No subject


Mon Mar 10 15:32:33 UTC 2008


stream, although it's complaining about a low latency timer and an encoder
revision. Not sure if those are possible causes.

Here are the first few lines from /var/log/messages which seem to coincide
with early Myth errors and a subsequent reboot. Notice the messages about
missing symbols? Are these important?

Apr 13 20:57:13 magic kernel: [254091.089665] ivtv0: All encoder YUV stream
buffers are full. Dropping data.
Apr 13 20:57:13 magic kernel: [254091.089674] ivtv0: Cause: the application
is not reading fast enough.
Apr 13 21:04:22 magic syslogd 1.4.1#21ubuntu3: restart.
Apr 13 21:04:23 magic kernel: Inspecting /boot/System.map-2.6.22-14-generic
Apr 13 21:04:23 magic kernel: Loaded 25445 symbols from
/boot/System.map-2.6.22-14-generic.
Apr 13 21:04:23 magic kernel: Symbols match kernel version 2.6.22.
Apr 13 21:04:23 magic kernel: No module symbols loaded - kernel modules not
enabled.
Apr 13 21:04:23 magic kernel: [    0.000000] Linux version 2.6.22-14-generic
(buildd at palmer) (gcc version 4.1.
3 20070929 (prerelease) (Ubuntu 4.1.2-16ubuntu2)) #1 SMP Sun Oct 14 23:05:12
GMT 2007 (Ubuntu 2.6.22-14.46-gen
eric)

And then here are any messages having to do with ivtv - I apologize if it's
a little redundant but I don't want to accidentally leave anything out:

Apr 13 20:57:13 magic kernel: [254091.089665] ivtv0: All encoder YUV stream
buffers are full. Dropping data.
Apr 13 20:57:13 magic kernel: [254091.089674] ivtv0: Cause: the application
is not reading fast enough.
Apr 13 21:04:23 magic kernel: [   30.025993] ivtv:  ====================
START INIT IVTV ====================
Apr 13 21:04:23 magic kernel: [   30.025999] ivtv:  version 1.0.0
(2.6.22-14-generic SMP mod_unload 586 ) loading
Apr 13 21:04:23 magic kernel: [   30.026534] ivtv0: Autodetected Hauppauge
card (cx23416 based)
Apr 13 21:04:23 magic kernel: [   30.028884] ivtv0: Unreasonably low latency
timer, setting to 64 (was 32)
Apr 13 21:04:23 magic kernel: [   30.687148] ivtv0: loaded
v4l-cx2341x-enc.fw firmware (4106434152 bytes)
Apr 13 21:04:23 magic kernel: [   30.899982] ivtv0: Encoder revision:
0x02050032
Apr 13 21:04:23 magic kernel: [   30.899985] ivtv0: Recommended firmware
version is 0x02060039.
Apr 13 21:04:23 magic kernel: [   30.956284] ivtv0: Autodetected Hauppauge
WinTV PVR-150
Apr 13 21:04:23 magic kernel: [   30.956286] ivtv0: reopen i2c bus for
IR-blaster support
Apr 13 21:04:23 magic kernel: [   31.020034] tuner 1-0061: chip found @ 0xc2
(ivtv i2c driver #0)
Apr 13 21:04:23 magic kernel: [   31.174629] cx25840 1-0044: cx25841-24
found @ 0x88 (ivtv i2c driver #0)
Apr 13 21:04:23 magic kernel: [   34.545488] wm8775 1-001b: chip found @
0x36 (ivtv i2c driver #0)
Apr 13 21:04:23 magic kernel: [   34.899612] ivtv0: Registered device video0
for encoder MPEG (4 MB)
Apr 13 21:04:23 magic kernel: [   34.899928] ivtv0: Registered device
video32 for encoder YUV (2 MB)
Apr 13 21:04:23 magic kernel: [   34.900279] ivtv0: Registered device vbi0
for encoder VBI (1 MB)
Apr 13 21:04:23 magic kernel: [   34.900501] ivtv0: Registered device
video24 for encoder PCM audio (1 MB)
Apr 13 21:04:23 magic kernel: [   34.921793] ivtv0: Initialized Hauppauge
WinTV PVR-150, card #0
Apr 13 21:04:23 magic kernel: [   34.921832] ivtv:  ====================
END INIT IVTV  ====================

So I'm not sure where to go from here. The capture device is working in some
capacity since it can scan for channels. It also doesn't appear to be a
permissions issue because I can

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Content-Type: text/html; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

