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Message #138038
[Bug 1501760] Re: ftdi USB<->TTL adapter stops working with 3.13.0-65-generic
benpicco, as per http://www.asrock.com/mb/Intel/H81M-
DGS%20R2.0/?cat=Download&os=BIOS an update to your computer's buggy and
outdated BIOS is available (1.60). If you update to this following
https://help.ubuntu.com/community/BIOSUpdate does it change anything?
If it doesn't, could you please both specify what happened, and provide the output of the following terminal command:
sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date
For more on BIOS updates and linux, please see
https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette
.
Please note your current BIOS is already in the Bug Description, so
posting this on the old BIOS would not be helpful. As well, you don't
have to create a new bug report.
Once the BIOS is updated, if the problem is still reproducible, and the
information above is provided, then please mark this report Status
Confirmed. Otherwise, please mark this as Invalid.
Thank you for your understanding.
** Tags added: bios-outdated-160
** Tags removed: bios-outdated-160
** Tags added: bios-outdated-1.60 regression-update
** Changed in: linux (Ubuntu)
Status: Triaged => Incomplete
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https://bugs.launchpad.net/bugs/1501760
Title:
ftdi USB<->TTL adapter stops working with 3.13.0-65-generic
Status in linux package in Ubuntu:
Incomplete
Bug description:
After yesterday's update I'm unable to connect to /dev/ttyUSB0, works
fine when I boot 3.13.0-63-generic
Affected devices:
Bus 003 Device 005: ID 0403:bcda Future Technology Devices International, Ltd Stellaris ICDI Board
Bus 003 Device 006: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
This has already been reported as a bug in Python, but it doesn't just
affect Python programs but everything trying to access the device.
https://bugs.launchpad.net/ubuntu/+source/python2.7/+bug/1501240
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-65-generic 3.13.0-65.105
ProcVersionSignature: Ubuntu 3.13.0-65.105-generic 3.13.11-ckt26
Uname: Linux 3.13.0-65-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.14.1-0ubuntu3.15
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: benpicco 2661 F.... pulseaudio
/dev/snd/controlC0: benpicco 2661 F.... pulseaudio
CurrentDesktop: Unity
Date: Thu Oct 1 15:21:24 2015
HibernationDevice: RESUME=UUID=9b23d804-46bf-4b3b-a691-2b45363a9d0e
InstallationDate: Installed on 2014-09-22 (374 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
IwConfig:
eth0 no wireless extensions.
lo no wireless extensions.
MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M.
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-65-generic.efi.signed root=UUID=67abec1c-41a2-45e9-8772-4a5930f9e310 ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.13.0-65-generic N/A
linux-backports-modules-3.13.0-65-generic N/A
linux-firmware 1.127.15
RfKill:
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/02/2014
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: P1.30
dmi.board.name: H81M-DGS R2.0
dmi.board.vendor: ASRock
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP1.30:bd07/02/2014:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnH81M-DGSR2.0:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.name: To Be Filled By O.E.M.
dmi.product.version: To Be Filled By O.E.M.
dmi.sys.vendor: To Be Filled By O.E.M.
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References