C1100 dmi.sys.vendor: Hewlett-Packard version.compiz: compiz 1:0.9.13.1+18.04.20180302-0ubuntu1 version.libdrm2: libdrm2 2.4.97-1ubuntu1~18.04.1 version.libgl1-mesa-dri: libgl1-mesa-dri 19.0.8-0ubuntu0~18.04.3 version.libgl1-mesa-glx: libgl1-mesa-glx 19.0.8-0ubuntu0~18.04.3 version.xserver-xorg-core: xserver-xorg-core 2:1.19.6-1ubuntu4.3 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.5-1ubuntu1 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:18.0.1-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20171229-1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15-2 xserver.bootTime: Mon Dec 16 12:48:38 2019 xserver.configfile: default xserver.logfile: /var/log/Xorg.0.log xserver.version: 2:1.19.6-1ubuntu4.3 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1856521/+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