[SOLVED] Webcam not functioning after this mornings update

deiwin · 2014-04-10 10:17:01

Hi, I'm a newb so please just ask me for any extra information you might need.

So this morning I upgraded everything with kalu, as I usually do. Pacman logs:

[2014-04-10 09:59] [kalu] synchronized database core
[2014-04-10 09:59] [kalu] synchronized database extra
[2014-04-10 10:00] [kalu] synchronized database community
[2014-04-10 10:08] [kalu] starting sysupgrade...
[2014-04-10 10:10] [kalu] upgraded coreutils (8.22-3 -> 8.22-4)
[2014-04-10 10:10] [kalu] upgraded flashplugin (11.2.202.346-1 -> 11.2.202.350-1)
[2014-04-10 10:10] [kalu] upgraded git (1.9.1-1 -> 1.9.2-1)
[2014-04-10 10:10] [ALPM] warning: /etc/highlight/filetypes.conf installed as /etc/highlight/filetypes.conf.pacnew
[2014-04-10 10:10] [kalu] upgraded highlight (3.17-1 -> 3.18-1)
[2014-04-10 10:10] [kalu] upgraded kmod (16-1 -> 17-1)
[2014-04-10 10:10] [kalu] upgraded libsystemd (212-1 -> 212-2)
[2014-04-10 10:10] [kalu] upgraded libutil-linux (2.24.1-4 -> 2.24.1-6)
[2014-04-10 10:10] [ALPM-SCRIPTLET] >>> Updating module dependencies. Please wait ...
[2014-04-10 10:10] [ALPM-SCRIPTLET] >>> Generating initial ramdisk, using mkinitcpio.  Please wait...
[2014-04-10 10:10] [ALPM-SCRIPTLET] ==> Building image from preset: /etc/mkinitcpio.d/linux.preset: 'default'
[2014-04-10 10:10] [ALPM-SCRIPTLET]   -> -k /boot/vmlinuz-linux -c /etc/mkinitcpio.conf -g /boot/initramfs-linux.img
[2014-04-10 10:10] [ALPM-SCRIPTLET] ==> Starting build: 3.14.0-4-ARCH
[2014-04-10 10:10] [ALPM-SCRIPTLET]   -> Running build hook: [base]
[2014-04-10 10:10] [ALPM-SCRIPTLET]   -> Running build hook: [udev]
[2014-04-10 10:10] [ALPM-SCRIPTLET]   -> Running build hook: [autodetect]
[2014-04-10 10:10] [ALPM-SCRIPTLET]   -> Running build hook: [modconf]
[2014-04-10 10:10] [ALPM-SCRIPTLET]   -> Running build hook: [block]
[2014-04-10 10:10] [ALPM-SCRIPTLET]   -> Running build hook: [filesystems]
[2014-04-10 10:10] [ALPM-SCRIPTLET]   -> Running build hook: [keyboard]
[2014-04-10 10:10] [ALPM-SCRIPTLET]   -> Running build hook: [fsck]
[2014-04-10 10:10] [ALPM-SCRIPTLET] ==> Generating module dependencies
[2014-04-10 10:10] [ALPM-SCRIPTLET] ==> Creating gzip initcpio image: /boot/initramfs-linux.img
[2014-04-10 10:10] [ALPM-SCRIPTLET] ==> Image generation successful
[2014-04-10 10:10] [ALPM-SCRIPTLET] ==> Building image from preset: /etc/mkinitcpio.d/linux.preset: 'fallback'
[2014-04-10 10:10] [ALPM-SCRIPTLET]   -> -k /boot/vmlinuz-linux -c /etc/mkinitcpio.conf -g /boot/initramfs-linux-fallback.img -S autodetect
[2014-04-10 10:10] [ALPM-SCRIPTLET] ==> Starting build: 3.14.0-4-ARCH
[2014-04-10 10:10] [ALPM-SCRIPTLET]   -> Running build hook: [base]
[2014-04-10 10:10] [ALPM-SCRIPTLET]   -> Running build hook: [udev]
[2014-04-10 10:10] [ALPM-SCRIPTLET]   -> Running build hook: [modconf]
[2014-04-10 10:10] [ALPM-SCRIPTLET]   -> Running build hook: [block]
[2014-04-10 10:10] [ALPM-SCRIPTLET] ==> WARNING: Possibly missing firmware for module: aic94xx
[2014-04-10 10:10] [ALPM-SCRIPTLET] ==> WARNING: Possibly missing firmware for module: smsmdtv
[2014-04-10 10:10] [ALPM-SCRIPTLET]   -> Running build hook: [filesystems]
[2014-04-10 10:10] [ALPM-SCRIPTLET]   -> Running build hook: [keyboard]
[2014-04-10 10:10] [ALPM-SCRIPTLET]   -> Running build hook: [fsck]
[2014-04-10 10:10] [ALPM-SCRIPTLET] ==> Generating module dependencies
[2014-04-10 10:10] [ALPM-SCRIPTLET] ==> Creating gzip initcpio image: /boot/initramfs-linux-fallback.img
[2014-04-10 10:11] [ALPM-SCRIPTLET] ==> Image generation successful
[2014-04-10 10:11] [kalu] upgraded linux (3.13.8-1 -> 3.14-4)
[2014-04-10 10:11] [kalu] upgraded linux-headers (3.13.8-1 -> 3.14-4)
[2014-04-10 10:11] [kalu] upgraded lirc-utils (1:0.9.0-70 -> 1:0.9.0-71)
[2014-04-10 10:11] [kalu] upgraded util-linux (2.24.1-4 -> 2.24.1-6)
[2014-04-10 10:11] [kalu] upgraded systemd (212-1 -> 212-2)
[2014-04-10 10:11] [kalu] upgraded systemd-sysvcompat (212-1 -> 212-2)
[2014-04-10 10:11] [ALPM-SCRIPTLET] In order to use the new version, reload all virtualbox modules manually.
[2014-04-10 10:11] [kalu] upgraded virtualbox-host-modules (4.3.10-1 -> 4.3.10-2)
[2014-04-10 10:11] [kalu] upgraded xfburn (0.5.0-1 -> 0.5.2-1)
[2014-04-10 10:11] [kalu] sysupgrade completed

