Public bug reported:
Binary package hint: linux-image-generic
In spite of the fact that the device is recognized and the corresponding module
is loaded,
there is no serial line via /dev/ttyUSB0
$ lsusb | grep -i serial
Bus 001 Device yUSB0002: ID 067b:2303 Prolific Technology, Inc. PL2303 Serial
Port
$ lsmod | grep -i serial
usbserial 33100 1 pl2303
$ ls -l /dev/ttyU*
crw-rw---- 1 root dialout 188, 0 2011-01-07 18:58 /dev/ttyUSB0
ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: linux-image-2.6.35-24-generic 2.6.35-24.42
Regression: Yes
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.35-24.42-generic 2.6.35.8
Uname: Linux 2.6.35-24-generic i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
AplayDevices:
**** List of PLAYBACK Hardware Devices ****
card 0: PCI [ESS Maestro3 PCI], device 0: Maestro3 [Maestro3]
Subdevices: 2/2
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
Architecture: i386
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: PCI [ESS Maestro3 PCI], device 0: Maestro3 [Maestro3]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path',
'/dev/snd/controlC0', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/seq',
'/dev/snd/timer'] failed with exit code 1:
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
Card hw:0 'PCI'/'ESS Maestro3 PCI at 0xec00, irq 5'
Mixer name : 'SigmaTel STAC9721,23'
Components : 'AC97a:83847609'
Controls : 31
Simple ctrls : 21
Date: Sat Jan 8 12:27:30 2011
HibernationDevice: RESUME=/dev/sda2
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100427.1)
Lsusb:
Bus 001 Device 002: ID 067b:2303 Prolific Technology, Inc. PL2303 Serial Port
Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
MachineType: Dell Computer Corporation Latitude C800
PccardctlStatus:
Socket 0:
no card
Socket 1:
5.0V 16-bit PC Card
Subdevice 0 (function 0) bound to driver "orinoco_cs"
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-24-generic
root=UUID=4f04ca29-3bfa-4d76-bb04-80eecf26944b ro quiet splash
ProcEnviron:
PATH=(custom, user)
LANG=en_US.UTF-8
SHELL=/bin/bash
RelatedPackageVersions: linux-firmware 1.38
RfKill:
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
SourcePackage: linux
dmi.bios.date: 01/21/2004
dmi.bios.vendor: Dell Computer Corporation
dmi.bios.version: A23
dmi.board.name: Latitude C800
dmi.board.vendor: Dell Computer Corporation
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Computer Corporation
dmi.modalias:
dmi:bvnDellComputerCorporation:bvrA23:bd01/21/2004:svnDellComputerCorporation:pnLatitudeC800:pvr:rvnDellComputerCorporation:rnLatitudeC800:rvr:cvnDellComputerCorporation:ct8:cvr:
dmi.product.name: Latitude C800
dmi.sys.vendor: Dell Computer Corporation
** Affects: linux-meta (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug i386 kernel-uncat maverick needs-upstream-testing
regression-update
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https://bugs.launchpad.net/bugs/700316
Title:
usbserial stopped working during a recent upgrade, no serial line via usb
anymore
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