Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v3.18 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'. If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-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/v3.18-rc1-utopic/ ** Changed in: linux (Ubuntu) Importance: Undecided => Medium ** Changed in: linux (Ubuntu) Status: New => Triaged -- 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/1380802 Title: ch341-uart ttyUSB0: usb_serial_generic_write_bulk_callback - nonzero urb status: -71 Status in The Linux Kernel: Unknown Status in “linux” package in Ubuntu: Triaged Bug description: [ 1014.961203] ch341-uart ttyUSB0: usb_serial_generic_write_bulk_callback - nonzero urb status: -71 [ 1014.961252] ch341-uart ttyUSB0: usb_serial_generic_read_bulk_callback - nonzero urb status: -71 [ 1014.961418] ch341-uart ttyUSB0: usb_serial_generic_write_bulk_callback - nonzero urb status: -71 [ 1014.961465] ch341-uart ttyUSB0: usb_serial_generic_read_bulk_callback - nonzero urb status: -71 [ 1014.961619] ch341-uart ttyUSB0: usb_serial_generic_write_bulk_callback - nonzero urb status: -71 [ 1014.961636] ch341-uart ttyUSB0: usb_serial_generic_read_bulk_callback - nonzero urb status: -71 [ 1014.961781] ch341-uart ttyUSB0: usb_serial_generic_write_bulk_callback - nonzero urb status: -71 [ 1014.961802] ch341-uart ttyUSB0: usb_serial_generic_read_bulk_callback - nonzero urb status: -71 [ 1014.962044] ch341-uart ttyUSB0: usb_serial_generic_write_bulk_callback - nonzero urb status: -71 ProblemType: Bug DistroRelease: Ubuntu 14.10 Package: linux-image-3.16.0-22-generic 3.16.0-22.29 ProcVersionSignature: Ubuntu 3.16.0-22.29-generic 3.16.4 Uname: Linux 3.16.0-22-generic x86_64 ApportVersion: 2.14.7-0ubuntu5 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: caravena 3117 F.... pulseaudio CurrentDesktop: GNOME Date: Mon Oct 13 18:12:13 2014 HibernationDevice: RESUME=UUID=360bd2d2-4f44-4311-86d6-4781ac81ee87 InstallationDate: Installed on 2014-09-25 (18 days ago) InstallationMedia: Ubuntu-GNOME 14.10 "Utopic Unicorn" - Alpha amd64 (20140923) MachineType: SAMSUNG ELECTRONICS CO., LTD. 530U3C/530U4C ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-3.16.0-22-generic root=UUID=0fb75fae-baa3-428b-ace4-498e69ff7fb6 ro rootflags=subvol=@ quiet splash nomdmonddf nomdmonisw vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.16.0-22-generic N/A linux-backports-modules-3.16.0-22-generic N/A linux-firmware 1.135 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/15/2013 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: P14AAJ dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: SAMSUNG_NP1234567890 dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.board.version: FAB1 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrP14AAJ:bd04/15/2013:svnSAMSUNGELECTRONICSCO.,LTD.:pn530U3C/530U4C:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnSAMSUNG_NP1234567890:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1: dmi.product.name: 530U3C/530U4C dmi.product.version: 0.1 dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD. To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1380802/+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
