Public bug reported: After a fresh install of ubuntu 18.04LTS(dual booted with windows 7) when I selected ubuntu from the grub menu to boot into the OS. But I got a black screen I waited for few seconds but I was still at black screen. So, I forced shutdown the laptop. Again in second attempt to login I got black screen this time I waited for more than a minute and pressed power button once which suspended the pc then I pressed enter and I was presented with login screen. To solve the problem I followed this guide https://askubuntu.com/questions/1029624/ubuntu-18-04-live-boot-leads-to- blank-screen
and changed quiet splash to nomodeset quiet splash. After applying this fix there was no black screen at the time of login, but the laptop started to freeze randomly even when left idle for more than 30 mins it would freeze. I had force shutdown each time and this happened very frequently. I again changed nomodeset quiet splash to quiet splash, which again leads to black screen after selecting ubuntu from the grub menu. I also did RAM test using Memtest86 from GRUB and everything was fine systemd-analyze time Startup finished in 6.015s (kernel) + 1min 26.820s (userspace) = 1min 32.836s graphical.target reached after 1min 25.472s in userspace ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: xorg 1:7.7+19ubuntu7 ProcVersionSignature: Ubuntu 4.15.0-29.31-generic 4.15.18 Uname: Linux 4.15.0-29-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.2 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CompositorRunning: None CurrentDesktop: ubuntu:GNOME Date: Tue Jul 31 00:17:48 2018 DistUpgraded: Fresh install DistroCodename: bionic DistroVariant: ubuntu DkmsStatus: virtualbox, 5.2.10, 4.15.0-29-generic, x86_64: installed ExtraDebuggingInterest: Yes GpuHangFrequency: Several times a day GpuHangReproducibility: Seems to happen randomly GpuHangStarted: Immediately after installing this version of Ubuntu GraphicsCard: Advanced Micro Devices, Inc. [AMD/ATI] Sumo [Radeon HD 6480G] [1002:9648] (prog-if 00 [VGA controller]) Subsystem: Hewlett-Packard Company Sumo [Radeon HD 6480G] [103c:3564] InstallationDate: Installed on 2018-07-26 (4 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) MachineType: Hewlett-Packard HP Pavilion g4 Notebook PC ProcEnviron: PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_IN SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-29-generic root=UUID=007c6619-ca84-4c0f-8b16-7fa740dc0c3e ro quiet splash vt.handoff=1 SourcePackage: xorg Symptom: display Title: Xorg freeze UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 01/24/2014 dmi.bios.vendor: Insyde dmi.bios.version: F.6D dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: 3564 dmi.board.vendor: Hewlett-Packard dmi.board.version: 21.47 dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnInsyde:bvrF.6D:bd01/24/2014:svnHewlett-Packard:pnHPPaviliong4NotebookPC:pvr0691130000204610000610100:rvnHewlett-Packard:rn3564:rvr21.47:cvnHewlett-Packard:ct10:cvrChassisVersion: dmi.product.family: 103C_5335KV G=N L=CON B=HP S=PAV dmi.product.name: HP Pavilion g4 Notebook PC dmi.product.version: 0691130000204610000610100 dmi.sys.vendor: Hewlett-Packard version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.91-2 version.libgl1-mesa-dri: libgl1-mesa-dri 18.0.5-0ubuntu0~18.04.1 version.libgl1-mesa-glx: libgl1-mesa-glx 18.0.5-0ubuntu0~18.04.1 version.xserver-xorg-core: xserver-xorg-core 2:1.19.6-1ubuntu4 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A 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 ** Affects: xorg (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug bionic freeze ubuntu -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1784473 Title: Xorg freeze To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1784473/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp