[Bug 552384] [NEW] Does not detect webcam often

[Vish]

Public bug reported:

I'v noticed the behavior only recently and I do not think it is hardware
specific , since others are noticing similar problems as well [
https://bugs.launchpad.net/ubuntu/+source/cheese/+bug/298545/comments/17
]

The webcam does not work properly and displays weird artifacts [attached
photo taken]

When i restart it sometimes starts working. This is quite a random
behavior.

Webcam was working properly without any problems until 20th March , but problems started after an update on 21st , Hence i reported > Bug #545079 
A list of the updates after which i started noticing the problem :
https://bugs.launchpad.net/ubuntu/+source/cheese/+bug/545079/comments/5

I also notice the following messages in the logs
Mar 31 12:18:30 vish-laptop kernel: [   17.860911] gspca: main v2.7.0 registered
[...]
Mar 31 12:18:30 vish-laptop kernel: [   17.917341] gspca: probing 046d:0892
Mar 31 12:18:30 vish-laptop kernel: [   17.917762] vc032x: check sensor header 2c
[...]
Mar 31 12:18:30 vish-laptop kernel: [   17.978971] vc032x: Sensor ID 3130 (2)
Mar 31 12:18:30 vish-laptop kernel: [   17.978977] vc032x: Find Sensor PO3130NC
Mar 31 12:18:30 vish-laptop kernel: [   17.980602] gspca: probe ok
Mar 31 12:18:30 vish-laptop kernel: [   17.980649] usbcore: registered new interface driver vc032x
Mar 31 12:18:30 vish-laptop kernel: [   17.980654] vc032x: registered

And then :>
Mar 31 12:18:47 vish-laptop kernel: [   40.269914] usb 1-8: USB disconnect, address 3
Mar 31 12:18:47 vish-laptop kernel: [   40.270089] gspca: disconnect complete
Mar 31 12:18:47 vish-laptop kernel: [   40.740058] usb 5-2: new full speed USB device using uhci_hcd and address 2
Mar 31 12:18:48 vish-laptop kernel: [   40.885117] usb 5-2: not running at top speed; connect to a high speed hub
Mar 31 12:18:48 vish-laptop kernel: [   40.922253] usb 5-2: configuration #1 chosen from 1 choice
Mar 31 12:18:48 vish-laptop kernel: [   40.925148] gspca: probing 046d:0892
Mar 31 12:18:48 vish-laptop kernel: [   40.927110] vc032x: check sensor header 2c
Mar 31 12:18:48 vish-laptop kernel: [   40.980112] vc032x: Sensor ID 3130 (2)
Mar 31 12:18:48 vish-laptop kernel: [   40.980118] vc032x: Find Sensor PO3130NC
Mar 31 12:18:48 vish-laptop kernel: [   40.984222] gspca: probe ok

Note that the second time it doesnt register the vc032x.
And, i noticed linux-firmware (1.32) to 1.33 , which might be the cause. Not very sure though. might be a kernel problem

This is the message from the log when it works:
Mar 31 12:22:41 vish-laptop kernel: [   26.242548] gspca: main v2.7.0 registered
[...]
Mar 31 12:22:41 vish-laptop kernel: [   26.302101] gspca: probing 046d:0892
Mar 31 12:22:41 vish-laptop kernel: [   26.309010] vc032x: check sensor header 2c
[...]
Mar 31 12:22:41 vish-laptop kernel: [   26.425443] vc032x: Sensor ID 3130 (2)
Mar 31 12:22:41 vish-laptop kernel: [   26.425445] vc032x: Find Sensor PO3130NC
Mar 31 12:22:41 vish-laptop kernel: [   26.426775] gspca: probe ok
Mar 31 12:22:41 vish-laptop kernel: [   26.426802] usbcore: registered new interface driver vc032x
Mar 31 12:22:41 vish-laptop kernel: [   26.426806] vc032x: registered

Notice , I dont get a disconnect message. Webcam works correctly when i
dont get the disconnect.

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: linux-image-2.6.32-18-generic 2.6.32-18.27
Regression: Yes
Reproducible: No
TestedUpstream: No
ProcVersionSignature: Ubuntu 2.6.32-18.27-generic 2.6.32.10+drm33.1
Uname: Linux 2.6.32-18-generic i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
Architecture: i386
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  vishnoo    1248 F.... pulseaudio
 /dev/snd/pcmC0D0p:   vishnoo    1248 F...m pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xc8000000 irq 22'
   Mixer name	: 'Realtek ALC883'
   Components	: 'HDA:10ec0883,1025160d,00100002 HDA:14f12bfa,10250094,00090000'
   Controls      : 23
   Simple ctrls  : 13
CheckboxSubmission: a488dc8580a64da042cc99114e54d55a
CheckboxSystem: 5484a8dd99f006173bd2ac53fa4837c2
Date: Wed Mar 31 12:40:20 2010
Frequency: Once a day.
HibernationDevice: RESUME=UUID=87513ef2-a303-4082-94f3-352058dbd5ee
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Alpha i386 (20091209)
MachineType: Acer, inc. Aspire 5670
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-18-generic root=UUID=3e905623-5a65-47ef-a1d0-d8fba363d773 ro quiet splash
ProcEnviron:
 LANG=en_US.utf8
 SHELL=/bin/bash
RelatedPackageVersions: linux-firmware 1.33
SourcePackage: linux
dmi.bios.date: 01/12/07
dmi.bios.vendor: Acer
dmi.bios.version: v1.3239
dmi.board.name: Bodensee
dmi.board.vendor: Acer, Inc.
dmi.board.version: Not Applicable
dmi.chassis.type: 1
dmi.chassis.vendor: Acer, Inc.
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnAcer:bvrv1.3239:bd01/12/07:svnAcer,inc.:pnAspire5670:pvrNotApplicable:rvnAcer,Inc.:rnBodensee:rvrNotApplicable:cvnAcer,Inc.:ct1:cvrN/A:
dmi.product.name: Aspire 5670
dmi.product.version: Not Applicable
dmi.sys.vendor: Acer, inc.

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug i386 lucid needs-upstream-testing regression-potential

-- 
Does not detect webcam often
https://bugs.launchpad.net/bugs/552384
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