Didn't notice anything out of the ordinary during the process. Also missed the fact that kernel was updated and didn't reboot right after the update as I ususally do if kernel gets updated.

Now the problems start. Sqwiggle (an online video chat) doesn't work anymore. I try refreshing the page, restarting chromium and rebooting. Nothing helps. I don't remember doing anything special to get the webcam working initially, but I start googling 'arch webcam' and come by this wiki page. I identify my webcam to be using linux-uvc:

[deiwin@deiwin-arch ~]$ lsusb
...
Bus 001 Device 006: ID 04f2:b221 Chicony Electronics Co., Ltd integrated camera
...

After that I do everything described in steps 3 and 4:

[deiwin@deiwin-arch ~]$ cat /etc/modules-load.d/webcam.conf
uvcvideo

[deiwin@deiwin-arch ~]$ dmesg | grep -A 4 -B 2 amera
[    2.169150] EXT4-fs (sda2): re-mounted. Opts: (null)
[    2.172397] Linux video capture interface: v2.00
[    2.178813] uvcvideo: Found UVC 1.00 device Integrated Camera (04f2:b221)
[    2.180572] input: Integrated Camera as /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.6/1-1.6:1.0/input/input2
[    2.180613] usbcore: registered new interface driver uvcvideo
[    2.180615] USB Video Class driver (1.1.1)
[    2.182674] systemd-udevd[167]: starting version 212
[    2.236410] input: Lid Switch as /devices/LNXSYSTM:00/device:00/PNP0C0D:00/input/input3

[deiwin@deiwin-arch ~]$ groups
video power users vboxusers kalu sudo

[deiwin@deiwin-arch ~]$ cat /etc/devfsd.conf
REGISTER        video0       PERMISSIONS     root.users 0660

I then installed guvcview. Running that I get the following log:

[deiwin@deiwin-arch ~]$ guvcview 
guvcview 1.7.3
file guvcview_video.mkv has extension type 1
file guvcview_image.jpg has extension type 0
file guvcview_image.jpg has extension type 0
Video file suffix detected: 0
Image file suffix detected: 0
ALSA lib pcm_dsnoop.c:618:(snd_pcm_dsnoop_open) unable to open slave
ALSA lib pcm_dmix.c:1022:(snd_pcm_dmix_open) unable to open slave
ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear
ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe
ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side
ALSA lib pcm_dmix.c:1022:(snd_pcm_dmix_open) unable to open slave
connect(2) call to /dev/shm/jack-1000/default/jack_0 failed (err=No such file or directory)
attempt to connect to server failed
video device: /dev/video0 
vid:04f2 
pid:b221 
driver:uvcvideo
device doesn't seem to support uvc H264 (0)
Init. Integrated Camera (location: usb-0000:00:1a.0-1.6)
{ pixelformat = 'YUYV', description = 'YUV 4:2:2 (YUYV)' }
{ discrete: width = 640, height = 480 }
	Time interval between frame: 1/30, 1/15, 
{ discrete: width = 640, height = 360 }
	Time interval between frame: 1/30, 1/15, 
[... lots of similar stuff as the 4 lines above, I assume it's not important ...]
checking muxed H264 format support
device doesn't seem to support uvc H264 (0)
checking format: MJPG
VIDIOC_G_COMP:: Inappropriate ioctl for device
fps is set to 1/30
drawing controls

fps is set to 1/30

GUVCVIEW Signals:
  SIGUSR1: Video stop/start capture
  SIGUSR2: Image capture
  SIGINT (ctrl+c): Exit
examples:
   kill -s SIGUSR1 'pid'
   killall -s USR2 guvcview

