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** Changed in: linux (Ubuntu)
Status: Incomplete => Won't Fix
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https://bugs.launchpad.net/bugs/647501
Title:
Use of USB webcam disconnects wireless USB adaptor when launched
Status in Linux:
Invalid
Status in linux package in Ubuntu:
Won't Fix
Bug description:
$ lsb_release -rd
Description: Ubuntu 10.04.1 LTS
Also confirmed on:
Opensuse 11.2, Kubuntu 9.10 and Kubuntu 10.04 and live cd Ubuntu 10.10
Original Report:
When launching cheese, the webcam of my laptop is not started, cheese display
stays balck and the USB wireless adapter is being disconnected. The only way to
get back wireless connection is to restart Linux.
Sum-Up:
Often reported against webcam software or cameramonitor this bug seems to be
linked with driver uvcvideo. It also seem to be related to a kernel regression
from 2.6.30.
$ lsusb
Bus 001 Device 004: ID 0bda:8197 Realtek Semiconductor Corp. RTL8187B
Wireless Adapter
Bus 001 Device 003: ID 04f2:b008 Chicony Electronics Co., Ltd USB 2.0 Camera
Also with:
Bus 001 Device 003: ID 148f:2573 Ralink Technology, Corp. RT2501USB Wireless
Adapter
Bus 001 Device 004: ID 04f2:b022 Chicony Electronics Co., Ltd Gateway USB 2.0
Webcam
or:
Bus 001 Device 004: ID 04f2:b027 Chicony Electronics Co., Ltd Gateway USB 2.0
Webcam
Bus 001 Device 002: ID 050d:705a Belkin Components F5D7050A Wireless Adapter
May be related with Bug #575000
May be related with cameramonitor issue Bug #599185
May be related with camorama issue Bug #224821
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Architecture: amd64
DistroRelease: Ubuntu 10.04
InstallationMedia: Ubuntu 10.04.1 LTS "Lucid Lynx" - Release amd64
(20100816.1)
MachineType: TOSHIBA Satellite P300D
NonfreeKernelModules: fglrx
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[ 20.240758] uvcvideo: Found UVC 1.00 device Chicony USB 2.0 Camera
(04f2:b008)
[ 20.338460] input: Chicony USB 2.0 Camera as
/devices/pci0000:00/0000:00:13.5/usb1/1-3/1-3:1.0/input/input7
[ 20.338599] usbcore: registered new interface driver uvcvideo
[ 20.339341] USB Video Class driver (v0.1.0)
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See comment #15 for event reported when problem occurs, messages then mainly
related to wlan.
[ 717.620444] ehci_hcd 0000:00:13.5: force halt; handhake ffffc90000676424
00004000 00000000 -> -110
[ 720.110145] rtl8187: wireless radio switch turned off
[ 720.140161] wlan0: deauthenticating from 00:04:c8:7e:00:e7 by local choice
(reason=3)
[857]: CTRL-EVENT-DISCONNECTED - Disconnect event - remove keys
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