apport information ** Tags added: apport-collected zesty
** Description changed: I am using a Aten KVM switch CS1794 hooked on my computer. It allows the switching for USB, HDMI, and audio. http://www.aten.com/global/en/products/kvm/desktop-kvm-switches/cs1794/#.WWrnguk9iUk I run a Ubuntu 17.04 system. I experience a very long boot time, having done an analysis it appears that the main problem is the kernel boot time and more specifically the time it takes to start its USB subsystem. - when you look at the dsmg output you can clearly see a gap between 4-78s - and 79-91s, all in the USB sub-process. + when you look at the dsmg output you can clearly see a gap between 4-78s and 79-91s, all in the USB sub-process. + --- + ApportVersion: 2.20.4-0ubuntu4.4 + Architecture: amd64 + AudioDevicesInUse: + USER PID ACCESS COMMAND + /dev/snd/controlC2: stranche 3670 F.... pulseaudio + /dev/snd/controlC1: stranche 3670 F.... pulseaudio + /dev/snd/controlC0: stranche 3670 F.... pulseaudio + DistroRelease: Ubuntu 17.04 + HibernationDevice: RESUME=UUID=28d4f703-2b20-4dd3-ba8b-aa363ad5141d + InstallationDate: Installed on 2017-07-14 (2 days ago) + InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412) + MachineType: System manufacturer System Product Name + NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia + Package: linux (not installed) + ProcFB: 0 EFI VGA + ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.10.0-26-generic.efi.signed root=UUID=4fde9883-6d7f-4954-90d6-779f37bbdc93 ro console=tty console=ttyUSB0,57600 noplymouth debug + ProcVersionSignature: Ubuntu 4.10.0-26.30-generic 4.10.17 + PulseList: + Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied + No PulseAudio daemon running, or not running as session daemon. + RelatedPackageVersions: + linux-restricted-modules-4.10.0-26-generic N/A + linux-backports-modules-4.10.0-26-generic N/A + linux-firmware 1.164.1 + RfKill: + + Tags: zesty + Uname: Linux 4.10.0-26-generic x86_64 + UpgradeStatus: No upgrade log present (probably fresh install) + UserGroups: + + _MarkForUpload: True + dmi.bios.date: 08/13/2013 + dmi.bios.vendor: American Megatrends Inc. + dmi.bios.version: 2104 + dmi.board.asset.tag: To be filled by O.E.M. + dmi.board.name: SABERTOOTH Z77 + dmi.board.vendor: ASUSTeK COMPUTER INC. + dmi.board.version: Rev 1.xx + dmi.chassis.asset.tag: Asset-1234567890 + dmi.chassis.type: 3 + dmi.chassis.vendor: Chassis Manufacture + dmi.chassis.version: Chassis Version + dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr2104:bd08/13/2013:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnSABERTOOTHZ77:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion: + dmi.product.name: System Product Name + dmi.product.version: System Version + dmi.sys.vendor: System manufacturer ** Attachment added: "AlsaInfo.txt" https://bugs.launchpad.net/bugs/1704614/+attachment/4915827/+files/AlsaInfo.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1704614 Title: very long kernel boot time with some KVM switch To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1704614/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
