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Bug#562085: marked as done (v4l2: tv video device drops frames)

Your message dated Tue, 4 Jun 2013 19:45:09 +0200
with message-id <20130604174509.GD4567@pisco.westfalen.local>
and subject line Closing
has caused the Debian Bug report #562085,
regarding v4l2: tv video device drops frames
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact owner@bugs.debian.org
immediately.)


-- 
562085: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=562085
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: bttv
Severity: grave
Justification: causes non-serious data loss

The TV image from the tuner is heavily dropping frames. Change appeared sometime during a previous dist-upgrade. Cannot pinpoint exact moment.

Diagnostics:

* dmesg:
bttv0: timeout: drop=16 irq=68/68, risc=30d0c97c
bttv0: timeout: drop=28 irq=112/112, risc=30cf49
bttv0: timeout: drop=59 irq=266/266, risc=3108b6
bttv0: timeout: drop=70 irq=305/305, risc=30d0d9
bttv0: timeout: drop=81 irq=345/345, risc=312309
bttv0: timeout: drop=99 irq=408/408, risc=30cf49
bttv0: timeout: drop=110 irq=447/447, risc=31230
bttv0: timeout: drop=129 irq=516/516, risc=05c2e
bttv0: timeout: drop=147 irq=578/578, risc=05c2e

* mplayer:
v4l2: ioctl dequeue buffer failed: Input/output error, idx = 0
[repeated many times]

* tvtime:
tvtime: Frame drop detected (543.57ms between consecutive frames.
tvtime: acquire 517.29 ms, show bot  3.75 ms, build top  3.10 ms
tvtime: waitbot 13.27 ms, show top  3.07 ms, build bot  3.09 ms
tvtime: average blit time: 9.37 ms, average render time: 2.92 ms
tvtime: Last frame times top-to-bot:  7.50 ms, bot-to-top: 19.44 ms
tvtime: Frame drop detected (118.58ms between consecutive frames.
tvtime: acquire 93.79 ms, show bot  2.44 ms, build top  2.85 ms
tvtime: waitbot 15.11 ms, show top  1.54 ms, build bot  2.85 ms
tvtime: average blit time: 9.50 ms, average render time: 3.11 ms
tvtime: Last frame times top-to-bot: 522.82 ms, bot-to-top: 19.50 ms

* I have tried with two different TV tuners (ATI TV Wonder VE and a Jetway/Kworld). Same issue.

* Frame drop stops during heavy disk IO or CPU usage.


-- System Information:
Debian Release: squeeze/sid
  APT prefers unstable
  APT policy: (990, 'unstable')
Architecture: i386 (i686)

Kernel: Linux 2.6.31-1-686 (SMP w/2 CPU cores)
Locale: LANG=en_US, LC_CTYPE=en_US (charmap=ANSI_X3.4-1968) (ignored: LC_ALL set to C)
Shell: /bin/sh linked to /bin/bash

--- End Message ---
--- Begin Message --- 
Hi,
your bug has been filed against the "linux-2.6" source package and was filed for
a kernel older than the recently released Debian 7.0 / Wheezy with a severity
less than important.

We don't have the ressources to reproduce the complete backlog of all older kernel
bugs, so we're closing this bug for now. If you can reproduce the bug with Debian Wheezy
or a more recent kernel from testing or unstable, please reopen the bug by sending
a mail to control@bugs.debian.org with the following three commands included in the
mail:

reopen BUGNUMBER
reassign BUGNUMBER src:linux
thanks

Cheers,
        Moritz

--- End Message ---
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