Cannot find "/dev/video0"

[Greg Haywood]

Binary package hint: tvtime

I am using a DVB-T USB tuner that uses the 7045 firmware.
When I plug it in it is recognised ok as this dmesg output:

[12646.756337] dvb-usb: found a 'Twinhan USB2.0 DVB-T receiver (TwinhanDTV Alpha/MagicBox II)' in warm state.
[12646.911221] dvb-usb: will pass the complete MPEG2 transport stream to the software demuxer.
[12646.911603] DVB: registering new adapter (Twinhan USB2.0 DVB-T receiver (TwinhanDTV Alpha/MagicBox II)).
[12646.983423] dvb-usb: MAC address: 08:ff:ff:ff:ff:ff
[12646.995417] DVB: registering frontend 0 (Twinhan VP7045/46 USB DVB-T)...
[12646.995484] input: IR-receiver inside an USB DVB receiver as /class/input/input8
[12646.995503] dvb-usb: schedule remote query interval to 400 msecs.
[12647.151070] dvb-usb: Twinhan USB2.0 DVB-T receiver (TwinhanDTV Alpha/MagicBox II) successfully initialized and connected.

but whe I launch tvtime I get the blue screen and it reports
:
"No such device, cannot open capture device /dev/video0"

Looking in /dev there is no video0

[Luca De Nardis (lucadn)]

Hi,

I had the same problem with a Pinnacle pci card.
It does not look like a tvtime bug... xaw/tv and myth tv did not work anymore either.
Probably (just a wild guess...) in 7.10 the device
is not associated to /dev/video0, but to some other /dev.
Check on Hardware information which /dev is now used for your card.
In my case it is now /dev/video1. If this is the case, just launch tvtime with the flag
"--device=/dev/video1" and it will work without any problem.

Hope it helps...

[Stéphane Loeuillet (leroutier)]

Not tvtime's fault

[Greg Haywood (ghaywood)]

So where should the bug be filed? It is under Ubuntu \ Tvtime as thats where the "bug" manifests itself.

Where to from here?

[RJ Clay (rjclay)]

You reported this bug a while ago and there hasn't been any activity in it recently. We were wondering is this still an issue for you? Can you try with latest Ubuntu release? Thanks in advance

[Greg Haywood (ghaywood)]

I tested this in Ubuntu 8.04 and it now appears ok, sorry for the delay bt I no longer use the twinhan dvb-t

[Thomas Novin (thomasn80)]

I use Ubuntu 8.04.1 and just installed tvtime. When starting tvtime I get the same error. Not very strange since we now have udev and the correct device should instead be something like /dev/dvb/adapter0/...

[Thomas Novin (thomasn80)]

Btw, tvtime seems very unsupported / unmanaged. Looking at http://tvtime.sourceforge.net/downloads.php the latest version is from 2005-09-08.

[Launchpad Janitor (janitor)]

This bug was fixed in the package tvtime - 1.0.2-12.1ubuntu1

---------------
tvtime (1.0.2-12.1ubuntu1) utopic; urgency=medium

  * Merge with Debian unstable (LP: #1215656, #1215678, #1264960), remaining
    Ubuntu changes:
    - debian/patches/tvtime-1.0.1-savematte.patch
    - debian/patches/desktop_file.patch
    - debian/patches/tvtime-1.0.2-alsa.patch
    - debian/patches/tvtime-1.0.2-alsamixer.patch
    - debian/patches/pal_audio_mode_persistence.patch
    - debian/patches/tvtime-1.0.2-screensaver.patch
    - debian/patches/tvtime-1.0.2-videoinput.patch
    - debian/patches/tvtime-1.0.2-osd.patch
    - debian/patches/tvtime-1.0.2-usage.patch
    - debian/patches/tvtime-1.0.2-command.patch
    - debian/patches/tvtime-1.0.2-cursor.patch
    - debian/patches/tvtime-1.0.2-metacity.patch
    - debian/patches/tvtime-1.0.2-x_size_hint.patch
    - debian/patches/tvtime-1.0.2-menu.patch
    - debian/patches/tvtime-1.0.2-focus_mouse.patch
    - debian/patches/tvtime-1.0.2-wmicon.patch
    - debian/patches/tvtime-1.0.2-tvtimeosd.patch
    - debian/patches/tvtime-1.0.2-cpuid.patch
    - debian/patches/tvtime-1.0.2-xmltv.patch
    - debian/patches/tvtime-1.0.2-vbidata.patch
    - debian/patches/tvtime-1.0.2-verbose.patch
    - debian/patches/tvtime-1.0.2-vbiscreen.patch
    - debian/patches/tvtime-1.0.2-closed_caption.patch
    - debian/patches/tvtime-1.0.2-vbi.patch
    - debian/patches/tvtime-1.0.2-xinerama.patch
    - debian/patches/tvtime-1.0.2-volume.patch
    - debian/patches/tvtime-1.0.2-xcommon.patch
    - debian/patches/tvtime-1.0.2-station_remap.patch
    - debian/patches/tvtime-1.0.2-channel_list.patch
    - debian/patches/tvtime-1.0.2_cppcheck.patch
    - debian/patches/tvtime-1.0.2-build.patch
    - debian/patches/tvtime-1.0.2-wmpid.patch
    - debian/patches/tvtime-1.0.2-libsupc++.patch
    - debian/control: Build-Depends on autoconf, automake, autopoint, libtool
      libasound2-dev and libxss instead of libxtst.
    - debian/rules: Call autoreconf to regenerate the configure script.
    - debian/source/format: Added file.
    Dropped Debian changes:
    - debian/control: Suggests: oss-compat.
    - debian/control: Build-Depends chrpath.
    - debian/rules: Fixed binary-or-shlib-defines-rpath.
  * debian/patches/tvtime-1.0.2-device.patch: Add feature to auto detect video
    and vbi devices. (LP: #153801)
  * debian/patches/tvtime-1.0.2-videodev.patch: Get rid of private versions of
    videodev.h and videodev2.h
  * Updated debian/patches/tvtime-1.0.2-alsa.patch: Improved alsa audio
    streaming code. (LP: #472770, #963036)
  * Removed debian/patches/tvtime-1.0.2-output_volume.patch
  * debian/rules: Make autoreconf not call autopoint since we ship a patch for
    po/Makefile.in.in
  * debian/control: Build-Depends on libv4l-dev.

tvtime (1.0.2-12.1) unstable; urgency=medium

  * Non-maintainer upload.
  * Update home.diff patch. (Closes: #732207)

tvtime (1.0.2-12) unstable; urgency=low

  * QA upload, orphaning this package, see #728576.

tvtime (1.0.2-11) unstable; urgency=low

  * Moved default.tvtime.xml from usr/share/doc/tvtime/examples to
    usr/share/tvtime. Closes: #709955.
  * debian/patches/home.diff: Added. Closes:...