Comment 25 for bug 1773137

I think cause of the bad algorithm that to detect USB cable.

2018-07-23 0:27 GMT+07:00 Kai-Heng Feng <email address hidden>:

> So what's the first "bad" -rc kernel that introduces the regression?
>
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> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1773137
>
> Title:
> USB2 keep resetting. kernel: usb 2-1: USB disconnect
>
> Status in linux package in Ubuntu:
> Confirmed
> Status in linux-signed package in Ubuntu:
> Confirmed
>
> Bug description:
> Hello, I have found a bug.
> This bug is related to USB2, I have DVD RW external that using USB2
> port. I using the kernel 4.15.0-22.
> I also attached the error log from dmesg.
>
> ProblemType: Bug
> DistroRelease: Ubuntu 18.04
> Package: linux-image-4.15.0-22-generic 4.15.0-22.24
> ProcVersionSignature: Ubuntu 4.15.0-22.24-generic 4.15.17
> Uname: Linux 4.15.0-22-generic x86_64
> ApportVersion: 2.20.9-0ubuntu7
> Architecture: amd64
> CurrentDesktop: KDE
> Date: Thu May 24 17:26:01 2018
> InstallationDate: Installed on 2018-04-14 (40 days ago)
> InstallationMedia: Kubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64
> (20160719)
> SourcePackage: linux-signed
> UpgradeStatus: Upgraded to bionic on 2018-04-27 (26 days ago)
> ---
> ApportVersion: 2.20.9-0ubuntu7
> Architecture: amd64
> AudioDevicesInUse:
> USER PID ACCESS COMMAND
> /dev/snd/controlC0: mate 1622 F.... pulseaudio
> /dev/snd/pcmC1D0p: mate 1622 F...m pulseaudio
> /dev/snd/controlC1: mate 1622 F.... pulseaudio
> CurrentDesktop: KDE
> DistroRelease: Ubuntu 18.04
> InstallationDate: Installed on 2018-04-14 (41 days ago)
> InstallationMedia: Kubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64
> (20160719)
> MachineType: LENOVO 20369
> Package: linux-signed
> ProcFB: 0 inteldrmfb
> ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-22-generic
> root=UUID=a14e83f1-8214-4bdd-a01d-d6cebd312997 ro quiet splash
> vt.handoff=1
> ProcVersionSignature: Ubuntu 4.15.0-22.24-generic 4.15.17
> RelatedPackageVersions:
> linux-restricted-modules-4.15.0-22-generic N/A
> linux-backports-modules-4.15.0-22-generic N/A
> linux-firmware 1.173
> Tags: bionic
> Uname: Linux 4.15.0-22-generic x86_64
> UpgradeStatus: Upgraded to bionic on 2018-04-27 (27 days ago)
> UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo vboxusers
> _MarkForUpload: True
> dmi.bios.date: 10/20/2014
> dmi.bios.vendor: LENOVO
> dmi.bios.version: 9ACN29WW
> dmi.board.asset.tag: No Asset Tag
> dmi.board.name: Lancer 4A2
> dmi.board.vendor: LENOVO
> dmi.board.version: NANANANANO DPK
> dmi.chassis.asset.tag: No Asset Tag
> dmi.chassis.type: 10
> dmi.chassis.vendor: LENOVO
> dmi.chassis.version: Lenovo G40-70
> dmi.modalias: dmi:bvnLENOVO:bvr9ACN29WW:bd10/20/2014:svnLENOVO:
> pn20369:pvrLenovoG40-70:rvnLENOVO:rnLancer4A2:rvrNANANANANODPK:cvnLENOVO:
> ct10:cvrLenovoG40-70:
> dmi.product.family: IDEAPAD
> dmi.product.name: 20369
> dmi.product.version: Lenovo G40-70
> dmi.sys.vendor: LENOVO
>
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