Did this issue start happening after an update/upgrade? Was there a prior kernel version where you were not having this particular problem?
Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.18 kernel[0]. If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.18.3 ** Changed in: linux (Ubuntu) Importance: Undecided => Medium ** Changed in: linux (Ubuntu) Status: Confirmed => 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/1788245 Title: [radeon] bug in the bootin of ubunut Status in linux package in Ubuntu: Incomplete Bug description: [Firmware Bug]: cpu 0, invalid threshol interrupt offset 1 for blank, block 0 (MSR00000143=0XD000000000100000) [DRM:hwss_wait_for_blank_complete [amdgpu]] *ERROR* DC: failed to blank crtc! ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: xorg 1:7.7+19ubuntu7.1 Uname: Linux 4.17.0-041700-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 Aug 21 11:39:34 2018 DistUpgraded: Fresh install DistroCodename: bionic DistroVariant: ubuntu GraphicsCard: Advanced Micro Devices, Inc. [AMD/ATI] Device [1002:98e4] (rev d4) (prog-if 00 [VGA controller]) Subsystem: Hewlett-Packard Company Device [103c:8324] InstallationDate: Installed on 2018-07-23 (28 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) MachineType: Hewlett-Packard HP 245 G6 Notebook PC ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.17.0-041700-generic root=UUID=4b6c470e-c369-48f8-9fef-f65af5ba0d88 ro quiet splash vt.handoff=1 SourcePackage: xorg Symptom: display UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 03/12/2018 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: F.22 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: 8324 dmi.board.vendor: Hewlett-Packard dmi.board.version: 22.25 dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF.22:bd03/12/2018:svnHewlett-Packard:pnHP245G6NotebookPC:pvr:rvnHewlett-Packard:rn8324:rvr22.25:cvnHewlett-Packard:ct10:cvrChassisVersion: dmi.product.family: 103C_5336AN HP 200 dmi.product.name: HP 245 G6 Notebook PC dmi.sys.vendor: Hewlett-Packard version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.93+git1808171830.f31fd5~oibaf~b version.libgl1-mesa-dri: libgl1-mesa-dri 18.3~git1808170730.de3b34~oibaf~b version.libgl1-mesa-glx: libgl1-mesa-glx 18.3~git1808170730.de3b34~oibaf~b 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 1:18.0.99+git1808200734.60cd28~oibaf~b version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git1807201025.3d3950~oibaf~b version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15+git1807201019.ac8f7b~oibaf~b To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1788245/+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