OK - I think I have found the kernel transition point where the CRTC (Cathode Ray Tube Controller?) flip_done timeout occurs:
4.7.10 --> OK ... 4.8.0 --> Onset of the CRTC flip_done timeout error I will attach the DMESG logs for 4.7.10 and 4.8.0 in the next two posts Thanks, deeks9000 -- 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/1767356 Title: [Compaq Presario A900 Notebook PC] ~5 minutes to boot or shutdown Status in linux package in Ubuntu: Incomplete Bug description: After upgrading to 18.04 from 17.10, it now takes ~5 minutes to boot or shutdown. REPORT FROM 'dmesg' shows this typical error: [ 899.040146] [drm:drm_atomic_helper_wait_for_dependencies [drm_kms_helper]] *ERROR* [CRTC:41:pipe B] flip_done timed out [ 909.280160] [drm:drm_atomic_helper_wait_for_dependencies [drm_kms_helper]] *ERROR* [PLANE:35:plane B] flip_done timed out WORKAROUND: Use kernel boot parameter: video=SVIDEO-1:d ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-modules-4.15.0-20-generic 4.15.0-20.21 ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17 Uname: Linux 4.15.0-20-generic x86_64 ApportVersion: 2.20.9-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: deeks 1979 F.... pulseaudio CurrentDesktop: ubuntu:GNOME Date: Fri Apr 27 13:22:59 2018 Dependencies: HibernationDevice: RESUME=UUID=0d34d409-a1d3-4f01-84d4-68614f421c15 InstallationDate: Installed on 2017-01-09 (472 days ago) InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719) MachineType: Hewlett-Packard Compaq Presario A900 Notebook PC ProcEnviron: LANGUAGE=en_GB:en PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_GB.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-20-generic root=UUID=c6b4332f-0c76-444c-9302-4fbab6c58497 ro quiet splash vt.handoff=1 RelatedPackageVersions: linux-restricted-modules-4.15.0-20-generic N/A linux-backports-modules-4.15.0-20-generic N/A linux-firmware 1.173 SourcePackage: linux UpgradeStatus: Upgraded to bionic on 2018-04-26 (0 days ago) dmi.bios.date: 01/24/2008 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: F.24 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: 30ED dmi.board.vendor: Hewlett-Packard dmi.board.version: 83.1F dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.chassis.version: N/A dmi.modalias: dmi:bvnHewlett-Packard:bvrF.24:bd01/24/2008:svnHewlett-Packard:pnCompaqPresarioA900NotebookPC:pvrF.24:rvnHewlett-Packard:rn30ED:rvr83.1F:cvnHewlett-Packard:ct10:cvrN/A: dmi.product.family: 103C_5335KV dmi.product.name: Compaq Presario A900 Notebook PC dmi.product.version: F.24 dmi.sys.vendor: Hewlett-Packard To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1767356/+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
