[Bug 556854] [NEW] serial ports malfunction on lucid
Eric Firing
efiring at hawaii.edu
Tue Apr 6 21:22:40 UTC 2010
Public bug reported:
Problem is found via simplest test of serial port send and receive using
two machines, "A" and "B". "A" is running Hardy with a single-port
Keyspan USB-serial interface. This has been used extensively with a
variety of applications. "B" is the present machine, with lucid updated
yesterday, with a built-in serial port, and with another Keyspan.
Connect "A" to B-builtin-port. On "A":
cat /dev/ttyUSB0
on "B":
echo "test" > /dev/ttyS0
Result is OK: "A" gets the message, so the built-in port sends.
Reverse the roles, however, and "B" does not get the message--it can't receive.
Same procedure, but with the Keyspan on "B": first, /dev/ttyUSB0 comes
up with odd default settings (57600 -icanon -echo -echoe, so use stty
to change them:
stty -F /dev/ttyUSB0 9600
stty -F /dev/ttyUSB0 icanon
stty -F /dev/ttyUSB0 echo echoe
Then try the same test, with the result that "B-Keyspan" neither sends
nor receives.
We have not been using any built-in ports recently, but we have used the
Keyspan and other serial interfaces extensively on several machines with
Hardy and Jaunty. On Karmic we found that the single-port Keyspan
worked for sending and receiving text, but failed with ymodem data
transfer attempts (which worked on Hardy and Jaunty), but the 4-port
Keyspan worked for both.
ProblemType: Bug
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
AplayDevices:
**** List of PLAYBACK Hardware Devices ****
card 0: I82801CAICH3 [Intel 82801CA-ICH3], device 0: Intel ICH [Intel 82801CA-ICH3]
Subdevices: 1/1
Subdevice #0: subdevice #0
Architecture: i386
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: joolee 1388 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
Card hw:0 'I82801CAICH3'/'Intel 82801CA-ICH3 with CS4205 at irq 5'
Mixer name : 'Cirrus Logic CS4205 rev 3'
Components : 'AC97a:4352595b'
Controls : 42
Simple ctrls : 27
Date: Tue Apr 6 10:59:01 2010
DistroRelease: Ubuntu 10.04
HibernationDevice: RESUME=UUID=255e6208-e420-4504-813a-5db0dd4c62d8
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Beta i386 (20100318)
IwConfig:
lo no wireless extensions.
eth0 no wireless extensions.
Lsusb:
Bus 002 Device 002: ID 06cd:0121 Keyspan USA-19hs serial adapter
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
MachineType: Dell Computer Corporation Inspiron 8200
Package: linux-image (not installed)
PccardctlIdent:
Socket 0:
no product info available
Socket 1:
no product info available
PccardctlStatus:
Socket 0:
no card
Socket 1:
no card
ProcCmdLine: BOOT_IMAGE=/vmlinuz-2.6.32-16-generic root=UUID=5d63e12e-7846-41bc-a38e-ad6a1f1c23ee ro quiet splash
ProcEnviron:
LANG=en_US.utf8
SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.32-16.25-generic
Regression: Yes
RelatedPackageVersions: linux-firmware 1.32
Reproducible: Yes
RfKill:
SourcePackage: linux
TestedUpstream: No
Uname: Linux 2.6.32-16-generic i686
dmi.bios.date: 01/07/2004
dmi.bios.vendor: Dell Computer Corporation
dmi.bios.version: A11
dmi.board.name: Inspiron 8200
dmi.board.vendor: Dell Computer Corporation
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Computer Corporation
dmi.modalias: dmi:bvnDellComputerCorporation:bvrA11:bd01/07/2004:svnDellComputerCorporation:pnInspiron8200:pvr:rvnDellComputerCorporation:rnInspiron8200:rvr:cvnDellComputerCorporation:ct8:cvr:
dmi.product.name: Inspiron 8200
dmi.sys.vendor: Dell Computer Corporation
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug i386 lucid needs-upstream-testing regression-potential
--
serial ports malfunction on lucid
https://bugs.launchpad.net/bugs/556854
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