apport information ** Tags added: apport-collected trusty
** Description changed: I have several pieces of this cheap Chinese USB2serial port converter, which uses ch341.ko kernel module. By default / fault, the parity function of this chip is not implemented in the kernel driver. This causes that the converter is UNUSABLE on ubuntu linux 14.04 (latest updates installed, default kernel, current version 3.13.0-88-generic) There is a fix for that, applying that patch makes it work as it should be. All current ubuntu kernels miss this patch: http://blog.xentoo.info/2015/12/31/ubuntu-14-04-and-usb-to-serial-ch341-chinese-device-from-ebay/ I have to recompile the kernel module ch341.ko every time when new kernel version is installed. It seems to me while googling this, that somehow this fix haven't got into mainstream kernel. Please include this patch to all ubuntu kernel versions! Thank you! + --- + ApportVersion: 2.14.1-0ubuntu3.21 + Architecture: amd64 + AudioDevicesInUse: + USER PID ACCESS COMMAND + /dev/snd/controlC1: narancs 3260 F.... pulseaudio + /dev/snd/controlC0: narancs 3260 F.... pulseaudio + DistroRelease: Ubuntu 14.04 + HibernationDevice: RESUME=UUID=79d5ef01-c38c-44d6-9371-52cb0adb988e + InstallationDate: Installed on 2014-12-14 (546 days ago) + InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2) + MachineType: Hewlett-Packard HP ZBook 15 + NonfreeKernelModules: nvidia + Package: linux (not installed) + ProcEnviron: + TERM=xterm + PATH=(custom, no user) + LANG=hu_HU.UTF-8 + SHELL=/bin/bash + ProcFB: + + ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-88-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash + ProcVersionSignature: Ubuntu 3.13.0-88.135-generic 3.13.11-ckt39 + PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. + RelatedPackageVersions: + linux-restricted-modules-3.13.0-88-generic N/A + linux-backports-modules-3.13.0-88-generic N/A + linux-firmware 1.127.22 + Tags: trusty + Uname: Linux 3.13.0-88-generic x86_64 + UpgradeStatus: No upgrade log present (probably fresh install) + UserGroups: + + _MarkForUpload: True + dmi.bios.date: 04/10/2014 + dmi.bios.vendor: Hewlett-Packard + dmi.bios.version: L70 Ver. 01.08 + dmi.board.name: 1909 + dmi.board.vendor: Hewlett-Packard + dmi.board.version: KBC Version 94.51 + dmi.chassis.type: 10 + dmi.chassis.vendor: Hewlett-Packard + dmi.modalias: dmi:bvnHewlett-Packard:bvrL70Ver.01.08:bd04/10/2014:svnHewlett-Packard:pnHPZBook15:pvrA3009DC10203:rvnHewlett-Packard:rn1909:rvrKBCVersion94.51:cvnHewlett-Packard:ct10:cvr: + dmi.product.name: HP ZBook 15 + dmi.product.version: A3009DC10203 + dmi.sys.vendor: Hewlett-Packard ** Attachment added: "AlsaInfo.txt" https://bugs.launchpad.net/bugs/1591226/+attachment/4682749/+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/1591226 Title: ch341 usb serial converter kernel driver parity patch missing To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1591226/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
