Hi Christopher, I have tracked down my 'flip_done timed out' fault!
I noticed in my DMESG log that in the lines where 'flip_done timed out' occurred with long delay periods of over 10 seconds, the error referred to 'SVIDEO-1'. A quick Google on that revealed that I am not alone and that this is a known issue relating to old Intel graphics hardware: https://wiki.archlinux.org/index.php/intel_graphics http://distro.ibiblio.org/fatdog/web/faqs/intel-graphics.html My Compaq Presario A900 is over 10 years old so I guess my integrated Intel graphics chipset is not so well supported these days. The remedy is to put 'video=SVIDEO-1:d' as part of my kernel boot parameters via the grub bootloader options, in the file: /etc/default/grub ## Updating the following text line to disable the S-VIDEO interface... GRUB_CMDLINE_LINUX_DEFAULT="quiet splash video=SVIDEO-1:d" ## Followed by... sudo update-grub My Ubuntu 18.04 is now quick to bootup and shutdown, and with no 'flip_done timed out' errors! Yay! I have tested this with both the current kernel 4.15.0 and the upstream kernel 4.17.0 and all is OK. Thank you very much for your help and guidance. I have learnt a little bit more about Linux/Ubuntu during this exercise and have managed to vastly speed up the boot time of my Ubuntu laptop in the process. It looks like this bug was affecting me for many old kernels and I just hadn't noticed it! I will make a note on the official bug report thread and close it off as 'solved'. Kind regards, Derick (deeks9000) On Mon, May 21, 2018 at 5:05 PM, Christopher M. Penalver < christopher.m.penal...@gmail.com> wrote: > deeks9000: > > 1) Regarding the BIOS Error, you are welcome to update your BIOS to see > if this provides resolution. > > 2) The next step is to fully commit bisect from kernel 4.13 to 4.15 in > order to identify the last good kernel commit, followed immediately by > the first bad one. This will allow for a more expedited analysis of the > root cause of your issue. Could you please do this following > https://wiki.ubuntu.com/Kernel/KernelBisection ? > > Please note, finding adjacent kernel versions, or providing a commit > from a kernel version bisect is not fully commit bisecting. > > Also, the kernel release names are irrelevant for the purposes of > bisecting. > > It is most helpful that after the fix commit (not kernel version) has > been identified, you then mark this report Status Confirmed. > > Thank you for your help. > > ** Tags added: kernel-bug-exists-upstream needs-bisect > > ** Summary changed: > > - Long boot time (approx 5 minuntes!), long shutdown > + [Compaq Presario A900 Notebook PC] ~5 minutes to boot or shutdown > > -- > You received this bug notification because you are subscribed to the bug > report. > 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: > SCENARIO: I have just upgraded to 18.04 from 17.10 > > PROBLEM PACKAGE (?): linux-modules-4.15.0-20-generic > > 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 > > BASIC DETAILS: > 'flip_done' timed out does not sound good to me! Is this the reason for > the extremely long boot time observed? Approximate boot time is 5 minutes! > Long delays on shutdown also. > > The new system works great once it is up and running! My laptop is 10 > years old (Comapaq Presario A900), but it has worked well with Ubuntu > over the years and I was hoping that the 18.04 would have a *faster* > boot time, so I was excited to install the new system. Alas, it now > suffers from excessively long boot time which I am convinced is due to > a timeout error. But I do not have enough knowledge to know exactly > what exactly is 'timing out'? (Integrated graphics card possibly?) > > Graphics card details: > Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller > (primary) (rev 03) > > Thanks > > 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 > -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1767356 Title: [Compaq Presario A900 Notebook PC] ~5 minutes to boot or shutdown To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1767356/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