I built a Mythbuntu box recently, updating it via Synaptic to Myth .21. I can get about 5 HD channels over firewire but no &#39;clear&#39; channels, so I decided to try and use the inputs on my PVR-150 card, which has been in the system since I built it. After removing firewire, adding the Hauppauge card as an input and tuner source, and scanning the channels, I tried watching LiveTV but only got a blank screen. I downloaded and installed TVTime to test the tuner outside of Myth and when I try launching TVTime I get the message &quot;ivtv: Invalid argument Cannot open capture device /dev/video0&quot;. /dev/video0 does exist, and it appears to be working at least enough that scanning for channels in Myth returns valid analog channels - ie, the channels it finds match up with what I can get on a cable-ready TV.<br>
<br>Finally, I was able to cat /dev/video0 to an mpg file and play it back with Mplayer both as myself and via sudo, which I found odd since if I can get delicious shrimp from Long John Silver&#39;s to display on my screen via that route, why not via MythTV or TVTime?<br>
<br>I did some poking about and may or may not have found important information, but it&#39;s above my skill level so I was hoping somebody here could help me out. Here&#39;s what I think is relevant info (magic is the machine&#39;s hostname):<br>
<br>matt at magic:~$ dmesg | grep ivtv<br>[&nbsp;&nbsp; 30.025993] ivtv:&nbsp; ==================== START INIT IVTV ====================<br>[&nbsp;&nbsp; 30.025999] ivtv:&nbsp; version 1.0.0 (2.6.22-14-generic SMP mod_unload 586 ) loading<br>[&nbsp;&nbsp; 30.026534] ivtv0: Autodetected Hauppauge card (cx23416 based)<br>
[&nbsp;&nbsp; 30.028884] ivtv0: Unreasonably low latency timer, setting to 64 (was 32)<br>[&nbsp;&nbsp; 30.687148] ivtv0: loaded v4l-cx2341x-enc.fw firmware (4106434152 bytes)<br>[&nbsp;&nbsp; 30.899982] ivtv0: Encoder revision: 0x02050032<br>[&nbsp;&nbsp; 30.899985] ivtv0: Recommended firmware version is 0x02060039.<br>
[&nbsp;&nbsp; 30.956284] ivtv0: Autodetected Hauppauge WinTV PVR-150<br>[&nbsp;&nbsp; 30.956286] ivtv0: reopen i2c bus for IR-blaster support<br>[&nbsp;&nbsp; 31.020034] tuner 1-0061: chip found @ 0xc2 (ivtv i2c driver #0)<br>[&nbsp;&nbsp; 31.174629] cx25840 1-0044: cx25841-24 found @ 0x88 (ivtv i2c driver #0)<br>
[&nbsp;&nbsp; 34.545488] wm8775 1-001b: chip found @ 0x36 (ivtv i2c driver #0)<br>[&nbsp;&nbsp; 34.899612] ivtv0: Registered device video0 for encoder MPEG (4 MB)<br>[&nbsp;&nbsp; 34.899928] ivtv0: Registered device video32 for encoder YUV (2 MB)<br>[&nbsp;&nbsp; 34.900279] ivtv0: Registered device vbi0 for encoder VBI (1 MB)<br>
[&nbsp;&nbsp; 34.900501] ivtv0: Registered device video24 for encoder PCM audio (1 MB)<br>[&nbsp;&nbsp; 34.921793] ivtv0: Initialized Hauppauge WinTV PVR-150, card #0<br>[&nbsp;&nbsp; 34.921832] ivtv:&nbsp; ====================&nbsp; END INIT IVTV&nbsp; ====================<br>
<br>From that, it would appear that /dev/video0 is being created for the MPEG stream, although it&#39;s complaining about a low latency timer and an encoder revision. Not sure if those are possible causes.<br><br>Here are the first few lines from /var/log/messages which seem to coincide with early Myth errors and a subsequent reboot. Notice the messages about missing symbols? Are these important?<br>
<br>Apr 13 20:57:13 magic kernel: [254091.089665] ivtv0: All encoder YUV stream buffers are full. Dropping data.<br>Apr 13 20:57:13 magic kernel: [254091.089674] ivtv0: Cause: the application is not reading fast enough.<br>