Checking video mode 640x480@32bpp : OK 
 Could not grab image (select timeout): Resource temporarily unavailable
libv4l2: error dequeuing buf: Resource temporarily unavailable
libv4l2: error dequeuing buf: Resource temporarily unavailable
libv4l2: error dequeuing buf: Resource temporarily unavailable
libv4l2: error dequeuing buf: Resource temporarily unavailable
libv4l2: error dequeuing buf: Resource temporarily unavailable
ioctl (-1067952623) retried 4 times - giving up: Resource temporarily unavailable)
VIDIOC_DQBUF - Unable to dequeue buffer : Resource temporarily unavailable
Error grabbing image 
 Could not grab image (select timeout): Resource temporarily unavailable
libv4l2: error dequeuing buf: Resource temporarily unavailable
libv4l2: error dequeuing buf: Resource temporarily unavailable
libv4l2: error dequeuing buf: Resource temporarily unavailable
libv4l2: error dequeuing buf: Resource temporarily unavailable
libv4l2: error dequeuing buf: Resource temporarily unavailable
ioctl (-1067952623) retried 4 times - giving up: Resource temporarily unavailable)
VIDIOC_DQBUF - Unable to dequeue buffer : Resource temporarily unavailable
Error grabbing image
[ ... same thing repeated every few seconds ...]
write /home/deiwin/.config/guvcview/video0 OK
free controls
cleaned allocations - 100%
Closing portaudio ...OK
Closing GTK... OK

I've tried updating packages after that as well, but that doesn't seem to have helped:

[2014-04-10 11:27] [PACMAN] Running 'pacman -S guvcview'
[2014-04-10 11:27] [PACMAN] installed guvcview (1.7.3-1)
[2014-04-10 11:47] [kalu] synchronized database extra
[2014-04-10 11:47] [kalu] synchronized database community
[2014-04-10 11:47] [kalu] starting sysupgrade...
[2014-04-10 11:47] [kalu] upgraded x265 (0.8-2 -> 0.9-1)
[2014-04-10 11:47] [kalu] upgraded ffmpeg (1:2.2-2 -> 1:2.2-3)
[2014-04-10 11:47] [kalu] upgraded luajit (2.0.3-1 -> 2.0.3-2)
[2014-04-10 11:47] [kalu] sysupgrade completed

Any ideas on what could be amiss?

Last edited by deiwin (2014-04-11 07:36:31)

deiwin · 2014-04-11 07:36:04

And now it's working again. Maybe one of the new updates fixed it:

[2014-04-10 12:58] [kalu] synchronized database extra
[2014-04-10 12:58] [kalu] synchronized database community
[2014-04-10 12:58] [kalu] starting sysupgrade...
[2014-04-10 13:00] [kalu] upgraded chromium (33.0.1750.152-1 -> 34.0.1847.116-1)
[2014-04-10 13:00] [kalu] sysupgrade completed
[2014-04-10 19:42] [kalu] synchronized database extra
[2014-04-10 19:42] [kalu] synchronized database community
[2014-04-10 19:42] [kalu] starting sysupgrade...
[2014-04-10 19:42] [kalu] upgraded perl-xml-libxml (2.0110-1 -> 2.0115-1)
[2014-04-10 19:42] [kalu] upgraded python2-simplejson (3.3.3-2 -> 3.4.0-1)
[2014-04-10 19:42] [kalu] sysupgrade completed
[2014-04-10 21:21] [kalu] synchronized database extra
[2014-04-10 21:21] [kalu] synchronized database community
[2014-04-10 21:21] [kalu] starting sysupgrade...
[2014-04-10 21:21] [kalu] upgraded libjpeg-turbo (1.3.0-4 -> 1.3.1-1)
[2014-04-10 21:21] [kalu] sysupgrade completed

In any case, I will mark this issue solved.

WorMzy · 2014-04-11 08:36:34

Why are you in the video and power groups? Being in these groups *can* cause problems, but this may not be the cause here, since the symptoms have disappeared. If the problem returns, it may be worth looking into.

https://wiki.archlinux.org/index.php/Us … emd_groups

deiwin · 2014-04-11 08:58:11

I added myself to the video group trying to fix the issue. As described here: https://wiki.archlinux.org/index.php/We … ermissions I'm not sure about the power group. Thanks for the info.

Arch Linux

#1 2014-04-10 10:17:01

[SOLVED] Webcam not functioning after this mornings update

#2 2014-04-11 07:36:04

Re: [SOLVED] Webcam not functioning after this mornings update

#3 2014-04-11 08:36:34

Re: [SOLVED] Webcam not functioning after this mornings update

#4 2014-04-11 08:58:11

Re: [SOLVED] Webcam not functioning after this mornings update

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