Public bug reported:
Attempting to read /dev/video0 for USB video device gives:
libv4l2: error turning on stream: No space left on device
from the video4linux library, and the video4linux ioctl fail with e.g.
VIDIOC_STREAMON - Unable to start capture: Device or resource busy
I wrote a test program and find that "Control" ioctls such as
VIDIOC_G_FMT are successful: I can query the format which the camera
provides, so the "connection" with the camera seems OK.
Reading the frame, however seems impossible.
(cheese and guvcview are also unable to display an image, so it isn't
just my programming - and my program does work on a laptop which runs
NetBSD, so no ubuntu testing there)
I tested the following cameras
Bus 002 Device 003: ID 046d:09a1 Logitech, Inc. QuickCam Communicate MP/S5500
Bus 002 Device 004: ID 0471:2038 Philips (or NXP)
Bus 002 Device 006: ID 041e:406d Creative Technology, Ltd
(I also tried with ubuntu 10.04)
Most similar bugs have been "solved" in the past by installing new kernels -
the above was tried with the most recent at the time of this report:
3.2.0-25-generic #40-Ubuntu SMP Wed May 23 20:30:51 UTC 2012 x86_64 x86_64
x86_64 GNU/Linux
This computer has USB3 ports as well as USB2 ports - I have tried a
variety - apport should show the Logitech plugged into a USB2 port.
These cameras work on other compurters running 10.04 - if I had to
guess, this is the only computer I have with USB3 ports - so is it a USB
controller driver issue?
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-3.2.0-25-generic 3.2.0-25.40
ProcVersionSignature: Ubuntu 3.2.0-25.40-generic 3.2.18
Uname: Linux 3.2.0-25-generic x86_64
NonfreeKernelModules: fglrx
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu8
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC2: prlw1 2485 F.... pulseaudio
/dev/snd/controlC0: prlw1 2485 F.... pulseaudio
/dev/snd/controlC1: prlw1 2485 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
Card hw:0 'PCH'/'HDA Intel PCH at 0xe0520000 irq 95'
Mixer name : 'Realtek ALC892'
Components : 'HDA:10ec0892,80862018,00100302'
Controls : 41
Simple ctrls : 20
Card1.Amixer.info:
Card hw:1 'U0x46d0x9a1'/'USB Device 0x46d:0x9a1 at usb-0000:00:1d.0-1.8, full
speed'
Mixer name : 'USB Mixer'
Components : 'USB046d:09a1'
Controls : 2
Simple ctrls : 1
Card1.Amixer.values:
Simple mixer control 'Mic',0
Capabilities: cvolume cvolume-joined cswitch cswitch-joined penum
Capture channels: Mono
Limits: Capture 0 - 3072
Mono: Capture 1536 [50%] [24.00dB] [on]
Card2.Amixer.info:
Card hw:2 'Generic'/'HD-Audio Generic at 0xe0320000 irq 96'
Mixer name : 'ATI R6xx HDMI'
Components : 'HDA:1002aa01,00aa0100,00100200'
Controls : 6
Simple ctrls : 1
Card2.Amixer.values:
Simple mixer control 'IEC958',0
Capabilities: pswitch pswitch-joined penum
Playback channels: Mono
Mono: Playback [on]
CurrentDmesg: Error: command ['sh', '-c', 'dmesg | comm -13 --nocheck-order
/var/log/dmesg -'] failed with exit code 1: comm: /var/log/dmesg: Permission
denied
Date: Mon Jun 18 17:50:12 2012
IwConfig: Error: [Errno 2] No such file or directory
ProcEnviron:
LANGUAGE=en_GB:en
TERM=xterm
PATH=(custom, no user)
LANG=en_GB.UTF-8
SHELL=/bin/tcsh
ProcFB: 0 VESA VGA
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-25-generic
root=UUID=69f474df-7e0b-4e6e-a210-904b21597280 ro quiet splash vt.handoff=7
RfKill: Error: [Errno 2] No such file or directory
SourcePackage: linux
UdevDb: Error: [Errno 2] No such file or directory
UpgradeStatus: No upgrade log present (probably fresh install)
WifiSyslog:
dmi.bios.date: 03/27/2012
dmi.bios.vendor: Intel Corp.
dmi.bios.version: SIX7910J.86A.0460.2012.0327.1627
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: DX79SI
dmi.board.vendor: Intel Corporation
dmi.board.version: AAG28808-600
dmi.chassis.type: 3
dmi.modalias:
dmi:bvnIntelCorp.:bvrSIX7910J.86A.0460.2012.0327.1627:bd03/27/2012:svn:pn:pvr:rvnIntelCorporation:rnDX79SI:rvrAAG28808-600:cvn:ct3:cvr:
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug precise
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1014749
Title:
can't read uvcvideo (usb video / webcams) devices
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1014749/+subscriptions
--
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