Apr 13 21:04:22 magic syslogd 1.4.1#21ubuntu3: restart.<br>Apr 13 21:04:23 magic kernel: Inspecting /boot/System.map-2.6.22-14-generic<br>Apr 13 21:04:23 magic kernel: Loaded 25445 symbols from /boot/System.map-2.6.22-14-generic.<br>
Apr 13 21:04:23 magic kernel: Symbols match kernel version <a href="http://2.6.22.">2.6.22.</a><br>Apr 13 21:04:23 magic kernel: No module symbols loaded - kernel modules not enabled.<br>Apr 13 21:04:23 magic kernel: [&nbsp;&nbsp;&nbsp; 0.000000] Linux version 2.6.22-14-generic (buildd at palmer) (gcc version 4.1.<br>
3 20070929 (prerelease) (Ubuntu 4.1.2-16ubuntu2)) #1 SMP Sun Oct 14 23:05:12 GMT 2007 (Ubuntu 2.6.22-14.46-gen<br>eric)<br><br>And then here are any messages having to do with ivtv - I apologize if it&#39;s a little redundant but I don&#39;t want to accidentally leave anything out:<br>
<br>Apr 13 20:57:13 magic kernel: [254091.089665] ivtv0: All encoder YUV stream buffers are full. Dropping data.<br>Apr 13 20:57:13 magic kernel: [254091.089674] ivtv0: Cause: the application is not reading fast enough.<br>
Apr 13 21:04:23 magic kernel: [&nbsp;&nbsp; 30.025993] ivtv:&nbsp; ==================== START INIT IVTV ====================<br>Apr 13 21:04:23 magic kernel: [&nbsp;&nbsp; 30.025999] ivtv:&nbsp; version 1.0.0 (2.6.22-14-generic SMP mod_unload 586 ) loading<br>
Apr 13 21:04:23 magic kernel: [&nbsp;&nbsp; 30.026534] ivtv0: Autodetected Hauppauge card (cx23416 based)<br>Apr 13 21:04:23 magic kernel: [&nbsp;&nbsp; 30.028884] ivtv0: Unreasonably low latency timer, setting to 64 (was 32)<br>Apr 13 21:04:23 magic kernel: [&nbsp;&nbsp; 30.687148] ivtv0: loaded v4l-cx2341x-enc.fw firmware (4106434152 bytes)<br>
Apr 13 21:04:23 magic kernel: [&nbsp;&nbsp; 30.899982] ivtv0: Encoder revision: 0x02050032<br>Apr 13 21:04:23 magic kernel: [&nbsp;&nbsp; 30.899985] ivtv0: Recommended firmware version is 0x02060039.<br>Apr 13 21:04:23 magic kernel: [&nbsp;&nbsp; 30.956284] ivtv0: Autodetected Hauppauge WinTV PVR-150<br>
Apr 13 21:04:23 magic kernel: [&nbsp;&nbsp; 30.956286] ivtv0: reopen i2c bus for IR-blaster support<br>Apr 13 21:04:23 magic kernel: [&nbsp;&nbsp; 31.020034] tuner 1-0061: chip found @ 0xc2 (ivtv i2c driver #0)<br>Apr 13 21:04:23 magic kernel: [&nbsp;&nbsp; 31.174629] cx25840 1-0044: cx25841-24 found @ 0x88 (ivtv i2c driver #0)<br>
Apr 13 21:04:23 magic kernel: [&nbsp;&nbsp; 34.545488] wm8775 1-001b: chip found @ 0x36 (ivtv i2c driver #0)<br>Apr 13 21:04:23 magic kernel: [&nbsp;&nbsp; 34.899612] ivtv0: Registered device video0 for encoder MPEG (4 MB)<br>Apr 13 21:04:23 magic kernel: [&nbsp;&nbsp; 34.899928] ivtv0: Registered device video32 for encoder YUV (2 MB)<br>
Apr 13 21:04:23 magic kernel: [&nbsp;&nbsp; 34.900279] ivtv0: Registered device vbi0 for encoder VBI (1 MB)<br>Apr 13 21:04:23 magic kernel: [&nbsp;&nbsp; 34.900501] ivtv0: Registered device video24 for encoder PCM audio (1 MB)<br>Apr 13 21:04:23 magic kernel: [&nbsp;&nbsp; 34.921793] ivtv0: Initialized Hauppauge WinTV PVR-150, card #0<br>
Apr 13 21:04:23 magic kernel: [&nbsp;&nbsp; 34.921832] ivtv:&nbsp; ====================&nbsp; END INIT IVTV&nbsp; ====================<br><br>So I&#39;m not sure where to go from here. The capture device is working in some capacity since it can scan for channels. It also doesn&#39;t appear to be a permissions issue because I can <br>
<br><br><br><br><br><br><br><br><br>

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